干旱区生态环境知识资源中心(Arid): Association of maize (Zea mays L.) senescence with water and nitrogen utilization under different drip irrigation systems

Arid

DOI	10.3389/fpls.2023.1133206
	Association of maize (Zea mays L.) senescence with water and nitrogen utilization under different drip irrigation systems
	Wu, Yang; Yao, Fanyun; Wang, Yongjun; Ma, Lin; Li, Xiangnan
通讯作者	Wang, YJ
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2023
卷号	14
英文摘要	IntroductionDrip irrigation is an efficient water-saving system used to improve crop production worldwide. However, we still lack a comprehensive understanding of maize plant senescence and its association with yield, soil water, and nitrogen (N) utilization under this system. MethodsA 3-year field experiment in the northeast plains of China was used to assess four drip irrigation systems: (1) drip irrigation under plastic film mulch (PI); (2) drip irrigation under biodegradable film mulch (BI); (3) drip irrigation incorporating straw returning (SI); and (4) drip irrigation with the tape buried at a shallow soil depth (OI), and furrow irrigation (FI) was used as the control. The plant senescence characteristic based on the dynamic process of green leaf area (GLA) and live root length density (LRLD) during the reproductive stage, and its correlation with leaf N components, water use efficiency (WUE), and N use efficiency (NUE) was investigated. ResultsPI followed by BI achieved the highest integral GLA and LRLD, grain filling rate, and leaf and root senescence rate after silking. Greater yield, WUE, and NUE were positively associated with higher N translocation efficiency of leaf protein responding for photosynthesis, respiration, and structure under PI and BI; whereas, no significant differences were found in yield, WUE, and NUE between PI and BI. SI effectively promoted LRLD in the deeper 20- to 100-cm soil layers, prolonged the GLA and LRLD persistent durations, and reduced the leaf and root senescence rates. The remobilization of non-protein storage N was stimulated by SI, FI, and OI, which made up for the relative inadequacy of leaf N. DiscussionInstead of persistent GLA and LRLD durations and high translocation efficiency of non-protein storage N, fast and large protein N translocation from leaves to grains under PI and BI was found to facilitate maize yield, WUE, and NUE in the sole cropping semi-arid region, and BI was recommend considering that it can reduce plastic pollution.
英文关键词	leaf nitrogen live root green leaf area water use efficiency nitrogen use efficiency drip irrigation
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000961300800001
WOS关键词	USE EFFICIENCY ; LEAF SENESCENCE ; STAY-GREEN ; SUPPLEMENTAL IRRIGATION ; MECHANISTIC MODEL ; PLANT-DENSITY ; GRAIN-YIELD ; DRY-MATTER ; WHEAT ; PHOTOSYNTHESIS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396629
推荐引用方式 GB/T 7714	Wu, Yang,Yao, Fanyun,Wang, Yongjun,et al. Association of maize (Zea mays L.) senescence with water and nitrogen utilization under different drip irrigation systems[J],2023,14.
APA	Wu, Yang,Yao, Fanyun,Wang, Yongjun,Ma, Lin,&Li, Xiangnan.(2023).Association of maize (Zea mays L.) senescence with water and nitrogen utilization under different drip irrigation systems.FRONTIERS IN PLANT SCIENCE,14.
MLA	Wu, Yang,et al."Association of maize (Zea mays L.) senescence with water and nitrogen utilization under different drip irrigation systems".FRONTIERS IN PLANT SCIENCE 14(2023).