SLOW-RELEASE FERTILIZER

摘要

PROBLEM TO BE SOLVED: To obtain a slow-release fertilizer having fertilizer components coated with coating layers which have uniform films and do not remain in the environment after fertilizer application. SOLUTION: This fertilizer contains at least either one of a biodegradable polymer component obtained by copolymerizing an aliphatic polyester segment of which >=60% of alkyl in a 2-hydroxy-2-alkyl acetic acid unit is methyl and a thermoplastic resin segment having an unsaturated bond and an organic fertilizer or inorganic fertilizer.