干旱区生态环境知识资源中心(Arid): Increasing cotton lint yield and water use efficiency for subsurface drip irrigation without mulching

Arid

DOI	10.3389/fpls.2024.1433719
	Increasing cotton lint yield and water use efficiency for subsurface drip irrigation without mulching
	Li, Nan-nan; Li, Jun-hong; Shi, Xiao-juan; Shi, Feng; Tian, Yu; Wang, Jun; Hao, Xian-zhe; Luo, Hong-hai; Wang, Zhan-biao
通讯作者	Luo, HH
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2024
卷号	15
英文摘要	Introduction Planting without mulching can eliminate the residual film pollution caused by the long-term use of plastic film covers, but it will increase soil moisture evaporation and heat loss and severely reduce water use efficiency and cotton productivity in cotton (Gossypium hirsutum L.) fields in arid regions. It is unclear whether the advantages of subsurface drip irrigation and nighttime irrigation can be leveraged to reduce the amount of irrigation applied in fields, improve the soil and leaf hydrothermal environments, and increase the synchronicity of yield and water use efficiency (WUE).Methods Therefore, in a two-year field experiment (2019-2020), cotton was grown under different irrigation treatments (I5, 3753 m3 ha-1; I4, 3477 m3 ha-1; I3, 3201 m3 ha-1; I2, 2925 m3 ha-1; and I1, 2649 m3 ha-1). The soil volumetric moisture content, soil temperature, leaf relative water content (RWC), daily changes in gas exchange parameters, lint yield, and WUE were evaluated.Results and discussion The results showed that reducing irrigation can reduce the soil volumetric moisture content (0-40 cm soil layer), increase the soil temperature and soil temperature conductivity, and increase the leaf temperature, intercellular carbon dioxide concentration (Ci), and WUE; however, reducing irrigation is not conducive to increasing the leaf RWC, net photosynthetic rate (Pn), stomatal conductance (Gs), or transpiration rate (Tr). There was no significant difference in WUE between the I3 and I4 treatments from 8:00 to 20:00, but the lint yield in these treatments increased by 2.8-12.2% compared to that in the I5 treatment, with no significant difference between the I3 and I4 treatments. In addition, a related analysis revealed that the positive effects of the leaf hydrothermal environment on the Pn and soil temperature on the WUE occurs during the same period (10:00-16:00). Overall, an irrigation amount of 3201-3477 m3 ha-1 applied with a subsurface nighttime irrigation system without mulching can enhance the soil moisture content and soil temperature, maintain a high photosynthetic capacity, and increase the lint yield and WUE. These results revealed that the negative impacts of plastic film contamination in arid areas can be alleviated.
英文关键词	subsurface drip irrigation without mulching model soil hydrothermal environment water use efficiency photosynthesis
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001285551800001
WOS关键词	RESIDUAL PLASTIC FILM ; BIODEGRADABLE FILMS ; SOIL-TEMPERATURE ; IMPROVES ; PHOTOSYNTHESIS ; NITROGEN ; BIOMASS ; TRAITS ; GROWTH ; FURROW
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403864
推荐引用方式 GB/T 7714	Li, Nan-nan,Li, Jun-hong,Shi, Xiao-juan,et al. Increasing cotton lint yield and water use efficiency for subsurface drip irrigation without mulching[J],2024,15.
APA	Li, Nan-nan.,Li, Jun-hong.,Shi, Xiao-juan.,Shi, Feng.,Tian, Yu.,...&Wang, Zhan-biao.(2024).Increasing cotton lint yield and water use efficiency for subsurface drip irrigation without mulching.FRONTIERS IN PLANT SCIENCE,15.
MLA	Li, Nan-nan,et al."Increasing cotton lint yield and water use efficiency for subsurface drip irrigation without mulching".FRONTIERS IN PLANT SCIENCE 15(2024).