AGROCHEMICAL GRANULE EXCELLENT IN DISSOLUTION OF AGROCHEMICAL ACTIVE INGREDIENT IN WATER OF SURFACE OF PADDY FIELD

摘要

PROBLEM TO BE SOLVED: To obtain an agrochemical granule excellent in collapse and dispersibility in water, improved in dissolution rate in water on the surface of a paddy field of an agrochemical active ingredient practically insoluble in water on the surface of a paddy field, by combining a system comprising an agrochemical active ingredient and a specific surfactant with a prescribed saccharide. ;SOLUTION: This agrochemical granule is obtained by adding a saccharide having ≤400 molecular weight to a system comprising an agrochemical active ingredient and a polycarboxylic acid-based surfactant and/or a polyoxyethylene styryl phenyl ether-based surfactant. Glucose, sorbitol, lactose, sucrose and maltose are especially preferable as the saccharide having ≤400 molecular weight. The used amount of the saccharide is 1-15% pts.wt., preferably 2-10% pts.wt. based on the total of formulation. A component practically insoluble in water on the surface of a paddy field is preferably as the agrochemical active ingredient. A herbicide active ingredient, pyrazolate, pretilachlor, dimethametryn, etc., are preferably as the agrochemical active ingredient. The agrochemical active ingredient has preferably ≥2μm average particle diameter.;COPYRIGHT: (C)1997,JPO