Effects of different soil water matric potentials on growth traits and yield characteristics of sunflower (<i>Helianthus annuus</i> Linn.) under drip irrigation in a salinized farmland in northern China

doi:10.1007/s00271-024-00958-y

	*Effects of different soil water matric potentials on growth traits and yield characteristics of sunflower (Helianthus annuus* Linn.) under drip irrigation in a salinized farmland in northern China**
	Wang, Qingyi 1; Zhao, Chunhong 2; Li, Xiaobin 1; Zhu, Wendong 3,5; Kang, Yaohu 3; Cui, Guangxu 4
发表期刊	IRRIGATION SCIENCE
ISSN	0342-7188
	2024-07-25
页码	11
关键词	Controlled irrigation Soil water matric potential Water-salt regulation Sunflower production Growth indicators
DOI	10.1007/s00271-024-00958-y
通讯作者	Li, Xiaobin([email protected]) ; Zhu, Wendong([email protected])
英文摘要	Crop irrigation based on controlling the matric potential of soil water at the depth of soil fixation in the root zone is more suitable than deficit irrigation for promoting cultivation in arid agricultural areas. However, it remains challenging to determine how controlled irrigation (CI) quantifies crop the response to water limitation and to establish the appropriate CI thresholds based on soil water matric potential. This study was conducted on sunflower fields in Hetao Irrigation District, a typical arid agricultural area in China where this crop is widely grown. Five CI treatments were applied for different soil water matric potentials (-8, -16, -24, -32, and - 40 kPa) to study the effects of CI on the soil environment and the relationship with crop yield. The following conclusions were drawn: (1) after 2 years of CI treatments, secondary salinization was significantly reduced below the defined criteria for saline soils (4 dS/m), achieving desalination of the entire soil profile; (2) the application of CI as an irrigation strategy in the management of sunflower fields significantly improved physiological traits during the crucial period of sunflower yield formation by increasing plant height while reducing stem thickness; (3) two treatments with the greatest difference in the lower limit of control of soil water matric potential under this irrigation strategy exhibited a yield variance ratio that increased from 0.14% in the first year to 15.37% in the second year; and (4) the treatment that controlled soil water matric potential at -24 kPa obtained the highest yield of all treatments in the test cycle, leading to an increase in seed yield of up to 1266.66 kg/ha in 2022 compared to the previous year.
资助机构	Scientific and Technological Achievements Transformation Projects of Inner Mongolia Autonomous Region ; Special Project for Transformation of Scientific and Technological achievements of Inner Mongolia ; Agricultural Science and Technology Innovation Program
收录类别	SCI
语种	英语
关键词[WOS]	DEFICIT IRRIGATION ; USE EFFICIENCY ; SEED YIELD ; L. GROWTH ; STRATEGIES ; MANAGEMENT ; QUALITY
研究领域[WOS]	Agriculture ; Water Resources
WOS记录号	WOS:001277188300002
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/36222
专题	支撑部门_黄河三角洲盐碱地农田生态系统观测研究站
通讯作者	Li, Xiaobin; Zhu, Wendong
作者单位	1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China 2.Minist Water Resources, Water Saving Promot Ctr, Beijing 100038, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qingyi,Zhao, Chunhong,Li, Xiaobin,et al. Effects of different soil water matric potentials on growth traits and yield characteristics of sunflower (Helianthus annuus Linn.) under drip irrigation in a salinized farmland in northern China[J]. IRRIGATION SCIENCE,2024:11.
APA	Wang, Qingyi,Zhao, Chunhong,Li, Xiaobin,Zhu, Wendong,Kang, Yaohu,&Cui, Guangxu.(2024).Effects of different soil water matric potentials on growth traits and yield characteristics of sunflower (Helianthus annuus Linn.) under drip irrigation in a salinized farmland in northern China.IRRIGATION SCIENCE,11.
MLA	Wang, Qingyi,et al."Effects of different soil water matric potentials on growth traits and yield characteristics of sunflower (Helianthus annuus Linn.) under drip irrigation in a salinized farmland in northern China".IRRIGATION SCIENCE (2024):11.