干旱区生态环境知识资源中心(Arid): No-tillage reduces competition and enhances compensatory growth of maize (Zea mays L.) intercropped with pea (Pisum sativum L.)

Arid

DOI	10.1016/j.fcr.2019.107611
	No-tillage reduces competition and enhances compensatory growth of maize (Zea mays L.) intercropped with pea (Pisum sativum L.)
	Zhao, Cai 1,2; Chai, Qiang1,2 ; Cao, Weidong 3; Whalen, Joann K.4; Zhao, Liangxia 1,2; Cai, Lijuan 1,2
通讯作者	Chai, Qiang ; Cao, Weidong
来源期刊	FIELD CROPS RESEARCH
ISSN	0378-4290
EISSN	1872-6852
出版年	2019
卷号	243
英文摘要	Compensatory growth is a mechanism that explains the recovery in stature and yield of a subordinate crop after the dominant competitor is harvested from an intercropping system. This mechanism might be affected by agronomic practices, particularly those related to the crop water supply in arid regions. The objective of this study was to evaluate the effects of tillage and irrigation practices on competition and compensatory growth in pea-maize intercropping systems at Wuwei station in northwest China from 2014 to 2016. The field experiment included two forms of tillage with plastic film (no-tillage, NT; conventional tillage CT) and three irrigation levels (450 mm, I1; 495 mm, I2; 540 mm, I3). As pea was planted first, it was the dominant competitor and caused greater suppression of maize when crops were grown under I1 > I2 > I3 levels in NT than at the corresponding irrigation levels in CT. Compensatory growth of maize after pea harvest was, on average, 8 to 16% greater in the NT than CT. Growing the intercropped maize strip under NT with plastic mulch was as effective as CT with plastic mulch to achieve a favorable yield outcome. However, the intercropped pea yield was 20-29% greater, with 0-5% more maize yield under deficit irrigation level (I1) and the land equivalent ratio was 3-15% greater in NT than CT plots during this study. Yield gains were related to improved water use efficiency, which was 8 to 18% greater in the intercropping system under NT than CT management. We recommend the NT with plastic mulch method as a water-saving strategy that can sustain the productivity of maize-pea intercropping systems while reducing plastic pollution from agricultural activities in arid regions.
英文关键词	Intercropping system No-tillage Plastic film mulching Interspecific relation Irrigation Soil temperature
类型	Article
语种	英语
国家	Peoples R China ; Canada
收录类别	SCI-E
WOS记录号	WOS:000494893700005
WOS关键词	SOIL-TEMPERATURE ; WATER-USE ; USE EFFICIENCY ; YIELD ; WHEAT ; MULCH
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/2XILL650/310695
作者单位	1.Gansu Agr Univ, Gansu Prov Key Lab Arid Land Crop Sci, Lanzhou 730070, Gansu, Peoples R China; 2.Gansu Agr Univ, Coll Agron, Lanzhou 730070, Gansu, Peoples R China; 3.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China; 4.McGill Univ, Dept Nat Resource Sci, Montreal, PQ H9X 3V9, Canada
推荐引用方式 GB/T 7714	Zhao, Cai,Chai, Qiang,Cao, Weidong,et al. No-tillage reduces competition and enhances compensatory growth of maize (Zea mays L.) intercropped with pea (Pisum sativum L.)[J],2019,243.
APA	Zhao, Cai,Chai, Qiang,Cao, Weidong,Whalen, Joann K.,Zhao, Liangxia,&Cai, Lijuan.(2019).No-tillage reduces competition and enhances compensatory growth of maize (Zea mays L.) intercropped with pea (Pisum sativum L.).FIELD CROPS RESEARCH,243.
MLA	Zhao, Cai,et al."No-tillage reduces competition and enhances compensatory growth of maize (Zea mays L.) intercropped with pea (Pisum sativum L.)".FIELD CROPS RESEARCH 243(2019).