Release-controlled coating fertilizer with bulk blending and preparation method thereof

摘要

PURPOSE: A release-controlled bulk blending type coated-fertilizer and a producing method thereof are provided to secure the stable growth of rice with the small amount of the fertilizer. CONSTITUTION: A producing method of a release-controlled bulk blending type coated-fertilizer comprises the following steps: mixing an olefin based resin, a biodegradation inducing resin, a water-insoluble inorganic material, and a surfactant with an organic solvent for obtaining a coating composition; coating a first fertilizer and a second fertilizer with the coating composition, separately; and bulk blending the first fertilizer and the second fertilizer. The first fertilizer is urea, and the second fertilizer is a composite fertilizer.