干旱区生态环境知识资源中心(Arid): Reduced irrigation and nitrogen coupled with no-tillage and plastic mulching increase wheat yield in maize-wheat rotation in an arid region

Arid

DOI	10.1016/j.fcr.2019.107615
	Reduced irrigation and nitrogen coupled with no-tillage and plastic mulching increase wheat yield in maize-wheat rotation in an arid region
	Guo, Yao 1,2; Yin, Wen 1,2; Hu, Falong 1,2; Fan, Zhilong 1,2; Fan, Hong 1; Zhao, Cai 1; Yu, Aizhong 1,2; Chai, Qiang1,2 ; Coulter, Jeffrey A.3
通讯作者	Chai, Qiang
来源期刊	FIELD CROPS RESEARCH
ISSN	0378-4290
EISSN	1872-6852
出版年	2019
卷号	243
英文摘要	Irrigation, nitrogen (N) fertilization, and tillage practices for spring wheat following plastic-mulched maize were studied to provide a basis for optimizing production technology to achieve high wheat yield in arid irrigated regions. No-tillage, plastic mulching, water-nitrogen interactions, and crop rotation are the important valuable strategies for improving grain yield (GY) in arid regions, but there is lack of theoretical basis on whether no-tillage in combination with plastic film mulching from the previous crop can enhance GY of following wheat. A field experiment was conducted in an arid region of northwestern China during the 2016 and 2017 growing seasons, which evaluated all combinations of two tillage practices, two levels of irrigation, and three levels of N application. Two tillage practices included no-tillage with previous plastic mulching retained (NT), and conventional tillage (CT). Two levels of irrigation included the local conventional irrigation amount, 2400 m(3) ha(-1) (high: 12), and the local conventional irrigation amount reduced by 20%, 1920 m(3) ha(-1) (low: I1). Three levels of N application included the local conventional N amount, 225 kg N ha(-1) (high: N3), the local conventional N amount reduced by 20%, 180 N kg ha(-1) (medium: N2), and the local conventional N amount reduced by 40%, 135 kg N ha(-1) (low: N1). Compared with CT, NT increased GY, biomass yield (BY), and leaf area index (LAI) during the two study years by 10.1-10.4%, 5.4-15.1%, and 22.8-28.5%, respectively. Grain yield was 2.4-4.3% greater with I1 compared to 12, but BY was not significantly different between irrigation levels. Net assimilation rate (NAR) was 5.8-6.7% greater with N2 compared to N3, but LAI were not affected by N rate. A 20% reduction in both irrigation and N application, combined with no-tillage and retention of plastic film mulching from the previous maize crop (NTI1N2), increased GY, BY, and LAI by 15.2-22.0%, 7.8-9.7%, and 17.9-26.1%, respectively, compared to high levels of irrigation and nitrogen with conventional tillage (CTI2N3). The NTI1N2 treatment significantly increased spike number (SN), kernel number per spike (KNS), and thousand-kernel weight (TKW). Path analysis confirmed that increased SN and TKW was the main reason for improved GY with the NTI1N2 treatment. Simultaneous reduction of irrigation and N application, combined with NT and retention of residual plastic film mulching from the previous maize crop, could be considered a favorable strategy for sustainable intensification of wheat production in arid regions.
英文关键词	No-tillage Plastic mulch Irrigation Nitrogen Wheat
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000494893700003
WOS关键词	WATER-USE EFFICIENCY ; SOIL-TEMPERATURE ; DURUM-WHEAT ; LOESS PLATEAU ; GRAIN-YIELD ; CROP YIELDS ; LEAF ; METABOLISM ; SIMULATION ; DYNAMICS
WOS类目	Agronomy
WOS研究方向	Agriculture
EI主题词	2019-11-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310690
作者单位	1.Gansu Prov Key Lab Aridland Crop Sci, Lanzhou 730070, Gansu, Peoples R China; 2.Gansu Agr Univ, Coll Agron, Lanzhou 730070, Gansu, Peoples R China; 3.Univ Minnesota, Dept Agron & Plant Genet, St Paul, MN 55108 USA
推荐引用方式 GB/T 7714	Guo, Yao,Yin, Wen,Hu, Falong,et al. Reduced irrigation and nitrogen coupled with no-tillage and plastic mulching increase wheat yield in maize-wheat rotation in an arid region[J],2019,243.
APA	Guo, Yao.,Yin, Wen.,Hu, Falong.,Fan, Zhilong.,Fan, Hong.,...&Coulter, Jeffrey A..(2019).Reduced irrigation and nitrogen coupled with no-tillage and plastic mulching increase wheat yield in maize-wheat rotation in an arid region.FIELD CROPS RESEARCH,243.
MLA	Guo, Yao,et al."Reduced irrigation and nitrogen coupled with no-tillage and plastic mulching increase wheat yield in maize-wheat rotation in an arid region".FIELD CROPS RESEARCH 243(2019).