不同施氮量对冬小麦产量、效益及土壤理化性状的影响

黄寅玲,雷忠顺,郑涛,索新霞

Effects of Different Nitrogen Concentrations on Yield and Benefit of Winter Wheat and Soil Physical and Chemical Properties

Yinling Huang,Zhongshun Lei,Tao Zheng,Xinxia Suo

表1 不同施氮量处理试验设计

Table 1 Experimental design of different nitrogen application rates kg/hm2

处理 Treatment 设计 Design 底肥Base fertilizer 追肥Top application 尿素Urea 过磷酸钙Superphosphate 氯化钾Potassium chloride 尿素Urea W1 常规施磷钾肥 0 1 000 75 0 W2 常规施肥减施氮肥30% 182.55 1 000 75 205.95 W3 常规施肥减施氮肥15% 221.70 1 000 75 250.05 W4 常规施肥减施氮肥5% 247.80 1 000 75 279.45 W5 常规施肥 260.85 1 000 75 294.15 W6 常规施肥增施氮肥5% 273.90 1 000 75 308.85