干旱区生态环境知识资源中心(Arid): Evaluation of the effect of soil salinity on the crop coefficient (Kc) for cotton (Gossypium hirsutum L.) under mulched drip irrigation in arid regions

Arid

DOI	10.1007/s00271-022-00842-7
	Evaluation of the effect of soil salinity on the crop coefficient (Kc) for cotton (Gossypium hirsutum L.) under mulched drip irrigation in arid regions
	Ma, Chao; Wang, Jun; Li, Jiusheng
通讯作者	Wang, J ; Li, JS
来源期刊	IRRIGATION SCIENCE
ISSN	0342-7188
EISSN	1432-1319
出版年	2023
卷号	41 期号:2 页码:235-249
英文摘要	Soil salinity and associated problems are the major challenge for the arid region of Northwest China. Strategies to cope with salinity, including a better understanding of the impacts of soil salinity on the crop coefficient (K-c), are essential for precision irrigation in arid regions. In this study, two years of non-weighing lysimeter (NWL) experiments were conducted to investigate the K-c of cotton (Gossypium hirsutum L.) under different degrees of soil salinization. The stress coefficient (K-s) model was modified and validated based on the NWL and field experiments. Three irrigation water qualities (GW, groundwater, 1.27 g l(-1); BW, brackish water, 3.03 g l(-1); SW, saline water, 4.90 g l(-1)) were applied to mulched-drip irrigated cotton. Both NWL and field experiments revealed that BW and SW irrigation increased the soil salt content which reached the moderately saline soil level. Adjusted for local weather, the Kc-Local of cotton for the initial, middle and end seasons was 0.29, 1.10 and 0.52 under slightly saline soil (GW irrigation) and 0.24, 0.98 and 0.46 under moderately saline soil (BW and SW irrigation). In addition, the linear negative correlation relationships of soil ECe with yield response factor (K-y) and slope b (reduction in yield per increase in ECe beyond the ECe threshold) were developed. Furthermore, the K-s model was modified under salt stress conditions, which provided an acceptable K-s estimation under field conditions. These findings could be helpful for efficient water management in cotton cropping systems under mulched drip irrigation in arid regions.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000906616700001
WOS关键词	WATER-USE ; EVAPOTRANSPIRATION ; FIELD
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/2XILL650/397069
推荐引用方式 GB/T 7714	Ma, Chao,Wang, Jun,Li, Jiusheng. Evaluation of the effect of soil salinity on the crop coefficient (Kc) for cotton (Gossypium hirsutum L.) under mulched drip irrigation in arid regions[J],2023,41(2):235-249.
APA	Ma, Chao,Wang, Jun,&Li, Jiusheng.(2023).Evaluation of the effect of soil salinity on the crop coefficient (Kc) for cotton (Gossypium hirsutum L.) under mulched drip irrigation in arid regions.IRRIGATION SCIENCE,41(2),235-249.
MLA	Ma, Chao,et al."Evaluation of the effect of soil salinity on the crop coefficient (Kc) for cotton (Gossypium hirsutum L.) under mulched drip irrigation in arid regions".IRRIGATION SCIENCE 41.2(2023):235-249.