Plant-protection treatment of plant and compositions which can be used for this purpose
OwnerFrederic Ferrier, Edwige Le Bras +3inventors
InventorsFrederic Ferrier, Edwige Le Bras, Georges Ramel, Marie-Lise Jacqueline Brigitte Pailleret, Gerard Joncheray
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Abstract
To increase the effectiveness of a cupric plant-protection composition and therefore to reduce the dose of copper used per hectare, a copper source, in non-chelated form, is combined with a sparingly soluble calcium and/or zinc and/or manganese chelate. This combination makes it possible to obtain, in situ, the gradual release of a soluble copper chelate.
Claims11
Process for the plant-protection treatment of plants, characterized in that it consists in combining a copper source, in non-chelated form, and a sparingly soluble calcium and/or zinc and/or manganese chelate in order to obtain, in situ, the gradual release of the soluble copper chelate.
Plant-protection composition comprising a copper source, in non-chelated form, and at least one chelate of an α-hydroxycarboxylic, diphosphonic, polyphosphonic or α-hydroxyphosphonic acid and of calcium and/or of zinc and/or of manganese.
Dependencies are inferred from the claim text.