AGROCHEMICAL ACTIVE INGREDIENT RELEASE CONTROL AGENT AND SUSTAINED-RELEASE AGROCHEMICAL COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide an agrochemical active ingredient release control agent that shows excellent release control effect even when an agrochemical active ingredient has high water solubility, and a sustained-release agrochemical composition comprising the agrochemical active ingredient release control agent.SOLUTION: An agrochemical active ingredient release control agent comprises a polyester resin comprising specific four constitutional units at specific rates and having a specific number average molecular weight.SELECTED DRAWING: None