A COATED GRANULAR FERTILIZER

摘要

A coated granular fertilizer which makes it possible to independently design the period since its application till 10% dissolution-out and the period since 10% dissolution-out till completion of its dissolution-out is provided, which fertilizer is prepared by coating a granular fertilizer with a coating having a sugar polymer or its derivative dispersed therein, and has a time limit dissolution-out function, the former period till 10% dissolution-out and the latter dissolutionout duration being respectively capable of being controlled to within a range of 26 to 315 days and a range of 29 to 371 days.