Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains.

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 adopt...

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Autores principales:	Jasmine Neupane, Wenxuan Guo, Charles P West, Fangyuan Zhang, Zhe Lin
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/060b21a6dcac4d8ca79077c0dcea7e76
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spelling	oai:doaj.org-article:060b21a6dcac4d8ca79077c0dcea7e762021-12-02T20:16:34ZEffects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains.1932-620310.1371/journal.pone.0258496https://doaj.org/article/060b21a6dcac4d8ca79077c0dcea7e762021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0258496https://doaj.org/toc/1932-6203Lack 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.Jasmine NeupaneWenxuan GuoCharles P WestFangyuan ZhangZhe LinPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 10, p e0258496 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jasmine Neupane Wenxuan Guo Charles P West Fangyuan Zhang Zhe Lin Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains.
description	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.
format	article
author	Jasmine Neupane Wenxuan Guo Charles P West Fangyuan Zhang Zhe Lin
author_facet	Jasmine Neupane Wenxuan Guo Charles P West Fangyuan Zhang Zhe Lin
author_sort	Jasmine Neupane
title	Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains.
title_short	Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains.
title_full	Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains.
title_fullStr	Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains.
title_full_unstemmed	Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains.
title_sort	effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/060b21a6dcac4d8ca79077c0dcea7e76
work_keys_str_mv	AT jasmineneupane effectsofirrigationratesoncottonyieldasaffectedbysoilphysicalpropertiesandtopographyinthesouthernhighplains AT wenxuanguo effectsofirrigationratesoncottonyieldasaffectedbysoilphysicalpropertiesandtopographyinthesouthernhighplains AT charlespwest effectsofirrigationratesoncottonyieldasaffectedbysoilphysicalpropertiesandtopographyinthesouthernhighplains AT fangyuanzhang effectsofirrigationratesoncottonyieldasaffectedbysoilphysicalpropertiesandtopographyinthesouthernhighplains AT zhelin effectsofirrigationratesoncottonyieldasaffectedbysoilphysicalpropertiesandtopographyinthesouthernhighplains
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Effects of irrigation rates on cotton yield as affected by soil physical properties and topography in the southern high plains.

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