AQUEOUS POLYMER-WAX COATED CONTROLLED RELEASE FERTILIZER AND PREPARATION THEREOF

摘要

The invention provides a controlled release fertilizer coated by aqueous polymer-wax and the preparation thereof. The controlled release fertilizer is composed of a fertilizer core and its exterior coating layer, which comprises an internal wax film layer and a surficial composite polymer film layer formed from aqueous polymer latex and biodegradable natural macromolecule.