AGRICULTURAL CHEMICAL ACTIVE INGREDIENT RELEASE CONTROL AGENT AND GRADUALLY RELEASABLE AGRICULTURAL CHEMICAL COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide an agricultural chemical active ingredient release control agent, in which, even if the agricultural chemical active ingredient has high water solubility, showing an excellent release control effect, and a gradually releasable agricultural chemical composition containing the agricultural chemical active ingredient release control agent.SOLUTION: As the agricultural chemical active ingredient release control agent, the one containing a polyester resin with a specified number average molecular weight in which specified five constitutional are composed of specified ratios is used.SELECTED DRAWING: None