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2 不同施氮量处理对冬小麦农艺性状的影响

Table 2 Effects of different nitrogen application treatments on agronomic characters of winter wheat

处理 Treatment	基本苗 (×10⁴/hm2) Basic seedling	越冬期Wintering stage			抽穗期Heading stage			株高(cm) Plant height	穗长(cm) Ear length
处理 Treatment	基本苗 (×10⁴/hm2) Basic seedling	主茎叶龄 Main stem leaf age	次生根数 Secondary root	茎蘖数 Tiller number	主茎叶龄 Main stem leaf age	次生根数 Secondary root	茎蘖数 Tiller number	株高(cm) Plant height	穗长(cm) Ear length
W1	321.5a	5.28c	5.94b	2.73d	10.68c	20.06b	1.69b	52.8c	5.4b
W2	322.0a	5.41b	6.23ab	3.16c	11.15b	22.81a	2.19a	63.7b	6.5b
W3	322.0a	5.47b	6.65ab	3.47b	11.32ab	23.13a	2.24a	65.1ab	6.8a
W4	322.5a	5.61a	6.75a	3.60a	11.61a	23.88a	2.30a	65.3ab	7.2a
W5	322.5a	5.62a	6.76a	3.61a	11.65a	23.87a	2.31a	65.4ab	7.3a
W6	323.0a	5.65a	6.76a	3.67a	11.71a	23.86a	2.32a	66.0a	7.3a