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AGROCHEMICAL GRAIN FOR COATED AGROCHEMICAL GRANULE, COATED AGROCHEMICAL GRANULE, ITS PRODUCTION AND CULTIVATION OF FIELD CROP USING COATED AGROCHEMICAL GRANULE
AGROCHEMICAL GRAIN FOR COATED AGROCHEMICAL GRANULE, COATED AGROCHEMICAL GRANULE, ITS PRODUCTION AND CULTIVATION OF FIELD CROP USING COATED AGROCHEMICAL GRANULE
PROBLEM TO BE SOLVED: To produce the subject grain capable of suppressing the leakage of an agrochemical ingredient a fixed time release type coated agrochemical during the initial release suppressing period thereof and further making the release rate of the agrochemical ingredient of a linear release type coated agrochemical constant and useful as a core material of the coated agrochemical granule by including the agrochemical ingredient and regulating the disintegration ratio within a specific range. ;SOLUTION: This grain is obtained by including (A) one or more kinds of agrochemical ingredients {e.g. 1,2,5,6-tetrahydropyrrolo[3,2,1-ij]quinolin-4-one} and further preferably including (B) bentonite and (C) a hydrophilic binder such as polyvinyl alcohol and thereby regulating the disintegration ratio of the granule after undergoing the shaking destroying treatment to 0.001-2%. The content of the ingredient B is preferably 20-80 wt.% based on all the ingredients and the content of the ingredient C is preferably 1-5 wt.% based on all the ingredients. The grain is produced by an extrusion granulating method, etc., and preferably has 0.7-5.0 mm grain diameter.;COPYRIGHT: (C)2000,JPO
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