Mixtures containing secondary calcium and magnesium phosphonate and their use as fungicide or fertilizer
AssigneePrimingtec Ug (HaftungsbeschräNkt)
InventorsCornelia Mickley, Harald Köhle
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Abstract
The present invention relates to the use of mixtures containing secondary calcium and secondary magnesium phosphonate for combatting harmful fungi, to the use thereof as fertilizer or plant nutrient, to a mixture, containing secondary calcium and secondary magnesium phosphonate in a specific molar ratio, characterized in that the solid form of the mixture has a water solubility of at most 5 g/l, and to a method for preparing a mixture containing secondary calcium phosphonate and secondary magnesium phosphonate.
Claims14
A method for combatting harmful fungi, comprising treating the harmful fungi, their habitat or the materials or plants to be protected against fungal attack, or soil in which the plants grow or are to grow or plant propagation material, with an effective amount of a phosphonate A or of a mixture of phosphonate A and a phosphonate B, wherein the method does not include the therapeutical treatment of a human or animal body;
- where
- phosphonate A is a mixture of secondary calcium phosphonate and secondary magnesium phosphonate, and
- phosphonate B is selected from the group consisting of primary calcium phosphonate, primary magnesium phosphonate, secondary potassium phosphonate, primary potassium phosphonate, primary ammonium phosphonate and mixtures thereof;
- where the molar ratio of calcium phosphonate in phosphonate A and in phosphonate B, if present, to magnesium phosphonate in phosphonate A and in phosphonate B, if present, is of from 2:1 to 1:2.
Dependencies are inferred from the claim text.