干旱区生态环境知识资源中心(Arid): Optimizing Grain Yield and Water Use Efficiency Based on the Relationship between Leaf Area Index and Evapotranspiration

Arid

DOI	10.3390/agriculture11040313
	Optimizing Grain Yield and Water Use Efficiency Based on the Relationship between Leaf Area Index and Evapotranspiration
	Zhang, Guoqiang; Ming, Bo; Shen, Dongping; Xie, Ruizhi; Hou, Peng; Xue, Jun; Wang, Keru; Li, Shaokun
通讯作者	Li, SK (corresponding author), Chinese Acad Agr Sci, Inst Crop Sci, Minist Agr & Rural Affairs, Key Lab Crop Physiol & Ecol, Beijing 100081, Peoples R China.
来源期刊	AGRICULTURE-BASEL
EISSN	2077-0472
出版年	2021
卷号	11 期号:4
英文摘要	Achieving optimal balance between maize yield and water use efficiency is an important challenge for irrigation maize production in arid areas. In this study, we conducted an experiment in Xinjiang China in 2016 and 2017 to quantify the response of maize yield and water use to plant density and irrigation schedules. The treatments included four irrigation levels: 360 (W1), 480 (W2), 600 (W3), and 720 mm (W4), and five plant densities: 7.5 (D1), 9.0 (D2), 10.5 (D3), 12.0 (D4), and 13.5 plants m(-2) (D5). The results showed that increasing the plant density and the irrigation level could both significantly increase the leaf area index (LAI). However, LAI expansion significantly increased evapotranspiration (ETa) under irrigation. The combination of irrigation level 600 mm (W3) and plant density 12.0 plants m(-2) (D4) produced the highest maize yield (21.0-21.2 t ha(-1)), ETa (784.1-797.8 mm), and water use efficiency (WUE) (2.64-2.70 kg m(-3)), with an LAI of 8.5-8.7 at the silking stage. The relationship between LAI and grain yield and evapotranspiration were quantified, and, based on this, the relationship between water use and maize productivity was analyzed. Moreover, the optimal LAI was established to determine the reasonable irrigation level and coordinate the relationship between the increase in grain yield and the decrease in water use efficiency.
英文关键词	maize plant density irrigation amount grain yield evapotranspiration water use-efficiency leaf area index
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000642608600001
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349367
作者单位	[Zhang, Guoqiang; Ming, Bo; Shen, Dongping; Xie, Ruizhi; Hou, Peng; Xue, Jun; Wang, Keru; Li, Shaokun] Chinese Acad Agr Sci, Inst Crop Sci, Minist Agr & Rural Affairs, Key Lab Crop Physiol & Ecol, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Guoqiang,Ming, Bo,Shen, Dongping,et al. Optimizing Grain Yield and Water Use Efficiency Based on the Relationship between Leaf Area Index and Evapotranspiration[J],2021,11(4).
APA	Zhang, Guoqiang.,Ming, Bo.,Shen, Dongping.,Xie, Ruizhi.,Hou, Peng.,...&Li, Shaokun.(2021).Optimizing Grain Yield and Water Use Efficiency Based on the Relationship between Leaf Area Index and Evapotranspiration.AGRICULTURE-BASEL,11(4).
MLA	Zhang, Guoqiang,et al."Optimizing Grain Yield and Water Use Efficiency Based on the Relationship between Leaf Area Index and Evapotranspiration".AGRICULTURE-BASEL 11.4(2021).