在河西灌漠土上进行田间试验.结果表明,尿素与氯化铵按一定比例配合施用与不含氯的氮肥相比,均未能明显提高小麦和甜菜的产量,也不影响它们的品质.这说明氯的硝化抑制作用是微弱的,不会延长氮肥肥效.生产上采取氯化铵与其它氮肥配合施用的方法,没有提高氮肥利用率的作用. Field experiments were conducted on the Hexi desertified soil.The results showed that the yield of wheat and sugar beet was not obviously increased or the quality of urea and ammonium chloride was not affected compared to the control. This shows that the inhibition of chlorine nitrification is weak, will not extend the efficiency of nitrogen fertilizer production to take ammonium chloride and other nitrogen fertilizer with the method of application, did not improve the efficiency of nitrogen use.