干旱区生态环境知识资源中心(Arid): Integration of tillage and planting density improves crop production and carbon mitigation of maize/pea intercropping in the oasis irrigation area of northwestern China

Arid

DOI	10.1016/j.fcr.2021.108281
	Integration of tillage and planting density improves crop production and carbon mitigation of maize/pea intercropping in the oasis irrigation area of northwestern China
	Yang, Hongwei; Hu, Falong; Yin, Wen; Chai, Qiang; Zhao, Cai; Yu, Aizhong; Fan, Zhilong; Fan, Hong; Ren, Xuling
通讯作者	Chai, Q (corresponding author), Gansu Prov Key Lab Aridland Crop Sci, Lanzhou 730070, Peoples R China.
来源期刊	FIELD CROPS RESEARCH
ISSN	0378-4290
EISSN	1872-6852
出版年	2021
卷号	272
英文摘要	High yield is a benefit of production system with high input, but usually more CO2 emitted. It is unclear whether to integrate a multi-technology in the intercropping to achieve a high-yielding, low emission, and high efficiency agricultural integrated production system. In order to assess the crop production and carbon mitigation in integrated system, a field experiment of maize/pea intercropping was performed with two tillage (no-tillage and conventional tillage) and three maize plant density (low density-45,000, medium density-60,000, and high density-75,000 plants ha(-1)) in the oasis irrigation area of northwestern China during the 2016-2018. We found that no-tillage improved crop production and carbon mitigation, increasing maize density was able to improve yield in maize/pea intercropping, but increased the carbon emission. From the 3-year average, the integration of no-tillage and medium plant density (NI2) effectively increased the total grain yield (GY) by 14.5 %, reduced carbon emission by 3.5 % compared to conventional tillage with low maize density (CI1). Meanwhile, this integrated system had increased carbon emission efficiency (CEE) by 16.7 % compared to the CI1. For different crop components in maize/pea intercropping, no-tillage mainly reduced the carbon emission of the maize strip, but no significant effect of pea strip by increasing the maize plant density. In addition, this integrated system also increased net primary production (NPP), net ecosystem production (NEP) and carbon sequestration potential by 17.8, 19.9 and 21.8 % compared with CI1, while had highest economic benefits (average 3.1). Therefore, maize/ pea intercropping compound production pattern integrated no-tillage and medium maize plant density (NI2) should be recommended as the high-efficiency model of farming system for resources saving and reducing carbon emission in oasis irrigation area of northwest China.
英文关键词	Intercropping No-tillage Planting density Crop production Carbon mitigation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000709961600010
WOS关键词	SOIL CARBON ; DIOXIDE EMISSIONS ; CO2 EMISSIONS ; WINTER-WHEAT ; YIELD ; FERTILIZER ; SYSTEMS ; ENERGY ; SEQUESTRATION ; FOOTPRINT
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/2XILL650/368394
作者单位	[Yang, Hongwei; Hu, Falong; Yin, Wen; Chai, Qiang; Zhao, Cai; Yu, Aizhong; Fan, Zhilong; Fan, Hong] Gansu Prov Key Lab Aridland Crop Sci, Lanzhou 730070, Peoples R China; [Yang, Hongwei; Hu, Falong; Yin, Wen; Chai, Qiang; Yu, Aizhong; Fan, Zhilong] Gansu Agr Univ, Coll Agron, Lanzhou 730070, Peoples R China; [Ren, Xuling] Stn Popularizing Agr Tech, Pingliang 744000, Peoples R China
推荐引用方式 GB/T 7714	Yang, Hongwei,Hu, Falong,Yin, Wen,et al. Integration of tillage and planting density improves crop production and carbon mitigation of maize/pea intercropping in the oasis irrigation area of northwestern China[J],2021,272.
APA	Yang, Hongwei.,Hu, Falong.,Yin, Wen.,Chai, Qiang.,Zhao, Cai.,...&Ren, Xuling.(2021).Integration of tillage and planting density improves crop production and carbon mitigation of maize/pea intercropping in the oasis irrigation area of northwestern China.FIELD CROPS RESEARCH,272.
MLA	Yang, Hongwei,et al."Integration of tillage and planting density improves crop production and carbon mitigation of maize/pea intercropping in the oasis irrigation area of northwestern China".FIELD CROPS RESEARCH 272(2021).