slow release urea production reference chinese academy of sciences shenyang institute of applied ecology of patent technology, adding urease inhibitor and nitrification inhibitor in urea production process, can inhibit the activities of urease and nitrification bacteria activity in the soil, delaying the urea into the nitration reaction and hydrolysis reaction of ammonium nitrogen in soil after, and reduce the denitrification reaction in order to reduce the loss of nutrients, nitrogen and ammonia; adding stabilizer, the urea produced by hydrolysis of ammonia by the adsorption of ammonia stabilizer, and slowly release to the crop absorption and utilization, can reduce the 60% nitrogen environment non-point source pollution caused by the loss, so as to further improve the nitrogen utilization, improve the efficiency of urea fertilizer; the degradation rate of 75%-99% inhibitor added, no accumulation of residues in soil. in keeping the urea nitrogen content is not reduced circumstances in agricultural use to nitrogen slow release of nutrients on the growth and development of crops, meet the nitrogen requirement, is a long-acting nitrogen fertilizer synergist. with no tillage and simplify the popularization and application of new technologies in the planting process, slow-release urea also provides a free top dressing fertilizer varieties, to meet the demand of labor saving.
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