干旱区生态环境知识资源中心(Arid): Root distribution, soil water depletion, and water productivity of sweet corn under deficit irrigation and biochar application

Arid

DOI	10.1016/j.agwat.2023.108192
	Root distribution, soil water depletion, and water productivity of sweet corn under deficit irrigation and biochar application
	Singh, Manpreet; Singh, Sukhbir; Deb, Sanjit; Ritchie, Glen
通讯作者	Singh, S
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2023
卷号	279
英文摘要	Root modifications can play a vital role in crop adjustments to soil water deficit. It is important to understand root growth and soil water depletion patterns to develop effective cropping systems, especially in semi-arid regions like Texas High Plains (THP). This study evaluated root growth, soil water depletion, and water pro-ductivity (WP) of sweet corn under three deficit irrigation treatments [100 %, 70 % and 40 % crop evapo-transpiration (ETc)] and biochar application (hardwood and softwood). The experimental units were replicated 4 times in a split-plot design. The results revealed no interaction between irrigation and biochar treatments for almost all measured parameters. The 70 % ETc treatment increased the root length density (RLD) over 100 % ETc during 2019, while no differences were observed among irrigation treatments in 2020. Both deficit irrigations (70 % and 40 % ETc) increased soil water depletion compared to 100 % ETc, the highest being in 40 % ETc. The 70 % ETc maintained a similar yield and increased WP by 21 % compared to 100 % ETc across two years. However, 40 % ETc resulted in significant decline in yield and WP in 2020. The hardwood biochar increased RLD over no biochar treatment without affecting the soil water status and WP. Long-term studies are needed to investigate biochar effects beyond two years of application. In case of limited water availability, 70 % ETc can be recommended as an alternative to 100 % ETc in the THP of the US.
英文关键词	Soil water content Drought stress Semi-arid Evapotranspiration Root length density
类型	Article
语种	英语
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000964958300001
WOS关键词	MULCHED DRIP IRRIGATION ; USE EFFICIENCY ; WINTER-WHEAT ; GRAIN-YIELD ; PLANT-GROWTH ; MAIZE ; QUALITY ; COTTON ; FIELD ; EXTRACTION
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395042
推荐引用方式 GB/T 7714	Singh, Manpreet,Singh, Sukhbir,Deb, Sanjit,et al. Root distribution, soil water depletion, and water productivity of sweet corn under deficit irrigation and biochar application[J],2023,279.
APA	Singh, Manpreet,Singh, Sukhbir,Deb, Sanjit,&Ritchie, Glen.(2023).Root distribution, soil water depletion, and water productivity of sweet corn under deficit irrigation and biochar application.AGRICULTURAL WATER MANAGEMENT,279.
MLA	Singh, Manpreet,et al."Root distribution, soil water depletion, and water productivity of sweet corn under deficit irrigation and biochar application".AGRICULTURAL WATER MANAGEMENT 279(2023).