长效尿素是在普通尿素生产流程中添加一定比例的脲酶抑制剂而制成。其作用是通过脲酶抑制剂适当地抑制土壤脲酶活性,以延缓尿素的分解速度,达到长效尿素供肥与作物需肥的时间基本趋于同步,提高肥料利用率。一般可节省尿素15～20%。 Long-acting urea is made by adding a certain proportion of urease inhibitor to the ordinary urea production process. Its role is to urease inhibitors inhibit soil urease activity, to delay the decomposition rate of urea to achieve long-term urea fertilizer and crop fertilizer time basically synchronized, improve fertilizer utilization. General savings of urea 15 to 20%.