USRE43073EExpiredUtility

Formulation of phosphorus fertilizer for plants

Individually held — no corporate assignee on recordPriority: Feb 7, 1994Filed: Jan 8, 2009Granted: Jan 10, 2012

Est. expiryFeb 7, 2014(expired)· nominal 20-yr term from priority

Inventors:Carol J. Lovatt

C05G 5/23C05B 7/00

PatentIndex Score

Cited by

177

References

337

Claims

Abstract

Concentrated phosphorus fertilizers are disclosed that comprise a buffered composition of an organic acid and salts thereof and a phosphorous-containing acid and salts thereof. The concentrated phosphorus fertilizers can be diluted with water of pH ranging from about 6.5 to about 8.5 at ratios of concentrate to water at about 1:40 to about 1:600 to result in a fertilizer having a pH in the range acceptable for foliar uptake of phosphorus.

Claims

exact text as granted — not AI-modified

1. A concentrated phosphorus fertilizer, such that when said concentrated phosphorus fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part said concentrated phosphorus fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake, and wherein said concentrated phosphorus fertilizer is buffered and analyzes to about 0.30 kg/L P 2 O 5 or greater
wherein said concentrated phosphorus fertilizer is prepared by a process comprising:
mixing a base and a phosphorous source,

thereby forming said concentrated phosphorus fertilizer which analyzes to about 0.30 kg/L P 2 O 5 or greater.

2. The concentrated phosphorus fertilizer according to claim 1 , wherein said phosphorous source is a member selected from the group consisting of a phosphorous-containing acid, a salt of a phosphorous-containing acid, and combinations thereof.

3. The concentrated phosphorus fertilizer according to claim 1 , wherein said about 0.30 kg/L P 2 O 5 or greater is from about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

4. The concentrated phosphorus fertilizer according to claim 1 , wherein the quantity of said phosphorous source is sufficient so that said concentrated phosphorus fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

5. The concentrated phosphorus fertilizer according to claim 2 , wherein said phosphorous-containing acid is a member selected from the group consisting of phosphorous acid, hypophosphorous acid, polyphosphorous acid, polyhypophosphorous acid and combinations thereof.

6. The concentrated phosphorus fertilizer according to claim 1 , wherein said concentrated phosphorus fertilizer has a pH of about 5.0 to about 7.0.

7. The concentrated phosphorus fertilizer according to claim 6 , wherein said concentrated phosphorus fertilizer has a pH of about 5.5 to about 6.5.

8. The concentrated phosphorus fertilizer according to claim 1 , wherein said concentrated phosphorus fertilizer is essentially clear and devoid of precipitate.

9. The concentrated phosphorus fertilizer according to claim 1 , further comprising a plant nutrient, wherein said plant nutrient is a member selected from the group consisting of nitrogen, potassium, sulfur, calcium, magnesium, boron, iron, manganese, molybdenum, zinc, ammonia and combinations thereof.

10. The concentrated phosphorus fertilizer according to claim 1 , wherein said phosphorous source is a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof.

11. The concentrated phosphorus fertilizer according to claim 1 , further comprising an organic acid.

12. The concentrated phosphorus fertilizer according to claim 11 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

13. The concentrated phosphorus fertilizer according to claim 11 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

14. The concentrated phosphorus fertilizer according to claim 11 , wherein said organic acid is citric acid.

15. The concentrated phosphorus fertilizer according to claim 4 , further comprising an organic acid.

16. The concentrated phosphorus fertilizer according to claim 15 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

17. The concentrated phosphorus fertilizer according to claim 15 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

18. The concentrated phosphorus fertilizer according to claim 15 , wherein said organic acid is citric acid.

19. The concentrated phosphorus fertilizer according to claim 1 , wherein said mixing further comprises an organic acid concentrated phosphorus fertilizer is prepared by a process comprising: mixing said base, said phosphorous source, and an organic acid, thereby forming said concentrated phosphorus fertilizer.

20. The concentrated phosphorus fertilizer according to claim 19 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

21. The concentrated phosphorus fertilizer according to claim 19 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

22. The concentrated phosphorus fertilizer according to claim 19 , wherein said organic acid is citric acid.

23. The concentrated phosphorus fertilizer according to claim 4 , wherein said mixing further comprises an organic acid concentrated phosphorus fertilizer is prepared by a process comprising: mixing said base, said phosphorous source, and an organic acid, thereby forming said concentrated phosphorus fertilizer.

24. The concentrated phosphorus fertilizer according to claim 23 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

25. The concentrated phosphorus fertilizer according to claim 23 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

26. The concentrated phosphorus fertilizer according to claim 23 , wherein said organic acid is citric acid.

27. A concentrated phosphorus fertilizer comprising a multiply buffered composition, such that when said multiply buffered composition concentrated phosphorous fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part said concentrated phosphorus fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake and wherein said concentrated phosphorus fertilizer is buffered and analyzes to about 0.30 kg/L P 2 O 5 or greater
wherein said concentrated phosphorus fertilizer is prepared by a process comprising:
mixing a first buffer system and a second buffer system, wherein said first buffer system comprises a phosphorous source and wherein said second buffer system comprises a member selected from the group consisting of an organic acid, a salt of an organic acid and combinations thereof,

thereby forming said concentrated phosphorus fertilizer which analyzes to about 0.30 kg/L P 2 O 5 or greater.

28. The concentrated phosphorus fertilizer according to claim 27 , wherein said phosphorous source is a member selected from the group consisting of a phosphorous-containing acid, salt of a phosphorous-containing acid and combinations thereof.

29. The concentrated phosphorus fertilizer according to claim 27 , wherein said about 0.30 kg/L P 2 O 5 or greater is from about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

30. The concentrated phosphorus fertilizer according to claim 27 , wherein the quantity of said phosphorous source is sufficient so that said concentrated phosphorus fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

31. The concentrated phosphorus fertilizer according to claim 28 , wherein said phosphorous-containing acid is a member selected from the group consisting of phosphorous acid, hypophosphorous acid, polyphosphorous acid, polyhypophosphorous acid and combinations thereof.

32. The concentrated phosphorus fertilizer according to claim 27 , wherein said concentrated phosphorus fertilizer has a pH of about 5.0 to about 7.0.

33. The concentrated phosphorus fertilizer according to claim 24 , wherein said concentrated phosphorus fertilizer has a pH of about 5.5 to about 6.5.

34. The concentrated phosphorus fertilizer according to claim 27 , wherein said concentrated phosphorus fertilizer is essentially clear and devoid of precipitate.

35. The concentrated phosphorus fertilizer according to claim 27 , further comprising a plant nutrient, wherein said plant nutrient is a member selected from the group consisting of nitrogen, potassium, sulfur, calcium, magnesium, boron, iron, manganese, molybdenum, zinc, ammonia and combinations thereof.

36. The concentrated phosphorus fertilizer according to claim 27 , wherein said phosphorous source is a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof.

37. The concentrated phosphorus fertilizer according to claim 27 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

38. The concentrated phosphorus fertilizer according to claim 27 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

39. The concentrated phosphorus fertilizer according to claim 27 , wherein said organic acid is citric acid.

40. The concentrated phosphorus fertilizer according to claim 30 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

41. The concentrated phosphorus fertilizer according to claim 30 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

42. The concentrated phosphorus fertilizer according to claim 30 , wherein said organic acid is citric acid.

43. A concentrated phosphorus fertilizer comprising a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof, such that when said concentrated phosphorus fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part said concentrated phosphorus fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake, and wherein said concentrated phosphorus fertilizer is buffered and analyzes to about 0.30 kg/L P 2 O 5 or greater
wherein said concentrated phosphorus fertilizer is prepared by a process comprising:
mixing a base and a phosphorous source, wherein said phosphorous source is a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof,

thereby forming said concentrated phosphorus fertilizer which analyzes to about 0.30 kg/L P 2 O 5 or greater.

44. The concentrated phosphorus fertilizer according to claim 43 , wherein said about 0.30 kg/L P 2 O 5 or greater is from about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

45. The concentrated phosphorus fertilizer according to claim 43 , wherein the quantity of said phosphorous source is sufficient so that said concentrated phosphorus fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

46. The concentrated phosphorus fertilizer according to claim 43 , wherein said phosphorous-containing acid is a member selected from the group consisting of phosphorous acid, hypophosphorous acid, polyphosphorous acid, polyhypophosphorous acid and combinations thereof.

47. The concentrated phosphorus fertilizer according to claim 43 , wherein said concentrated phosphorus fertilizer has a pH of about 5.0 to about 7.0.

48. The concentrated phosphorus fertilizer according to claim 47 , wherein said concentrated phosphorus fertilizer has a pH of about 5.5 to about 6.5.

49. The concentrated phosphorus fertilizer according to claim 43 , wherein said concentrated phosphorus fertilizer is essentially clear and devoid of precipitate.

50. The concentrated phosphorus fertilizer according to claim 43 , further comprising a plant nutrient, wherein said plant nutrient is a member selected from the group consisting of nitrogen, potassium, sulfur, calcium, magnesium, boron, iron, manganese, molybdenum, zinc, ammonia and combinations thereof.

51. The concentrated phosphorus fertilizer according to claim 43 , further comprising an organic acid.

52. The concentrated phosphorus fertilizer according to claim 43 51, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

53. The concentrated phosphorus fertilizer according to claim 43 51, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

54. The concentrated phosphorus fertilizer according to claim 43 51, wherein said organic acid is citric acid.

55. The concentrated phosphorus fertilizer according to claim 45 , further comprising an organic acid.

56. The concentrated phosphorus fertilizer according to claim 45 55, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

57. The concentrated phosphorus fertilizer according to claim 45 55, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

58. The concentrated phosphorus fertilizer according to claim 45 55, wherein said organic acid is citric acid.

59. The concentrated phosphorus fertilizer according to claim 43 , wherein said mixing further comprises an organic acid concentrated phosphorus fertilizer is prepared by a process comprising: mixing said base, said phosphorous source, and an organic acid, thereby forming said concentrated phosphorus fertilizer.

60. The concentrated phosphorus fertilizer according to claim 59 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

61. The concentrated phosphorus fertilizer according to claim 59 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

62. The concentrated phosphorus fertilizer according to claim 59 , wherein said organic acid is citric acid.

63. The concentrated phosphorus fertilizer according to claim 45 , wherein said mixing further comprises an organic acid concentrated phosphorus fertilizer is prepared by a process comprising: mixing said base, said phosphorous source, and an organic acid, thereby forming said concentrated phosphorus fertilizer.

64. The concentrated phosphorus fertilizer according to claim 63 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

65. The concentrated phosphorus fertilizer according to claim 63 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

66. The concentrated phosphorus fertilizer according to claim 63 , wherein said organic acid is citric acid.

67. A concentrated phosphite-containing fertilizer comprising a phosphorous source, such that when said concentrated phosphite-containing fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part concentrated phosphite-containing fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake and wherein said concentrated phosphite-containing fertilizer is buffered and analyzes to about 0.30 kg/L P 2 O 5 or greater
wherein said concentrated phosphite-containing fertilizer is prepared by a process comprising:
mixing a base and a phosphorous source,

thereby forming said concentrated phosphite-containing fertilizer which analyzes to about 0.30 kg/L P 2 O 5 or greater.

68. The concentrated phosphite-containing fertilizer according to claim 67 , wherein said phosphorous source is a member selected from the group consisting of a phosphorous-containing acid, a salt of a phosphorous-containing acid, and combinations thereof.

69. The concentrated phosphite-containing fertilizer according to claim 67 , wherein said about 0.30 kg/L P 2 O 5 or greater is from about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

70. The concentrated phosphite-containing fertilizer according to claim 67 , wherein the quantity of said phosphorous source is sufficient so that said concentrated phosphite-containing fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

71. The concentrated phosphite-containing fertilizer according to claim 67 , wherein said concentrated phosphite-containing fertilizer has a pH of about 5.0 to about 7.0.

72. The concentrated phosphite-containing fertilizer according to claim 71 , wherein said concentrated phosphite-containing fertilizer has a pH of about 5.5 to about 6.5.

73. The concentrated phosphite-containing fertilizer according to claim 67 , wherein said concentrated phosphite-containing fertilizer is essentially clear and devoid of precipitate.

74. The concentrated phosphite-containing fertilizer according to claim 67 , further comprising a plant nutrient, wherein said plant nutrient is a member selected from the group consisting of nitrogen, potassium, sulfur, calcium, magnesium, boron, iron, manganese, molybdenum, zinc, ammonia and combinations thereof.

75. The concentrated phosphite-containing fertilizer according to claim 67 , wherein said phosphorous source is a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof.

76. The concentrated phosphorus fertilizer according to claim 67 , further comprising an organic acid.

77. The concentrated phosphorus fertilizer according to claim 76 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

78. The concentrated phosphorus fertilizer according to claim 76 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

79. The concentrated phosphorus fertilizer according to claim 76 , wherein said organic acid is citric acid.

80. The concentrated phosphorus fertilizer according to claim 70 , further comprising an organic acid.

81. The concentrated phosphorus fertilizer according to claim 80 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

82. The concentrated phosphorus fertilizer according to claim 80 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

83. The concentrated phosphorus fertilizer according to claim 80 , wherein said organic acid is citric acid.

84. The concentrated phosphorus fertilizer according to claim 67 , wherein said mixing further comprises an organic acid concentrated phosphite-containing fertilizer is prepared by a process comprising: mixing said base, said phosphorous source and an organic acid, thereby forming said concentrated phosphite-containing fertilizer.

85. The concentrated phosphorus fertilizer according to claim 84 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

86. The concentrated phosphorus fertilizer according to claim 84 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

87. The concentrated phosphorus fertilizer according to claim 84 , wherein said organic acid is citric acid.

88. The concentrated phosphorus fertilizer according to claim 70 , wherein said mixing further comprises an organic acid concentrated phosphite-containing fertilizer is prepared by a process comprising: mixing said base, said phosphorous source and an organic acid, thereby forming said concentrated phosphite-containing fertilizer.

89. The concentrated phosphorus fertilizer according to claim 88 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

90. The concentrated phosphorus fertilizer according to claim 88 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

91. The concentrated phosphorus fertilizer according to claim 88 , wherein said organic acid is citric acid.

92. A concentrated phosphorus fertilizer comprising a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof, such that when said concentrated phosphorus fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part said concentrated phosphorus fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake, and wherein said concentrated phosphorus fertilizer is buffered and analyzes to about 0.30 kg/L P 2 O 5 or greater
wherein said concentrated phosphorus fertilizer is prepared by a process comprising:
dissolving a salt of a phosphorous-containing acid in water,

thereby forming said concentrated phosphorus fertilizer which analyzes to about 0.30 kg/L P 2 O 5 or greater.

93. The concentrated phosphorus fertilizer according to claim 92 , wherein said about 0.30 kg/L P 2 O 5 or greater is from about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

94. The concentrated phosphorus fertilizer according to claim 92 , wherein the quantity of said member is sufficient so that said concentrated phosphorus fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

95. The concentrated phosphorus fertilizer according to claim 92 , wherein the phosphorous-containing acid in said salt of a phosphorous-containing acid is a member selected from the group consisting of phosphorous acid, hypophosphorous acid, polyphosphorous acid, polyhypophosphorous acid and combinations thereof.

96. The concentrated phosphorus fertilizer according to claim 92 , wherein said concentrated phosphorus fertilizer has a pH of about 5.0 to about 7.0.

97. The concentrated phosphorus fertilizer according to claim 96 , wherein said concentrated phosphorus fertilizer has a pH of about 5.5 to about 6.5.

98. The concentrated phosphorus fertilizer according to claim 92 , wherein said concentrated phosphorus fertilizer is essentially clear and devoid of precipitate.

99. The concentrated phosphorus fertilizer according to claim 92 , further comprising a plant nutrient, wherein said plant nutrient is a member selected from the group consisting of m nitrogen, potassium, sulfur, calcium, magnesium, boron, iron, manganese, molybdenum, zinc, ammonia and combinations thereof.

100. The concentrated phosphorus fertilizer according to claim 92 , further comprising an organic acid.

101. The concentrated phosphorus fertilizer according to claim 100 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

102. The concentrated phosphorus fertilizer according to claim 100 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

103. The concentrated phosphorus fertilizer according to claim 100 , wherein said organic acid is citric acid.

104. The concentrated phosphorus fertilizer according to claim 93 , further comprising an organic acid.

105. The concentrated phosphorus fertilizer according to claim 104 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

106. The concentrated phosphorus fertilizer according to claim 104 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

107. The concentrated phosphorus fertilizer according to claim 104 , wherein said organic acid is citric acid.

108. The concentrated phosphorus fertilizer according to claim 94 , further comprising an organic acid.

109. The concentrated phosphorus fertilizer according to claim 108 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

110. The concentrated phosphorus fertilizer according to claim 108 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

111. The concentrated phosphorus fertilizer according to claim 108 , wherein said organic acid is citric acid.

112. The concentrated phosphorus fertilizer according to claim 92 , wherein said dissolving further comprises an organic acid concentrated phosphorus fertilizer is prepared by a process comprising: dissolving said salt of said phosphorous-containing acid in water with an organic acid, thereby forming said concentrated phosphorus fertilizer.

113. The concentrated phosphorus fertilizer according to claim 112 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

114. The concentrated phosphorus fertilizer according to claim 112 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

115. The concentrated phosphorus fertilizer according to claim 112 , wherein said organic acid is citric acid.

116. The concentrated phosphorus fertilizer according to claim 93 , wherein said dissolving further comprises an organic acid concentrated phosphorus fertilizer is prepared by a process comprising: dissolving said salt of said phosphorous-containing acid in water with an organic acid, thereby forming said concentrated phosphorus fertilizer.

117. The concentrated phosphorus fertilizer according to claim 116 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

118. The concentrated phosphorus fertilizer according to claim 116 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

119. The concentrated phosphorus fertilizer according to claim 116 , wherein said organic acid is citric acid.

120. The concentrated phosphorus fertilizer according to claim 94 , wherein said dissolving further comprises an organic acid concentrated phosphorus fertilizer is prepared by a process comprising: dissolving said salt of said phosphorous-containing acid in water with an organic acid, thereby forming said concentrated phosphorus fertilizer.

121. The concentrated phosphorus fertilizer according to claim 120 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

122. The concentrated phosphorus fertilizer according to claim 120 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

123. The concentrated phosphorus fertilizer according to claim 120 , wherein said organic acid is citric acid.

124. A concentrated phosphorus fertilizer, such that when said concentrated phosphorus fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part said concentrated phosphorus fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake, and wherein said concentrated phosphorus fertilizer is buffered and analyzes to about 0.30 kg/L P 2 O 5 or greater
wherein said concentrated phosphorus fertilizer is prepared by a process comprising:
dissolving a phosphorous source in water,

thereby forming said concentrated phosphorus fertilizer which analyzes to about 0.30 kg/L P 2 O 5 or greater.

125. The concentrated phosphorus fertilizer according to claim 124 , wherein said phosphorous source is a member selected from the group consisting of a phosphorous-containing acid, a salt of a phosphorous-containing acid, and combinations thereof.

126. The concentrated phosphorus fertilizer according to claim 124 , wherein said about 0.30 kg/L P 2 O 5 or greater is from about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

127. The concentrated phosphorus fertilizer according to claim 124 , wherein the quantity of said phosphorous source is sufficient so that said concentrated phosphorus fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

128. The concentrated phosphorus fertilizer according to claim 125 , wherein said phosphorous-containing acid is a member selected from the group consisting of phosphorous acid, hypophosphorous acid, polyphosphorous acid, polyhypophosphorous acid and combinations thereof.

129. The concentrated phosphorus fertilizer according to claim 124 , wherein said concentrated phosphorus fertilizer has a pH of about 5.0 to about 7.0.

130. The concentrated phosphorus fertilizer according to claim 129 , wherein said concentrated phosphorus fertilizer has a pH of about 5.5 to about 6.5.

131. The concentrated phosphorus fertilizer according to claim 124 , wherein said concentrated phosphorus fertilizer is essentially clear and devoid of precipitate.

132. The concentrated phosphorus fertilizer according to claim 124 , further comprising a plant nutrient, wherein said plant nutrient is a member selected from the group consisting of nitrogen, potassium, sulfur, calcium, magnesium, boron, iron, manganese, molybdenum, zinc, ammonia and combinations thereof.

133. The concentrated phosphorus fertilizer according to claim 124 , wherein said phosphorous source is a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof.

134. The concentrated phosphorus fertilizer according to claim 124 , further comprising an organic acid.

135. The concentrated phosphorus fertilizer according to claim 134 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

136. The concentrated phosphorus fertilizer according to claim 134 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

137. The concentrated phosphorus fertilizer according to claim 134 , wherein said organic acid is citric acid.

138. The concentrated phosphorus fertilizer according to claim 126 , further comprising an organic acid.

139. The concentrated phosphorus fertilizer according to claim 138 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

140. The concentrated phosphorus fertilizer according to claim 138 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

141. The concentrated phosphorus fertilizer according to claim 138 , wherein said organic acid is citric acid.

142. The concentrated phosphorus fertilizer according to claim 127 , further comprising an organic acid.

143. The concentrated phosphorus fertilizer according to claim 142 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

144. The concentrated phosphorus fertilizer according to claim 142 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

145. The concentrated phosphorus fertilizer according to claim 142 , wherein said organic acid is citric acid.

146. The concentrated phosphorus fertilizer according to claim 124 , wherein said dissolving further comprises an organic acid concentrated phosphorus fertilizer is prepared by a process comprising: dissolving said phosphorous source in water with an organic acid, thereby forming said concentrated phosphorus fertilizer.

147. The concentrated phosphorus fertilizer according to claim 146 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

148. The concentrated phosphorus fertilizer according to claim 146 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

149. The concentrated phosphorus fertilizer according to claim 146 , wherein said organic acid is citric acid.

150. The concentrated phosphorus fertilizer according to claim 126 , wherein said dissolving further comprises an organic acid concentrated phosphorus fertilizer is prepared by a process comprising: dissolving said phosphorous source in water with an organic acid, thereby forming said concentrated phosphorus fertilizer.

151. The concentrated phosphorus fertilizer according to claim 150 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

152. The concentrated phosphorus fertilizer according to claim 150 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

153. The concentrated phosphorus fertilizer according to claim 150 , wherein said organic acid is citric acid.

154. The concentrated phosphorus fertilizer according to claim 127 , wherein said dissolving further comprises an organic acid concentrated phosphorus fertilizer is prepared by a process comprising: dissolving said phosphorous source in water with an organic acid, thereby forming said concentrated phosphorus fertilizer.

155. The concentrated phosphorus fertilizer according to claim 154 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

156. The concentrated phosphorus fertilizer according to claim 154 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

157. The concentrated phosphorus fertilizer according to claim 154 , wherein said organic acid is citric acid.

158. A concentrated phosphorus fertilizer for irrigation application, wherein said concentrated phosphorus fertilizer is buffered, has a pH of less than about 2.5, analyzes to about 0.30 kg/L P 2 O 5 or greater, and is prepared by a process comprising:
mixing a base and a phosphorous source,
thereby forming said concentrated phosphorus fertilizer which analyzes to about 0.30 kg/L P 2 O 5 or greater.

159. The concentrated phosphorus fertilizer according to claim 158 , wherein said phosphorous source is a member selected from the group consisting of a phosphorous-containing acid, a salt of a phosphorous-containing acid, and combinations thereof.

160. The concentrated phosphorus fertilizer according to claim 158 , wherein said about 0.30 kg/L P 2 O 5 or greater is from about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

161. The concentrated phosphorus fertilizer according to claim 158 , wherein the quantity of said phosphorous source is sufficient so that said concentrated phosphorus fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

162. The concentrated phosphorus fertilizer according to claim 159 , wherein said phosphorous-containing acid is a member selected from the group consisting of phosphorous acid, hypophosphorous acid, polyphosphorous acid, polyhypophosphorous acid and combinations thereof.

163. The concentrated phosphorus fertilizer according to claim 158 , wherein said pH is less than about 1.5.

164. The concentrated phosphorus fertilizer according to claim 158 , further comprising an organic acid.

165. The concentrated phosphorus fertilizer according to claim 164 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

166. The concentrated phosphorus fertilizer according to claim 164 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

167. The concentrated phosphorus fertilizer according to claim 164 , wherein said organic acid is citric acid.

168. The concentrated phosphorus fertilizer according to claim 161 , further comprising an organic acid.

169. The concentrated phosphorus fertilizer according to claim 168 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

170. The concentrated phosphorus fertilizer according to claim 169 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

171. The concentrated phosphorus fertilizer according to claim 170 , wherein said organic acid is citric acid.

172. The concentrated phosphorus fertilizer according to claim 158 , wherein said mixing further comprises an organic acid concentrated phosphorus fertilizer is prepared by a process comprising: mixing said base, said phosphorous source, and an organic acid, thereby forming said concentrated phosphorus fertilizer.

173. The concentrated phosphorus fertilizer according to claim 172 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

174. The concentrated phosphorus fertilizer according to claim 172 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

175. The concentrated phosphorus fertilizer according to claim 172 , wherein said organic acid is citric acid.

176. The concentrated phosphorus fertilizer according to claim 161 , wherein said mixing further comprises an organic acid concentrated phosphorus fertilizer is prepared by a process comprising: mixing said base, said phosphorous source, and an organic acid, thereby forming said concentrated phosphorus fertilizer.

177. The concentrated phosphorus fertilizer according to claim 176 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

178. The concentrated phosphorus fertilizer according to claim 176 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

179. The concentrated phosphorus fertilizer according to claim 176 , wherein said organic acid is citric acid.

180. A concentrated phosphorus fertilizer, such that when said concentrated phosphorus fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part said concentrated phosphorus fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake, and wherein said concentrated phosphorus fertilizer is buffered
wherein said concentrated phosphorus fertilizer is prepared by a process comprising:
mixing a base and a phosphorous source and an organic acid source,
wherein said organic acid source is a member selected from the group consisting of a dicarboxylic acid, a tricarboxylic acid, a salt thereof and combinations thereof;

thereby forming said concentrated phosphorus fertilizer.

181. The concentrated phosphorus fertilizer of claim 180 ,
wherein said organic acid source is a member selected from the group consisting of pyruvic acid, succinic acid, fumaric acid, malic acid, formic acid, oxaloacetic acid, cis-aconitic acid, citric acid, isocitric acid, α-ketoglutaric acid, a salt thereof, and combinations thereof.

182. The concentrated phosphorus fertilizer of claim 181 ,
wherein said organic acid source is a member selected from the group consisting of citric acid, a citric acid salt, and combinations thereof.

183. A concentrated phosphorus fertilizer comprising a multiply buffered composition, such that when said multiply buffered composition concentrated phosphorus fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part said concentrated phosphorus fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake and wherein said concentrated phosphorus fertilizer is buffered
wherein said concentrated phosphorus fertilizer is prepared by a process comprising:
mixing a first buffer system and a second buffer system, wherein said first buffer system comprises a phosphorous source and wherein said second buffer system comprises a member selected from the group consisting of an organic acid, a salt of an organic acid and combinations thereof,
wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid, a tricarboxylic acid, and combinations thereof;

thereby forming said concentrated phosphorus fertilizer.

184. The concentrated phosphorus fertilizer of claim 183 ,
wherein said organic acid is a member selected from the group consisting of pyruvic acid, succinic acid, fumaric acid, malic acid, formic acid, oxaloacetic acid, cisaconitic acid, citric acid, isocitric acid, α-ketoglutaric acid and combinations thereof.

185. The concentrated phosphorus fertilizer of claim 184 ,
wherein said organic acid is citric acid.

186. A concentrated phosphorus fertilizer comprising a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof, such that when said concentrated phosphorus fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part said concentrated phosphorus fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake, and wherein said concentrated phosphorus fertilizer is buffered
wherein said concentrated phosphorus fertilizer is prepared by a process comprising:
mixing a base and a phosphorous source and an organic acid source, wherein said phosphorous source is a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof, and
wherein said organic acid source is a member selected from the group consisting of a dicarboxylic acid, a tricarboxylic acid, a salt thereof and combinations thereof;

thereby forming said concentrated phosphorus fertilizer.

187. The concentrated phosphorus fertilizer of claim 186 ,
wherein said organic acid source is a member selected from the group consisting of pyruvic acid, succinic acid, fumaric acid, malic acid, formic acid, oxaloacetic acid, cis-aconitic acid, citric acid, isocitric acid, α-ketoglutaric acid, a salt thereof, and combinations thereof.

188. The concentrated phosphorus fertilizer of claim 187 ,
wherein said organic acid source is a member selected from the group consisting of citric acid, a citric acid salt, and combinations thereof.

189. A concentrated phosphite-containing fertilizer comprising a phosphorous source, such that when said concentrated phosphite-containing fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part concentrated phosphite-containing fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake and wherein said concentrated phosphite-containing fertilizer is buffered
wherein said concentrated phosphite-containing fertilizer is prepared by a process comprising:
mixing a base and a phosphorous source and an organic acid source
wherein said organic acid source is a member selected from the group consisting of a dicarboxylic acid, a tricarboxylic acid, a salt thereof and combinations thereof;

thereby forming said concentrated phosphite-containing fertilizer.

190. The concentrated phosphorus fertilizer of claim 189 ,
wherein said organic acid source is a member selected from the group consisting of pyruvic acid, succinic acid, fumaric acid, malic acid, formic acid, oxaloacetic acid, cis-aconitic acid, citric acid, isocitric acid, α-ketoglutaric acid, a salt thereof, and combinations thereof.

191. The concentrated phosphorus fertilizer of claim 190 ,
wherein said organic acid source is a member selected from the group consisting of citric acid, a citric acid salt, and combinations thereof.

192. A concentrated phosphorus fertilizer comprising a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof, such that when said concentrated phosphorus fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part said concentrated phosphorus fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake, and wherein said concentrated phosphorus fertilizer is buffered
wherein said concentrated phosphorus fertilizer is prepared by a process comprising:
dissolving an organic acid source and a salt of a phosphorous-containing acid in water,
wherein said organic acid source is a member selected from the group consisting of a dicarboxylic acid, a tricarboxylic acid, a salt thereof and combinations thereof;

thereby forming said concentrated phosphorus fertilizer.

193. The concentrated phosphorus fertilizer of claim 192 ,
wherein said organic acid source is a member selected from the group consisting of pyruvic acid, succinic acid, fumaric acid, malic acid, formic acid, oxaloacetic acid, cis-aconitic acid, citric acid, isocitric acid, α-ketoglutaric acid, a salt thereof, and combinations thereof.

194. The concentrated phosphorus fertilizer of claim 193 ,
wherein said organic acid source is a member selected from the group consisting of citric acid, a citric acid salt, and combinations thereof.

195. A concentrated phosphorus fertilizer, such that when said concentrated phosphorus fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part said concentrated phosphorus fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake, and wherein said concentrated phosphorus fertilizer is buffered
wherein said concentrated phosphorus fertilizer is prepared by a process comprising:
dissolving an organic acid source and a phosphorous source in water,
wherein said organic acid source is a member selected from the group consisting of a dicarboxylic acid, a tricarboxylic acid, a salt thereof and combinations thereof;

thereby forming said concentrated phosphorus fertilizer.

196. The concentrated phosphorus fertilizer of claim 195 ,
wherein said organic acid source is a member selected from the group consisting of pyruvic acid, succinic acid, fumaric acid, malic acid, formic acid, oxaloacetic acid, cis-aconitic acid, citric acid, isocitric acid, α-ketoglutaric acid, a salt thereof, and combinations thereof.

197. The concentrated phosphorus fertilizer of claim 196 ,
wherein said organic acid source is a member selected from the group consisting of citric acid, a citric acid salt, and combinations thereof.

198. A concentrated phosphorus fertilizer for irrigation application, wherein said concentrated phosphorus fertilizer is buffered, has a pH of less than about 2.5, and is prepared by a process comprising:
mixing a base and a phosphorous source and an organic acid source,
wherein said organic acid source is a member selected from the group consisting of a dicarboxylic acid, a tricarboxylic acid, a salt thereof and combinations thereof;

thereby forming said concentrated phosphorus fertilizer.

199. The concentrated phosphorus fertilizer of claim 198 ,
wherein said organic acid source is a member selected from the group consisting of pyruvic acid, succinic acid, fumaric acid, malic acid, formic acid, oxaloacetic acid, cis-aconitic acid, citric acid, isocitric acid, α-ketoglutaric acid, a salt thereof, and combinations thereof.

200. The concentrated phosphorus fertilizer of claim 199 ,
wherein said organic acid source is a member selected from the group consisting of citric acid, a citric acid salt, and combinations thereof.

201. A concentrated phosphorus fertilizer, wherein said phosphorus analyzes to about 0.30 kg/L P 2 O 5 or greater, such that when said concentrated phosphorus fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part said concentrated phosphorus fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake, and wherein said concentrated phosphorus fertilizer is buffered and is prepared by a process comprising:
mixing a base and a phosphorous source, thereby forming said concentrated phosphorus fertilizer.

202. The concentrated phosphorus fertilizer according to claim 201, wherein said phosphorous source is a member selected from the group consisting of a phosphorous-containing acid, a salt of a phosphorous-containing acid, and combinations thereof.

203. The concentrated phosphorus fertilizer according to claim 201, wherein said about 0.30 kg/L P 2 O 5 or greater is from about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

204. The concentrated phosphorus fertilizer according to claim 201, wherein the quantity of said phosphorous source is sufficient so that said concentrated phosphorus fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

205. The concentrated phosphorus fertilizer according to claim 202, wherein said phosphorous-containing acid is a member selected from the group consisting of phosphorous acid, hypophosphorous acid, polphosphorous acid, polyhypophosphorous acid and combinations thereof.

206. The concentrated phosphorus fertilizer according to claim 201, wherein said concentrated phosphorus fertilizer has a pH of about 5.0 to about 7.0.

207. The concentrated phosphorus fertilizer according to claim 206, wherein said concentrated phosphorus fertilizer has a pH of about 5.5 to about 6.5.

208. The concentrated phosphorus fertilizer according to claim 201, wherein said concentrated phosphorus fertilizer is essentially clear and devoid of precipitate.

209. The concentrated phosphorus fertilizer according to claim 201, further comprising a plant nutrient, wherein said plant nutrient is a member selected from the group consisting of nitrogen, potassium, sulfur, calcium, magnesium, boron, iron, manganese, molybdenum, zinc, ammonia and combinations thereof.

210. The concentrated phosphorus fertilizer according to claim 201, wherein said phosphorous source is a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof.

211. The concentrated phosphorus fertilizer according to claim 201, further comprising an organic acid.

212. The concentrated phosphorus fertilizer according to claim 211, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

213. The concentrated phosphorus fertilizer according to claim 211, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

214. The concentrated phosphorus fertilizer according to claim 211, wherein said organic acid is citric acid.

215. The concentrated phosphorus fertilizer according to claim 204, further comprising an organic acid.

216. The concentrated phosphorus fertilizer according to claim 215, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

217. The concentrated phosphorus fertilizer according to claim 215, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

218. The concentrated phosphorus fertilizer according to claim 215, wherein said organic acid is citric acid.

219. The concentrated phosphorus fertilizer according to claim 201, wherein said concentrated phosphorus fertilizer is prepared by a process comprising: mixing said base, said phosphorous source, and an organic acid, thereby forming said concentrated phosphorus fertilizer.

220. The concentrated phosphorus fertilizer according to claim 219, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

221. The concentrated phosphorus fertilizer according to claim 219, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

222. The concentrated phosphorus fertilizer according to claim 219, wherein said organic acid is citric acid.

223. The concentrated phosphorus fertilizer according to claim 204, wherein said concentrated phosphorus fertilizer is prepared by a process comprising: mixing said base, said phosphorous source, and an organic acid, thereby forming said concentrated phosphorus fertilizer.

224. The concentrated phosphorus fertilizer according to claim 223, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

225. The concentrated phosphorus fertilizer according to claim 223, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

226. The concentrated phosphorus fertilizer according to claim 223, wherein said organic acid is citric acid.

227. A concentrated phosphite-containing fertilizer comprising a phosphorous source, such that when said concentrated phosphite-containing fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part concentrated phosphite-containing fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake, wherein said concentrated phosphite-containing fertilizer is buffered and wherein said phosphorus analyzes to about 0.30 kg/L P 2 O 5 or greater,
wherein said concentrated phosphite-containing fertilizer is prepared by a process comprising:
mixing a base and a phosphorous source,
thereby forming said concentrated phosphite-containing fertilizer.

228. The concentrated phosphite-containing fertilizer according to claim 227, wherein said phosphorous source is a member selected from the group consisting of a phosphorous-containing acid, a salt of a phosphorous-containing acid, and combinations thereof.

229. The concentrated phosphite-containing fertilizer according to claim 227, wherein said about 0.30 kg/L P 2 O 5 or greater is from about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

230. The concentrated phosphite-containing fertilizer according to claim 227, wherein the quantity of said phosphorous source is sufficient so that said concentrated phosphite-containing fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

231. The concentrated phosphite-containing fertilizer according to claim 227, wherein said concentrated phosphite-containing fertilizer has a pH of about 5.0 to about 7.0.

232. The concentrated phosphite-containing fertilizer according to claim 231, wherein said concentrated phosphite-containing fertilizer has a pH of about 5.5 to about 6.5.

233. The concentrated phosphite-containing fertilizer according to claim 227, wherein said concentrated phosphite-containing fertilizer is essentially clear and devoid of precipitate.

234. The concentrated phosphite-containing fertilizer according to claim 227, further comprising a plant nutrient, wherein said plant nutrient is a member selected from the group consisting of nitrogen, potassium, sulfur, calcium, magnesium, boron, iron, manganese, molybdenum, zinc, ammonia and combinations thereof.

235. The concentrated phosphite-containing fertilizer according to claim 227, wherein said phosphorous source is a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof.

236. The concentrated phosphorus fertilizer according to claim 227, further comprising an organic acid.

237. The concentrated phosphorus fertilizer according to claim 236, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

238. The concentrated phosphorus fertilizer according to claim 236, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

239. The concentrated phosphorus fertilizer according to claim 236, wherein said organic acid is citric acid.

240. The concentrated phosphorus fertilizer according to claim 230, further comprising an organic acid.

241. The concentrated phosphorus fertilizer according to claim 240, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

242. The concentrated phosphorus fertilizer according to claim 240, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

243. The concentrated phosphorus fertilizer according to claim 240, wherein said organic acid is citric acid.

244. The concentrated phosphorus fertilizer according to claim 227, wherein said concentrated phosphite-containing fertilizer is prepared by a process comprising mixing said base, said phosphorous source and an organic acid, thereby forming said concentrated phosphite-containing fertilizer.

245. The concentrated phosphorus fertilizer according to claim 244, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

246. The concentrated phosphorus fertilizer according to claim 244, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

247. The concentrated phosphorus fertilizer according to claim 244, wherein said organic acid is citric acid.

248. The concentrated phosphorus fertilizer according to claim 230, wherein said concentrated phosphite-containing fertilizer is prepared by a process comprising: mixing said base, said phosphorous source and an organic acid, thereby forming said concentrated phosphite-containing fertilizer.

249. The concentrated phosphorus fertilizer according to claim 248, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

250. The concentrated phosphorus fertilizer according to claim 248, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

251. The concentrated phosphorus fertilizer according to claim 248, wherein said organic acid is citric acid.

252. A concentrated phosphorus fertilizer, wherein said phosphorus analyzes to about 0.30 kg/L P 2 O 5 or greater, such that when said concentrated phosphorus fertilizer is diluted with water having a pH as low as about 6.5 at a ratio of about 1 part said concentrated phosphorus fertilizer to about 40 parts water, there is formed a substantially fully solubilized use-dilution fertilizer having a foliage acceptable pH for phosphorus uptake, wherein said concentrated phosphorus fertilizer is buffered and is prepared by a process comprising:
dissolving a phosphorous source in water,
thereby forming said concentrated phosphorus fertilizer.

253. The concentrated phosphorus fertilizer according to claim 252, wherein said phosphorous source is a member selected from the group consisting of a phosphorous-containing acid, a salt of a phosphorous-containing acid, and combinations thereof.

254. The concentrated phosphorus fertilizer according to claim 252, wherein said about 0.30 kg/L P 2 O 5 or greater is from about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

255. The concentrated phosphorus fertilizer according to claim 252, wherein the quantity of said phosphorous source is sufficient so that said concentrated phosphorus fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

256. The concentrated phosphorus fertilizer according to claim 253, wherein said phosphorous-containing acid is a member selected from the group consisting of phosphorous acid, hypophosphorous acid, polyphosphorous acid, polyhypophosphorous acid and combinations thereof.

257. The concentrated phosphorus fertilizer according to claim 252, wherein said concentrated phosphorus fertilizer has a pH of about 5.0 to about 7.0.

258. The concentrated phosphorus fertilizer according to claim 257, wherein said concentrated phosphorus fertilizer has a pH of about 5.5 to about 6.5.

259. The concentrated phosphorus fertilizer according to claim 252, wherein said concentrated phosphorus fertilizer is essentially clear and devoid of precipitate.

260. The concentrated phosphorus fertilizer according to claim 252, further comprising a plant nutrient, wherein said plant nutrient is a member selected from the group consisting of nitrogen, potassium, sulfur, calcium, magnesium, boron, iron, manganese, molybdenum, zinc, ammonia and combinations thereof.

261. The concentrated phosphorus fertilizer according to claim 252, wherein said phosphorous source is a member selected from the group consisting of H 3 PO 3 , H 4 P 2 O 5 , H 3 P 2 O 5 − , H 2 P 2 O 5 2− , HPO 3 2− , H 2 PO 3 − , H 2 PO 2 − and combinations thereof.

262. The concentrated phosphorus fertilizer according to claim 252, further comprising an organic acid.

263. The concentrated phosphorus fertilizer according to claim 262, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

264. The concentrated phosphorus fertilizer according to claim 262, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

265. The concentrated phosphorus fertilizer according to claim 262, wherein said organic acid is citric acid.

266. The concentrated phosphorus fertilizer according to claim 254, further comprising an organic acid.

267. The concentrated phosphorus fertilizer according to claim 266, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

268. The concentrated phosphorus fertilizer according to claim 266, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

269. The concentrated phosphorus fertilizer according to claim 266, wherein said organic acid is citric acid.

270. The concentrated phosphorus fertilizer according to claim 255, further comprising an organic acid.

271. The concentrated phosphorus fertilizer according to claim 270, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

272. The concentrated phosphorus fertilizer according to claim 270, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

273. The concentrated phosphorus fertilizer according to claim 270, wherein said organic acid is citric acid.

274. The concentrated phosphorus fertilizer according to claim 252, wherein said concentrated phosphorus fertilizer is prepared by a process comprising: dissolving said phosphorous source in water with an organic acid, thereby forming said concentrated phosphorus fertilizer.

275. The concentrated phosphorus fertilizer according to claim 274, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

276. The concentrated phosphorus fertilizer according to claim 274, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

277. The concentrated phosphorus fertilizer according to claim 274, wherein said organic acid is citric acid.

278. The concentrated phosphorus fertilizer according to claim 254, wherein said concentrated phosphorus fertilizer is prepared by a process comprising: dissolving said phosphorous source in water with an organic acid, thereby forming said concentrated phosphorus fertilizer.

279. The concentrated phosphorus fertilizer according to claim 278, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

280. The concentrated phosphorus fertilizer according to claim 278, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

281. The concentrated phosphorus fertilizer according to claim 278, wherein said organic acid is citric acid.

282. The concentrated phosphorus fertilizer according to claim 255, wherein said concentrated phosphorus fertilizer is prepared by a process comprising: dissolving said phosphorous source in water with an organic acid, thereby forming said concentrated phosphorus fertilizer.

283. The concentrated phosphorus fertilizer according to claim 282, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

284. The concentrated phosphorus fertilizer according to claim 282, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

285. The concentrated phosphorus fertilizer according to claim 282, wherein said organic acid is citric acid.

286. A concentrated phosphorus fertilizer for irrigation application, wherein said phosphorus analyzes to about 0.30 kg/L P 2 O 5 or greater and wherein said concentrated phosphorus fertilizer is buffered, has a pH of less than about 2.5, and is prepared by a process comprising:
mixing a base and a phosphorous source,
thereby forming said concentrated phosphorus fertilizer.

287. The concentrated phosphorus fertilizer according to claim 286, wherein said phosphorous source is a member selected from the group consisting of a phosphorous-containing acid, a salt of a phosphorous-containing acid, and combinations thereof.

288. The concentrated phosphorus fertilizer according to claim 286, wherein said about 0.30 kg/L P 2 O 5 or greater is from about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

289. The concentrated phosphorus fertilizer according to claim 286, wherein the quantity of said phosphorous source is sufficient so that said concentrated phosphorus fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 .

290. The concentrated phosphorus fertilizer according to claim 287, wherein said phosphorous-containing acid is a member selected from the group consisting of phosphorous acid, hypophosphorous acid, polyphosphorous acid, polyhypophosphorous acid and combinations thereof.

291. The concentrated phosphorus fertilizer according to claim 286, wherein said pH is less than about 1.5.

292. The concentrated phosphorus fertilizer according to claim 286, further comprising an organic acid.

293. The concentrated phosphorus fertilizer according to claim 292, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

294. The concentrated phosphorus fertilizer according to claim 292, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

295. The concentrated phosphorus fertilizer according to claim 292, wherein said organic acid is citric acid.

296. The concentrated phosphorus fertilizer according to claim 289, further comprising an organic acid.

297. The concentrated phosphorus fertilizer according to claim 296, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

298. The concentrated phosphorus fertilizer according to claim 297, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

299. The concentrated phosphorus fertilizer according to claim 298, wherein said organic acid is citric acid.

300. The concentrated phosphorus fertilizer according to claim 286, wherein said concentrated phosphorus fertilizer is prepared by a process comprising: mixing said base, said phosphorous source, and an organic acid, thereby forming said concentrated phosphorus fertilizer.

301. The concentrated phosphorus fertilizer according to claim 300, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

302. The concentrated phosphorus fertilizer according to claim 300, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

303. The concentrated phosphorus fertilizer according to claim 300, wherein said organic acid is citric acid.

304. The concentrated phosphorus fertilizer according to claim 289, wherein said concentrated phosphorus fertilizer is prepared by a process comprising: mixing said base, said phosphorous source, and an organic acid, thereby forming said concentrated phosphorus fertilizer.

305. The concentrated phosphorus fertilizer according to claim 304, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid.

306. The concentrated phosphorus fertilizer according to claim 304, wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid.

307. The concentrated phosphorus fertilizer according to claim 304, wherein said organic acid is citric acid.

308. A phosphorus fertilizer buffer concentrate comprising: (i) a salt of a phosphorous acid; and (ii) an organic acid, wherein said buffer concentrate is in a solid form.

309. The buffer concentrate according to claim 308, wherein phosphorus in said buffer concentrate is present in an amount equivalent to about 0.30 kg/L or greater P 2 O 5 .

310. The buffer concentrate according to claim 308, wherein phosphorus in said buffer concentrate is present in an amount equivalent to from about 0.30 kg/L to about 0.40 kg/L P 2 O 5 .

311. The buffer concentrate according to claim 308, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid, a tricarboxylic acid and combinations thereof.

312. The buffer concentrate according to claim 311, wherein said organic acid is citric acid.

313. The buffer concentrate according to claim 308, wherein said organic acid is a vitamin acid.

314. The buffer concentrate according to claim 313, wherein said vitamin acid is selected from the group consisting of ascorbic acid and folic acid.

315. The buffer concentrate according to claim 308, further comprising a plant nutrient, wherein said plant nutrient is a member selected from the group consisting of nitrogen, potassium, sulfur, calcium, magnesium, boron, iron, manganese, molybdenum, zinc, ammonia and combinations thereof.

316. A phosphorus fertilizer buffer concentrate comprising a salt of a phosphorous acid and a salt of an organic acid, wherein said buffer concentrate is in a solid form.

317. The buffer concentrate according to claim 316, wherein phosphorus in said buffer concentrate is present in an amount equivalent to about 0.30 kg/L or greater P 2 O 5 .

318. The buffer concentrate according to claim 316, wherein phosphorus in said buffer concentrate is present in an amount equivalent to from about 0.30 kg/L to about 0.40 kg/L P 2 O 5 .

319. The buffer concentrate according to claim 316, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid, a tricarboxylic acid, and combinations thereof.

320. The buffer concentrate according to claim 316, wherein said salt of an organic acid is citrate.

321. The buffer concentrate according to claim 316, wherein said organic acid is a vitamin acid.

322. The buffer concentrate according to claim 321, wherein said vitamin acid is selected from the group consisting of ascorbic acid and folic acid.

323. A phosphorus fertilizer buffer concentrate comprising a dry blend mixture of: (i) a salt of a phosphorous acid; and (ii) an organic acid.

324. The buffer concentrate according to claim 323, wherein phosphorus in said buffer concentrate is present in an amount equivalent to about 0.30 kg/L or greater P 2 O 5 .

325. The buffer concentrate according to claim 323, wherein phosphorus in said buffer concentrate is present in an amount equivalent to from about 0.30 kg/L to about 0.40 kg/L P 2 O 5 .

326. The buffer concentrate according to claim 323, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid, a tricarboxylic acid and combinations thereof.

327. The buffer concentrate according to claim 326, wherein said organic acid is citric acid.

328. The buffer concentrate according to claim 323, wherein said organic acid is a vitamin acid.

329. The buffer concentrate according to claim 328, wherein said vitamin acid is selected from the group consisting of ascorbic acid and folic acid.

330. The buffer concentrate according to claim 323, further comprising a plant nutrient, wherein said plant nutrient is a member selected from the group consisting of nitrogen, potassium, sulfur, calcium, magnesium, boron, iron, manganese, molybdenum, zinc, ammonia and combinations thereof.

331. A phosphorus fertilizer buffer concentrate comprising a dry blend mixture of: (i) a salt of a phosphorous acid and (ii) a salt of an organic acid.

332. The buffer concentrate according to claim 331, wherein phosphorus in said buffer concentrate is present in an amount equivalent to about 0.30 kg/L or greater P 2 O 5 .

333. The buffer concentrate according to claim 331, wherein phosphorus in said buffer concentrate is present in an amount equivalent to from about 0.30 kg/L to about 0.40 kg/L P 2 O 5 .

334. The buffer concentrate according to claim 331, wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid, a tricarboxylic acid, and combinations thereof.

335. The buffer concentrate according to claim 331, wherein said salt of an organic acid is citrate.

336. The buffer concentrate according to claim 331, wherein said organic acid is a vitamin acid.

337. The buffer concentrate according to claim 336, wherein said vitamin acid is selected from the group consisting of ascorbic acid and folic acid.

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