水氮耦合对春小麦干物质累积与植株氮素转运的影响

梁伟琴, 贾莉, 郭黎明, 李应兰, 胡亚峰, 陈小花, 马旭凤, 李静

Effects of Irrigation and Nitrogen Application on Dry Matter Accumulation and Nitrogen Transport of Spring Wheat

Liang Weiqin, Jia Li, Guo Liming, Li Yinglan, Hu Yafeng, Chen Xiaohua, Ma Xufeng, Li Jing

表3 灌水量与施氮量对春小麦产量与氮素生产效率的影响

Table 3 Effects of irrigation and nitrogen application rates on grain yield and nitrogen use efficiency

处理Treatment		籽粒产量 Grain yield (kg/hm²)	NHI (%)	氮素干物质生产效率 N use efficiency of biomass (kg/kg)	氮素籽粒生产效率 N use efficiency of grain (kg/kg)	NUPE (kg/kg)	NPFP (kg/kg)	氮肥利用率 Recovery efficiency of N (%)
灌水 Irrigation	氮 Nitrogen	籽粒产量 Grain yield (kg/hm²)	NHI (%)	氮素干物质生产效率 N use efficiency of biomass (kg/kg)	氮素籽粒生产效率 N use efficiency of grain (kg/kg)	NUPE (kg/kg)	NPFP (kg/kg)	氮肥利用率 Recovery efficiency of N (%)
W1	N0	2184.63cE	66.45bD	46.98aA	20.51aB	–	–	–
	N1	2768.52bcDE	66.56abCD	41.29aB	19.02bC	1.81aB	34.61aC	46.26aB
	N2	3414.98abCD	67.29aBC	37.24bC	18.44cD	1.16bE	21.34bD	47.94aB
	N3	3656.33aC	64.91abCD	36.84bC	18.54cD	0.82cC	15.23cE	36.93bC
W2	N0	2975.32cDE	70.72bABC	41.73abB	20.63bC	–	–	–
	N1	4482.88bB	75.32aA	43.40aB	22.14aAB	2.53aA	56.03aB	72.89aA
	N2	5418.66aA	71.48aA	38.59bC	21.31bC	1.59bB	33.87bC	68.78aA
	N3	5446.90aA	67.70bCD	39.26bC	20.55bC	1.10cC	22.70cD	50.33bB
W3	N0	3396.25bCD	70.29bAB	52.96bA	26.10aA	–	–	–
	N1	5101.84aAB	71.80aA	50.96aA	24.14bB	2.64aA	63.77aA	22.56aD
	N2	5472.52aA	69.38cABC	44.71bB	22.10cC	1.55bB	34.20bC	21.39aD
	N3	5424.60aA	68.97dCD	47.55bA	21.37cC	1.06cC	22.60cD	14.20bE
F值F-value
W		114.12^**	31.06^**	27.19^**	34.52^**	88.07^**	35.91^**	223.25^**
N		76.22^**	9.75^**	64.36^**	106.22^**	933.23^**	311.11^**	183.38^**
W×N		4.00^**	3.25^*	7.75^**	2.88^*	19.40^**	8.23^**	35.91^**