| 摘要 |
PROBLEM TO BE SOLVED: To obtain a granular agrochemical wettable powder excellent in collapsibility in water, dispersibility, suspensibility and redispersibility. SOLUTION: This granular agrochemical wettable powder comprises (1) an agrochemical active ingredient (2) bentonite and (3) a vitreous powder obtained by pulverizing a natural vitreous pneumatophore, and having irregular shapes and 5-100μm average particle diameter. The average particle diameter of the vitreous powder obtained by pulverizing the natural vitreous pneumatophore is preferably 5-80μm. The vitreous powder obtained by pulverizing the natural vitreous pneumatophore is preferably a powder obtained by pulverizing a fired perlite or a Shirasu (volcanic ash) balloon, and has 10-30μm average particle diameter. Preferably, the bentonite is a sodium bentonite or a calcium bentonite and the particle diameter of the granular agrochemical wettable powder is 0.1-10 mm.
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