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内蒙古扎赍河农场肥料厂在中国科学院林业土壤研究所指导下,试生产的长效尿素,年初已通过鉴定。长效尿素是通过尿素生产流程中添加一定比例的脲酶抑制剂制成的。这种脲酶活性具有抑制作用,可延缓尿素肥料的分解过程,增长肥效期,提高利用率。与普通尿素相比,供肥最长时间从60天延长到100～130天,作物对氮素的利用率从45～50％提高到
Zahe River in Inner Mongolia farm fertilizer plant under the guidance of the Institute of Forestry, Chinese Academy of Sciences, the trial production of long-acting urea, the beginning of the year has been identified. Long-acting urea is made by adding a proportion of urease inhibitor to the urea production process. This urease activity has an inhibitory effect, can delay the decomposition process of urea fertilizer, increase fertilizer efficiency, improve utilization. Compared with ordinary urea, the longest time for fertilizer was extended from 60 days to 100 to 130 days, and the utilization of crop nitrogen increased from 45 to 50%