Fertilizer-polymer mixtures which inhibit nitrification in...

Details Fertilizer-polymer mixtures which inhibit nitrification in... Fertilizer-polymer mixtures which inhibit nitrification in...

C - Chemistry, Metallurgy

08

L

C08L 35/00 (2006.01) C05G 3/08 (2006.01) C05C 9/00 (2006.01)

Patent

CA 2676016

Improved, low-pH aqueous polymer mixtures are provided which can be applied directly to soils orincoiporated within ammoniacal nitrogen-containing fertilizers to inhibit nitrification in soils, thus enhancing plant uptake of ammonium and yields. The polymers are advantageously used as metal (e.g., Ca) salts or complexes at pH levels of up to about 2. The polymers have anionic functional groups and are highly water dispersible.

L'invention concerne des mélanges de polymères aqueux de faible pH, améliorés qui peuvent être appliqués directement à des sols ou incorporés dans des engrais contenant de l'azote ammoniacal pour inhiber la nitrification dans les sols, favorisant ainsi l'absorption par les plantes de l'ammonium et les rendements. Les polymères sont utilisés de manière avantageuse comme sels ou complexes métalliques (par exemple, Ca) à des niveaux de pH jusqu'à environ 2. Les polymères ont des groupes fonctionnels anioniques et sont hautement dispersibles dans l'eau.

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