CONTROLLED-RELEASE TYPE FERTILIZER WITH DECREASED FLOATING PROPERTY COMPRISING TRI-BLOCK COPOLYMER AND METHOD FOR PREPARING THE SAME

摘要

The present invention relates to a controlled-release type fertilizer with outstandingly decreased floating property, comprising a granular fertilize core; a coating layer (shell) formed on the surface of the granular fertilizer core, and comprising olefin-based resin; and additives attached on the coating layer, and comprising ethylene oxide-propylene oxide-ethylene oxide(EO-PO-EO) or propylene oxide-ethylene oxide-propylene oxide(PO-EO-PO) tri-block copolymer.