ADDITIVE CONTAINING N-(-N-BUTYL) THIOPHOSPHORIC TRIAMIDE FOR UREA-BASED FERTILIZER

摘要

A dry flowable additive for aqueous urea-based fertilizers made of 3-15 % by weight of solid urea formaldehyde polymer (UFP), 0.40 to 15.0 % by weight of N-(n-butyl) thiophosphoric triamide (NBPT), and 40 to 95 % by weight of dicyandiamide (DCD), wherein the liquid fertilizer containing the additive provides reduced nitrogen loss from the soil. Optionally, the dry additive may also be blended with molten or solid urea to form a solid urea-based fertilizer with reduced nitrogen loss from the soil.