在不同肥力和质地的土壤上,采用田间小区及水泥池栽培试验进行了麦田氮肥利用率的研究。结果表明,高肥力麦田小麦对土壤氮素的依存率很高,氮肥的利用率较低,在设计施氮量范围内,仅为19.0％～7.4％;在中高肥力麦田,小麦对土壤氮素的依存率低,氮肥的利用率较高,达58.8％～36.9％。在供氮水平相近的不同质地土壤中,小麦对氮肥的依存率是以重壤<中壤<轻壤;氮肥利用率在氮肥用量低时相差不大(38.3％～39.3％),随着施氮量的提高,氮肥利用率下降;相同施氮量下,氮肥利用率大小为重壤>中壤>轻壤。 In different fertility and texture of the soil, the use of field plot and the cultivation of cement ponds nitrogen utilization rate of wheat field research. The results showed that the wheat with high fertility had a high dependence on soil nitrogen and the nitrogen utilization was low, only 19.0% ~ 7.4% within the range of designed nitrogen application. In wheat with medium and high fertility, Of the low dependence, nitrogen utilization is higher, reaching 58.8% to 36.9%. In different texture soils with similar nitrogen supply, the dependency rate of wheat to nitrogen fertilizer was heavy soil medium soil> light soil.