干旱区生态环境知识资源中心(Arid): Optimizing water use between intercropped pea and maize through strip row ratio expansion and N fertilizer reduction in arid areas

Arid

DOI	10.1016/j.fcr.2020.108001
	Optimizing water use between intercropped pea and maize through strip row ratio expansion and N fertilizer reduction in arid areas
	Tan, Yan; Hu, Falong; Chai, Qiang; Li, Guang; Zhao, Cai; Yu, Aizhong; Fan, Hong; Fan, Zhilong; Yin, Wen
通讯作者	Chai, Q (corresponding author), Gansu Prov Key Lab Arid Land Crop Sci, Lanzhou 730070, Peoples R China. ; Li, G (corresponding author), Gansu Agr Univ, Coll Forestry, Lanzhou 730070, Peoples R China.
来源期刊	FIELD CROPS RESEARCH
ISSN	0378-4290
EISSN	1872-6852
出版年	2021
卷号	260
英文摘要	Water is the primary limiting factor for crop production in the semi-arid regions. It is imperative to improve water productivity in these water-limited areas. In this research, a field experiment, at Hexi Corridor of northwestern China from 2009 to 2011, was conducted to explore whether changing of strip row ratio and N fertilizer rate will affect water use in maize (Zea mays L.)/pea (Pisum sativum L.) intercropping. Two strip row ratios (i.e. 2 rows of maize and 4 rows of pea, designated as I1; and 3 rows of maize and 4 rows of pea, designated as I2) and three N fertilizer rates (i.e. 0 kg N ha(-1), designated as N0; 90 and 300 kg N ha(-1) for pea and maize, designated as N1; and 135 and 450 kg N ha(-1) for the two crops, designated as N2) were employed in this research. The results showed that I2 improved LAI and reduced soil evaporation across whole growth period, but increased total evapotranspiration by 8.9 % compared to I1. In co-growth period, water competition in I2 was reduced by 19.3 % compared to I1. While in maize independent growth period, water compensation in I2 was improved by 17.2 % compared to I1. For N fertilizer effect, water compensation with N1 and N2 was improved by 16.2 % and 21.1 % compared to N0. The mixed grain yield with I2 was improved by 20.3 % compared to I1; and that with N1 and N2 was improved by 44.0 % and 42.8 % compared to N0. As a result, I2 improved water productivity by 10.5 % compared to I1; and N1 and N2 improved it by 43.8 % and 42.5 % compared to N0, respectively. We concluded that expanding strip row ratio coupled with lower N fertilization could improve water productivity of maize/pea strip intercropping, which is promising in arid areas to save water and achieve the sustainable development goals.
英文关键词	Intercropping Strip row ratio N fertilizer rate Water use Grain yield
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000595860000011
WOS关键词	SOIL EVAPORATION ; IRRIGATION WATER ; CROP COEFFICIENT ; USE EFFICIENCY ; WINTER-WHEAT ; YIELD ; EVAPOTRANSPIRATION ; STRAW ; NITROGEN ; CHINA
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/2XILL650/347882
作者单位	[Tan, Yan; Hu, Falong; Chai, Qiang; Zhao, Cai; Yu, Aizhong; Fan, Hong; Fan, Zhilong; Yin, Wen] Gansu Prov Key Lab Arid Land Crop Sci, Lanzhou 730070, Peoples R China; [Tan, Yan; Li, Guang] Gansu Agr Univ, Coll Forestry, Lanzhou 730070, Peoples R China; [Hu, Falong; Chai, Qiang; Zhao, Cai; Yu, Aizhong; Fan, Zhilong; Yin, Wen] Gansu Agr Univ, Coll Agron, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Tan, Yan,Hu, Falong,Chai, Qiang,et al. Optimizing water use between intercropped pea and maize through strip row ratio expansion and N fertilizer reduction in arid areas[J],2021,260.
APA	Tan, Yan.,Hu, Falong.,Chai, Qiang.,Li, Guang.,Zhao, Cai.,...&Yin, Wen.(2021).Optimizing water use between intercropped pea and maize through strip row ratio expansion and N fertilizer reduction in arid areas.FIELD CROPS RESEARCH,260.
MLA	Tan, Yan,et al."Optimizing water use between intercropped pea and maize through strip row ratio expansion and N fertilizer reduction in arid areas".FIELD CROPS RESEARCH 260(2021).