干旱区生态环境知识资源中心(Arid): Evaluation of cotton N nutrition status based on critical N dilution curve, N uptake and residual under different drip fertigation regimes in Southern Xinjiang of China

Arid

DOI	10.1016/j.agwat.2021.107134
	Evaluation of cotton N nutrition status based on critical N dilution curve, N uptake and residual under different drip fertigation regimes in Southern Xinjiang of China
	Hou, Xianghao; Xiang, Youzhen; Fan, Junliang; Zhang, Fucang; Hu, Wenhui; Yan, Fulai; Guo, Jinjin; Xiao, Chao; Li, Yuepeng; Cheng, Houliang; Li, Zhijun
通讯作者	Xiang, YZ ; Fan, JL ; Zhang, FC (corresponding author), Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Are, Minist Educ, Yangling 712100, Shaanxi, Peoples R China.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2021
卷号	256
英文摘要	Irrigation and fertilization are the two most important measures to ensure the agricultural development in arid regions. However, there is still a lack of reasonable irrigation and fertilization strategy in Xinjiang, the largest cotton producing area in China, which causes a waste of resources and a reduction in cotton yield and pollutes the environment. This study investigated the effects of four irrigation amounts (W-0.6: 60% ETc, W-0.8: 80% ETc, W-1.0: 100% ETc and W-1.2: 120% ETc, where ETc is the crop evapotranspiration) and four nitrogen rates (N-250-250 kg N ha(-1), N-300-300 kg N ha(-1), N-350-350 kg N ha(-1) and N-400-400 kg N ha(-1)) on seed cotton yield, nitrogen nutrition status and soil nitrogen residue, so as to explore the optimal water-nitrogen coupling strategy to increase cotton production and water-fertilizer use efficiency while reducing environmental pollution. The nitrogen dilution curves were built to assess the nitrogen nutrition status of cotton. The results showed that increasing irrigation amount increased dry matter and seed cotton yield, but decreased harvest index. Nitrogen application enhanced the nitrogen concentration and accumulation in cotton. Irrigation decreased the nitrogen concentration, but increased the nitrogen accumulation by increasing the dry matter. The highest total plant nitrogen accumulation was obtained under W1.2N400, 223.88 kg ha(-1) in 2018 and 242.77 kg ha(-1) in 2019. With the increase of irrigation amount, agronomic nitrogen utilization efficiency (aNUE) first increased and then decreased. Increasing irrigation amount increased nitrogen recovery efficiency (NRE), but reduced physiological nitrogen utilization efficiency (pNUE). pNUE and aNUE decreased with the increasing nitrogen rate, while NRE first increased and then decreased. Soil NO3--N content increased with the increase of nitrogen rate. Irrigation reduced NO3--N content in the surface soil (0-30 cm), while increased that in the deeper soil (40-80 cm). The optimal nitrogen nutrition status was found under W1.0N300, followed by W1.0N350. Furthermore, the optimal dry matter, seed cotton yield, NRE and total nitrogen accumulation were obtained under W1.0N350, which was considered as the optimal combination of irrigation amount and nitrogen rate in this study.
英文关键词	Seed cotton yield Nitrogen uptake Nitrogen nutrition status Nitrogen use efficiency Soil NO3--N
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000691196200008
WOS关键词	NITROGEN USE EFFICIENCY ; WATER-USE EFFICIENCY ; YIELD COMPONENTS ; DRY-MATTER ; LINT YIELD ; IRRIGATION ; CROP ; SOIL ; FERTILIZER ; MANAGEMENT
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362378
作者单位	[Hou, Xianghao; Xiang, Youzhen; Fan, Junliang; Zhang, Fucang; Hu, Wenhui; Yan, Fulai; Guo, Jinjin; Xiao, Chao; Li, Yuepeng; Cheng, Houliang; Li, Zhijun] Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Are, Minist Educ, Yangling 712100, Shaanxi, Peoples R China; [Hou, Xianghao; Xiang, Youzhen; Fan, Junliang; Zhang, Fucang; Hu, Wenhui; Yan, Fulai; Guo, Jinjin; Xiao, Chao; Li, Yuepeng; Cheng, Houliang; Li, Zhijun] Northwest A&F Univ, Inst Water Saving Agr Arid Areas China, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Hou, Xianghao,Xiang, Youzhen,Fan, Junliang,et al. Evaluation of cotton N nutrition status based on critical N dilution curve, N uptake and residual under different drip fertigation regimes in Southern Xinjiang of China[J]. 西北农林科技大学,2021,256.
APA	Hou, Xianghao.,Xiang, Youzhen.,Fan, Junliang.,Zhang, Fucang.,Hu, Wenhui.,...&Li, Zhijun.(2021).Evaluation of cotton N nutrition status based on critical N dilution curve, N uptake and residual under different drip fertigation regimes in Southern Xinjiang of China.AGRICULTURAL WATER MANAGEMENT,256.
MLA	Hou, Xianghao,et al."Evaluation of cotton N nutrition status based on critical N dilution curve, N uptake and residual under different drip fertigation regimes in Southern Xinjiang of China".AGRICULTURAL WATER MANAGEMENT 256(2021).