Controlled release fertilizer compositions and processes for...

Details Controlled release fertilizer compositions and processes for... Controlled release fertilizer compositions and processes for...

A - Human Necessities

01

N

A01N 25/26 (2006.01) C05G 3/00 (2006.01) C05G 5/00 (2006.01)

Patent

CA 2346710

A controlled release fertilizer is provided which exhibits a Gaussian nutrient release rate pattern. The fertilizer composition includes a granular nutrient core material having a single layer coating of a substantially water-insoluble, uniform, substantially continuous polymer film thereon. Processes are also provided for producing the fertilizer compositions. Methods are also provided for treating plants with the fertilizer compositions.

L'invention concerne un engrais à libération contrôlée, présentant un modèle gaussien de taux de libération d'élément nutritif. La composition d'engrais comprend un matériau de noyau d'élément nutritif granulaire, pourvu d'un revêtement monocouche de film polymère sensiblement continu, uniforme et insoluble dans l'eau. L'invention concerne également des méthodes de préparation de ces compositions d'engrais. Elle concerne, en outre des procédés permettant de traiter des plantes avec lesdites compositions d'engrais.

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