Dual salt fertilizer giving enhanced crop yields

Details Dual salt fertilizer giving enhanced crop yields Dual salt fertilizer giving enhanced crop yields

C - Chemistry, Metallurgy

05

C

C05C 3/00 (2006.01) C05B 1/00 (2006.01) C05D 3/00 (2006.01) C05D 9/02 (2006.01)

Patent

CA 2727577

Multiple-component fertilizer materials and methods of use are provided, wherein the fertilizer materials include first and second fertilizer products respectively including an ammoniacal fertilizer (e.g., urea) in combination with a partial calcium salt of a selected copolymer, and a phosphorous fertilizer (e.g., DAP) in combination with a partial sodium salt of a selected copolymer. The copolymer fractions of the first and second fertilizer products are most preferably copolymers of itaconic acid and maleic anhydride. The fertilizer materials give synergistically enhanced crop yields when applied to soil or growing plants.

Cette invention concerne des matériaux fertilisants à plusieurs composants et des procédés dutilisation, les matériaux fertilisants comprenant un premier produit fertilisant et un second produit fertilisant contenant respectivement un engrais ammoniacal (par exemple lurée) associé avec un sel de calcium partiel dun copolymère sélectionné, et un engrais phosphoré (par exemple le DAP) associé avec un sel de sodium partiel dun copolymère sélectionné. Les fractions des copolymères du premier produit fertilisant et du second produit fertilisant sont de préférence des copolymères de lacide itaconique et de lanhydride maléique. Les matériaux fertilisants donnent des rendements de cultures meilleurs par synergie lorsquils sont appliqués au sol ou aux plantes cultivées.

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