Improvements in and relating to fertilisers

Details Improvements in and relating to fertilisers Improvements in and relating to fertilisers

C - Chemistry, Metallurgy

05

D

C05D 9/02 (2006.01) C05C 9/00 (2006.01) C05C 9/02 (2006.01) C05D 1/00 (2006.01) C05D 3/00 (2006.01) C05D 5/00 (2006.01) C05D 11/00 (2006.01) C05F 11/00 (2006.01) C05F 11/08 (2006.01) C05F 11/10 (2006.01)

Patent

CA 2382856

A composition for application to a substrate is disclosed. The composition if of a pre-determined composition and pH, includes a protective material, which, on contact with water, is free from any gel forming characteristics, but on the introduction of polyvalent cations, the material forms a gel that thickens. The protective material also has clathratic properties. The polyvalent cations may be present in the protective material and/or in the substrate. Methods of manufacturing the composition are disclosed, one of which includes forming a homogenous mix into a dough which is extruded and dried to tablets. The addition of enteric coatings, more than one type of tablet or composition of tablet are also disclosed. There is also disclosed a method of pH adjustment and a total soil and crop treatment regime, using the soluble compositions.

L'invention concerne une composition à appliquer sur un substrat. Cette composition prédéterminée, possédant un pH également prédéterminé, comprend un matériau protecteur qui en contact avec de l'eau est exempt de toute propriété permettant de former un gel, et qui lorsqu'il est en contact avec des cations polyvalents forme un gel qui épaissit. Ledit matériau protecteur possède également des propriétés clathratiques. Les cations polyvalents peuvent être présents dans le matériau protecteur et/ou dans le substrat. L'invention concerne également des procédés de fabrication de ladite composition, l'un des procédés permettant de former un mélange homogène dans une pâte extrudée et séchée sous forme de comprimés. L'invention concerne, en outre, l'adjonction d'une substance d'enrobage entérique, et plus d'un type de comprimé ou de composition de comprimé. L'invention concerne enfin un procédé de réglage du pH, et un traitement global du sol et des récoltes à l'aide desdites compositions solubles.

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