C - Chemistry – Metallurgy – 05 – G
Patent
C - Chemistry, Metallurgy
05
G
C05G 3/00 (2006.01) C05F 11/08 (2006.01) C05G 1/00 (2006.01)
Patent
CA 2148269
2148269 9506623 PCTABS00036 The invention is directed to methods of increasing the solubilisation of phosphate materials, particularly rock and insoluble phosphate fertiliser materials. A preferred composition incorporates a phosphate solubilising fungus, microorganism or reproductive material therefor, along with a nutrient capable of supporting same, into a phosphate material. Protein based nutrients, including fish based fertilising compositions have been found quite suitable. Variations include the introduction of free ammonia releasing microorganisms. Preferred embodiments of a composition are substantially dry, flowable, particles which may be coated with various agents. Also disclosed are methods for the preparation of such a composition, and the use of such compositions in increasing plant available phosphorus in soil.
L'invention se rapporte à des procédés permettant d'accroître la dissolution de matières phosphatées, en particulier la roche et les substances fertilisantes phosphatées insolubles. Une composition préférée comprend un champignon, un micro-organisme ou une substance reproductrice de ces derniers, permettant de dissoudre le phosphates, ainsi qu'une substance nutritive susceptible de les maintenir en vie, incorporés dans une matière phosphatée. Des substances nutritives protéiques, y compris des compositions fertilisantes à base de poisson ont été jugées appropriées. Des variantes comprennent l'introduction de micro-organismes libérant l'ammoniaque libre. Des modes préférés de réalisation d'une telle composition comprennent la production de particules sèches et coulantes qui peuvent être enrobées de différents agents. Des procédés de préparation d'une telle composition sont également décrits, ainsi que leur utilisation pour accroître le phosphore disponible aux plantes dans la terre.
Ade & Company
Sieber Agricultural Research Limited
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