Dithiocarbamates and phosphite formulations

Abstract

Dithiocarbamate and phosphite containing fertilizers, as well as methods of making and methods of using these fertilizers, are disclosed.

1 . A fertilizer concentrate comprising:
 a dithiocarbamate; and   at least one phosphite salt   wherein said fertilizer concentrate is essentially devoid of dispersants and wetting agents.   
     
     
         2 . The fertilizer concentrate of  claim 1 , wherein
 said dithiocarbamate is in a granular form;   said dithiocarbamate is present in an amount of from about 0.55 kg of dithiocarbamate/kg of fertilizer concentrate to about 0.95 kg of dithiocarbamate/kg of fertilizer concentrate;   said phosphite salt is present in an amount of from about 0.01 kg of phosphite salt/kg of fertilizer concentrate to about 0.45 kg of phosphite salt/kg of fertilizer concentrate.   
     
     
         3 . The fertilizer concentrate of  claim 2 , wherein at least about 90% of the granules of said fertilizer concentrate have a diameter of from about 0.001 mm and about 0.5 mm. 
     
     
         4 . The fertilizer concentrate of  claim 1 , wherein said dithiocarbamate is a member selected from mancozeb, maneb, zineb, thiram and metiram. 
     
     
         5 . The fertilizer concentrate of  claim 1 , wherein said phosphite salt is a member selected from monopotassium phosphite, dipotassium phosphite, calcium phosphite, monoammonium phosphite, diammonium phosphite, calcium hypophosphite and potassium hypophosphite. 
     
     
         6 . A method of providing a fertilizer and a fungicide to a plant, said method comprising:
 (a) mixing water and the fertilizer of  claim 1 , thus forming a use-dilution fertilizer; and   (b) applying said use-dilution fertilizer to the foliage of a plant, thus providing said fertilizer and said fungicide to a plant.   
     
     
         7 . The fertilizer concentrate of  claim 1 , wherein
 said dithiocarbamate is present in an amount of from about 10% wt of dithiocarbamate/wt of fertilizer concentrate to about 35% wt of dithiocarbamate/wt of fertilizer concentrate;   said phosphite salt is present in an amount of from about 15% wt of phosphite salt/wt of fertilizer concentrate to about 35% wt of phosphite salt/wt of fertilizer concentrate   and further comprising water in an amount of about 30% wt of water/wt of fertilizer concentrate to about 40% wt of water/wt of fertilizer concentrate.   
     
     
         8 . A fertilizer concentrate comprising:
 a dithiocarbamate, which is present in an amount of from about 10% wt of dithiocarbamate/wt of fertilizer concentrate to about 35% wt of dithiocarbamate/wt of fertilizer concentrate;   at least one phosphite salt, which is present in an amount of from about 15% wt of phosphite salt/wt of fertilizer concentrate to about 35% wt of phosphite salt/wt of fertilizer concentrate   a suspending agent, which is present in an amount of about 5% wt of suspending agent/wt of fertilizer concentrate   and water in an amount of about 30% wt of water/wt of fertilizer concentrate to about 40% wt of water/wt of fertilizer concentrate.   
     
     
         9 . The fertilizer concentrate of  claim 8 , wherein said dithiocarbamate is a member selected from mancozeb, maneb, zineb, thiram and metiram. 
     
     
         10 . The fertilizer concentrate of  claim 8 , wherein said phosphite salt is a member selected from monopotassium phosphite, dipotassium phosphite, calcium phosphite, monoammonium phosphite, diammonium phosphite, calcium hypophosphite and potassium hypophosphite. 
     
     
         11 . The fertilizer concentrate of  claim 10 , wherein said phosphite salt is calcium phosphite. 
     
     
         12 . A method of providing a fertilizer and a fungicide to a plant, said method comprising:
 (a) mixing water and the fertilizer of  claim 7 , thus forming a use-dilution fertilizer; and   (b) applying said use-dilution fertilizer to the foliage of a plant, thus providing said fertilizer and said fungicide to a plant.