施氮量对宁夏引黄灌区麦后复种糜子生长、产量及氮素利用的影响

谢呈辉, 马海曌, 许宏伟, 徐郗阳, 阮国兵, 郭峥岩, 宁永培, 冯永忠, 杨改河, 任广鑫

Effects of nitrogen rate on growth, grain yield, and nitrogen utilization of multiple cropping proso millet after spring-wheat in Irrigation Area of Ningxia

XIE Cheng-Hui, MA Hai-Zhao, XU Hong-Wei, XU Xi-Yang, RUAN Guo-Bing, GUO Zheng-Yan, NING Yong-Pei, FENG Yong-Zhong, YANG Gai-He, REN Guang-Xin

表1 不同施氮处理对糜子产量及其构成因素的影响(2019-2020)

Table 1 Effects of different N treatments on grain yield and its components of proso millet in 2019 and 2020

年份 Year	施氮量 N treatment	产量 Grain yield (kg hm^-2)	千粒重 1000-grain weight (g)	穗粒数 Grain number (No. per plant)
2019	N0	1584.81±243.51 b	7.7005±0.0670 c	395.11±45.35 b
	N1	2293.33±82.21 ab	7.7431±0.0453 bc	516.33±65.76 ab
	N2	2708.15±209.31 a	7.9327±0.0650 a	609.00±53.68 a
	N3	3012.59±323.21 a	7.9124±0.0447 ab	638.78±68.11 a
2020	N0	1790.37±147.43 c	7.3548±0.0933 b	156.78±37.31 b
	N1	2834.48±100.69 b	7.6680±0.0662 a	266.89±47.59 ab
	N2	3250.67±73.71 a	7.7605±0.1116 a	329.44±31.85 a
	N3	3156.74±129.61 ab	7.7532±0.0706 a	385.67±66.17 a
	N4	3084.26±124.88 ab	7.7191±0.0427 a	338.44±26.45 a
	N5	3094.93±85.29 ab	7.5624±0.1074 ab	309.56±31.49 a
方差分析 ANOVA
施氮 N treatment (N)		17.62^**	5.08^**	5.43^**
年份 Year (Y)		8.81^**	12.49^**	52.82^**
施氮×年份 N×Y		0.78^ns	1.14^ns	0.06^ns