Nitrogen fertilizer combined inhibiting agent and its uses

Abstract

Disclosed is a nitrogenous fertilizer inhibiting agent and the use, which comprises 1-50wt% of dicyandiamide and 50-99wt% of calcium cyanamide, the inhibiting agent can be bonded with N-containing inorganic fertilizer such as ammonium phosphate, ammonium nitrate, ammonia sulfate, urea, liquid ammonia for synergic effect to increase nitrogen utilization coefficient.

Description

technical field

[0001] The invention relates to a fertilizer additive, in particular to a combination inhibitor of nitrogen fertilizer and its application. Background technique

[0002] At present, my country has become the largest country in the world in the consumption and production of chemical fertilizers, and nitrogen fertilizer is the most widely used fertilizer variety in agricultural production, and its production and application are increasing year by year, especially in some economically developed areas. Abandon the tradition of using organic fertilizers. Instead, large amounts of chemical fertilizers have been used. According to statistics, the domestic nitrogen fertilizer consumption in 2004 was about 21.6 million tons. The total consumption of chemical fertilizers is about 44 million tons, and China's chemical fertilizer production has reached more than 38 million tons, accounting for more than 1 / 5 of the world's total chemical fertilizer production, ranking fi...