干旱区生态环境知识资源中心(Arid): Soil conditions affect cotton root distribution and cotton yield under mulched drip irrigation

Arid

DOI	10.1016/j.fcr.2020.107743
	Soil conditions affect cotton root distribution and cotton yield under mulched drip irrigation
	Chen, Wenling 1,2; Jin, Menggui 1,2; Ferre, Ty P. A.3; Liu, Yanfeng 1; Huang, Jinou 1,4; Xian, Yang 1,2
通讯作者	Jin, Menggui
来源期刊	FIELD CROPS RESEARCH
ISSN	0378-4290
EISSN	1872-6852
出版年	2020
卷号	249
英文摘要	Film-mulched drip irrigation with brackish water has been used widely for cotton (Gossypium hirsutum L.) production in arid regions. Full consideration of the promise of brackish water irrigation requires consideration of the dependence of cotton root characteristics on soil conditions. To date, these dependences are complex and poorly understood. The present study compared the impacts of soil temperature, water and salinity on root characteristics on cotton yield for brackish water irrigation treatment (BWT) and fresh water irrigation treatment (FWT). Spatial differences were observed for cotton root mass, root length, root surface-area and root volume distribution that corresponded with differences in the distributions of soil conditions. There existed a strikingly linear relationship between cotton root length and root mass. Soil temperature did not exert clear control on root system growth. Lower average root density and coarser roots were observed for BWT than for FWT as a result of the reduced soil temperature and the elevated soil salinity associated with BWT. Cotton shoot growth was more sensitive than root growth to salt stress for BWT. Higher root density and fine root proportion for FWT than BWT led to higher cotton yield. That is, more cotton roots were observed in the shallow mulched zone, which corresponded with high root water uptake rate and salt accumulation. Our study indicated that the easily-measured cotton root mass could be used as a practical surrogate for root length under mulched drip irrigation. Subsurface drip irrigation with drip tapes set in the shallow mulched zone may further promote cotton root system growth, allowing for sustainable cotton production with brackish water irrigation.
英文关键词	Arid region Soil conditions Cotton root distribution Soil-plant interaction Brackish water use efficiency
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000527340900012
WOS关键词	USE EFFICIENCY ; SALINITY DISTRIBUTION ; GRAIN-YIELD ; WATER-USE ; FIELD ; SALT ; TEMPERATURE ; ACCUMULATION ; PHOSPHORUS ; BRACKISH
WOS类目	Agronomy
WOS研究方向	Agriculture
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314507
作者单位	1.China Univ Geosci, Sch Environm Studies, Wuhan 430078, Hubei, Peoples R China; 2.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430078, Peoples R China; 3.Univ Arizona, Dept Hydrol & Atmospher Sci, 1133 E James & Rogers Way,JW Harshbarger Bldg, Tucson, AZ 85721 USA; 4.Zhejiang Inst Geoenvironm Monitoring, Hangzhou 310007, Peoples R China
推荐引用方式 GB/T 7714	Chen, Wenling,Jin, Menggui,Ferre, Ty P. A.,et al. Soil conditions affect cotton root distribution and cotton yield under mulched drip irrigation[J]. University of Arizona,2020,249.
APA	Chen, Wenling,Jin, Menggui,Ferre, Ty P. A.,Liu, Yanfeng,Huang, Jinou,&Xian, Yang.(2020).Soil conditions affect cotton root distribution and cotton yield under mulched drip irrigation.FIELD CROPS RESEARCH,249.
MLA	Chen, Wenling,et al."Soil conditions affect cotton root distribution and cotton yield under mulched drip irrigation".FIELD CROPS RESEARCH 249(2020).