新型尿素缓释剂对作物产量的影响  

Effect of a new type urea slow-release inhibit on crop yield

作　　者：赵树魁[1] 郝奎[2] 刘义杰[1] 黄永红[1] 

机构地区：[1]大庆高等专科学校,大庆163712 [2]大庆市农业技术推广中心,大庆163712

出　　处：《土壤肥料》2005年第1期48-51,共4页Soils and Fertilizers

摘　　要：尿素缓释剂不使用HQ(氢醌),而是采用多种化合物复配成的具有复合抑制功能的新型脲酶抑制剂。培养试验结果表明,尿素缓释剂对土壤脲酶活性有一定的抑制作用,可提高尿素肥效,使土壤中有效氮贮存量提高20 4%。田间试验结果表明,使用尿素缓释剂添加到尿素中,比普通尿素有明显的增产作用,粮食作物可增产14 5%,蔬菜可增产19 5%,且可省掉追肥的工序。The urea slow-release inhibitor is the new type urea enzyme preparation in which HQ (hydroquinol) is not used and various compounds with compound restraint functions are adopted. The cultural experiment result indicated that the urea slow-release inhibitor had a definite inhibitory effect on the soil urea enzyme activity and improves the manorial effect of urea so that it increased the effective storage of nitrogen in the soil up to 20.4%. The field experiment results showed that the urea slow-release inhibitor mixed into the urea had a higher rate of yield production than common urea so that the yield of the grain crops increased by 14.5% and the yield of the vegetables increased by 19.5%, and the procedure of top application can be left out.

关 键 词：尿素缓释剂 土壤有效氮 产量 吸氮量 

分 类 号：S143.14[农业科学—肥料学]