腐植酸尿素对冬小麦增产效果及氮肥利用率的影响

以冬小麦为试验材料,研究腐植酸尿素对其产量构成因素、产量及氮肥利用率的影响。试验结果表明:腐植酸尿素能显著提高冬小麦产量、千粒重及氮肥利用率。施用腐植酸尿素I型和腐植酸尿素II型与农民习惯施肥相比,冬小麦产量分别增加753.2、756.9 kg/hm~2,千粒重分别提高1.3、1.4 g,氮肥利用率分别提高11.97、11.60个百分点;与普通BB肥相比,冬小麦产量分别增加897.7、894.0 kg/hm~2,千粒重分别提高0.5、0.6 g,氮肥利用率分别提高10.11、9.74个百分点。

Effects of Urea Humate on Winter-wheat Yield Increase and Utilization Rate of Nitrogen Fertilizer

The effects of urea humate on yield components, yield, and utilization rate of nitrogen fertilizer were studied with winter-wheat as test material. The results showed that urea humate was able to signiifcantly improve yield, thousand-grain weight and utilization rate of nitrogen fertilizer of winter-wheat. Comparing with the treatment used farmer conventional fertilization, the winter-wheat yields of the treatments used urea humate type I and type II were increased by 753.2kg/hm2 and 756.9kg/hm2 respectively, the winter-wheat thousand-grain weight were increased by 1.3g and 1.4g, utilization rates of nitrogen fertilizer were increased by 11.97 and 11.60 percentage points. On the other hand, compared with common compound fertilizer, the winter-wheat yields of the treatments used urea humate type I and type II were increased by 897.7kg/hm2 and 894.0kg/hm2 respectively, the winter-wheat thousand-grain weight were increased by 0.5g and 0.6g, utilization rates of nitrogen fertilizer were increased by 10.11 and 9.74 percentage points.