干旱区生态环境知识资源中心(Arid): Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains

Arid

DOI	10.1371/journal.pone.0258496
	Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains
	Neupane, Jasmine; Guo, Wenxuan; West, Charles P.; Zhang, Fangyuan; Lin, Zhe
通讯作者	Guo, WX (corresponding author)，Texas Tech Univ, Dept Plant & Soil Sci, Lubbock, TX 79409 USA. ; Guo, WX (corresponding author)，Texas A&M AgriLife Res, Dept Soil & Crop Sci, Lubbock, TX 79403 USA.
来源期刊	PLOS ONE
ISSN	1932-6203
出版年	2021
卷号	16 期号:10
英文摘要	Lack of precipitation and groundwater for irrigation limits crop production in semi-arid regions, such as the Southern High Plains (SHP). Advanced technologies, such as variable rate irrigation (VRI), can conserve water and improve water use efficiency for sustainable agriculture. However, the adoption of VRI is hindered by the lack of on-farm research focusing on the feasibility of VRI. The objective of this study was to assess the effect of irrigation rates on cotton yield as affected by soil physical properties and topography in the Southern High Plains. This study was conducted in two fields within a 194-ha commercially managed farm in Hale County, Texas, in 2017. An irrigation treatment with three rates was implemented in a randomized complete block design with two replications as separate blocks in each field. A total of 230 composite soil samples were collected from the farm in spring 2017 and analyzed for texture. Information on apparent soil electrical conductivity (ECa), elevation, and final yield were collected from the fields. A statistical model showed that the effect of irrigation rates on cotton yield depended on its interaction with soil physical properties and topography. For example, areas with slope >2% and sand content >50% had no significant response to higher irrigation rates. This model suggests that applying irrigation amounts based on the yield response can be a basis for VRI. This study provides valuable information for site-specific irrigation to optimize crop production in fields with significant variability in soil physical properties and topography.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000755029000004
WOS关键词	VARIABLE-RATE IRRIGATION ; TEXAS HIGH-PLAINS ; ELECTRICAL-CONDUCTIVITY ; MANAGEMENT ; WATER ; NITROGEN ; CONSERVATION ; SYSTEM
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375886
作者单位	[Neupane, Jasmine; Guo, Wenxuan; West, Charles P.; Lin, Zhe] Texas Tech Univ, Dept Plant & Soil Sci, Lubbock, TX 79409 USA; [Guo, Wenxuan] Texas A&M AgriLife Res, Dept Soil & Crop Sci, Lubbock, TX 79403 USA; [Zhang, Fangyuan] Texas Tech Univ, Dept Math & Stat, Lubbock, TX 79409 USA
推荐引用方式 GB/T 7714	Neupane, Jasmine,Guo, Wenxuan,West, Charles P.,et al. Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains[J],2021,16(10).
APA	Neupane, Jasmine,Guo, Wenxuan,West, Charles P.,Zhang, Fangyuan,&Lin, Zhe.(2021).Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains.PLOS ONE,16(10).
MLA	Neupane, Jasmine,et al."Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains".PLOS ONE 16.10(2021).