Effects of Long‐Term Saline Water Irrigation on Cotton Emergence and Seedling Growth
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2025
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| author | Yunchao Xie Hongkai Dang Yudong Zheng Dan Liu Chunlian Zheng Kejiang Li Zaffar Malik Anqi Zhang Junpeng Zhang |
| author_facet | Yunchao Xie Hongkai Dang Yudong Zheng Dan Liu Chunlian Zheng Kejiang Li Zaffar Malik Anqi Zhang Junpeng Zhang Yunchao Xie Hongkai Dang Yudong Zheng Dan Liu Chunlian Zheng Kejiang Li Zaffar Malik Anqi Zhang Junpeng Zhang |
| collection | Wiley Open Access |
| contents | Effects of Long‐Term Saline Water Irrigation on Cotton Emergence and Seedling Growth Yunchao Xie Hongkai Dang Yudong Zheng Dan Liu Chunlian Zheng Kejiang Li Zaffar Malik Anqi Zhang Junpeng Zhang Journal of Agronomy and Crop Science ABSTRACT The scarcity of good‐quality irrigation water has driven farmers to use saline water for crop production, which can adversely affect soil fertility and plant growth. Therefore, a long‐term (2006–2025) field experiment was conducted to investigate the effects of saline water application by different irrigation methods on cotton seedling emergence and growth, and to promote safe saline water use. The field experiment employed two irrigation methods, namely border irrigation (B) and furrow irrigation with channels (F), with each irrigation method paired with six salt concentration levels (1.3, 3.4, 7.1, 10.6, 14.1, 17.7 dS·m −1 ; 1.3 dS·m −1 was the freshwater control). Observations showed that compared with furrow irrigation, the soil moisture contents and salinity levels under border irrigation increased by 0.9%–4.1% and 0.1%–27.7%, respectively. Additionally, soil moisture content and salinity rose as irrigation water salinity increased in both irrigation methods. Topsoil (0–20 cm) moisture content and salinity exhibited significant interannual fluctuations, with no steady salinity accumulation due to precipitation and associated climatic conditions. The seedling establishment rate declined with increasing water salinity under both methods; border irrigation was superior at water salinity ≤ 8.3 dS·m −1 , while furrow irrigation performed better above this threshold. Stability and sustainability of the establishment rate decreased markedly at water salinity ≥ 10.6 dS·m −1 . The relative establishment rate over the years (referenced to the freshwater treatments with an electrical conductivity of 1.3 dS·m −1 ) exhibited a significant quadratic relationship with irrigation water salinity. When the seedling establishment rate began to decline and reached a 10% reduction, the corresponding irrigation water salinity thresholds for border irrigation were 2.2 dS·m −1 and 10.0 dS·m −1 , and for furrow irrigation were 1.9 dS·m −1 and 10.4 dS·m −1 , respectively. High salinity significantly delayed cotton emergence and reduced seedling growth parameters (plant height, leaf area, and dry matter weight). Seedling growth was better under border irrigation than under furrow irrigation at irrigation water salinity ≤ 10.6 dS·m −1 . This study provides a scientific basis and practical reference for cotton cultivation using local saline water resources. 10.1111/jac.70149 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1111/jac.70149 |
| format | Artículo Open Access |
| id | wiley_oa_10_1111_jac_70149 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2025 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Effects of Long‐Term Saline Water Irrigation on Cotton Emergence and Seedling Growth Yunchao Xie Hongkai Dang Yudong Zheng Dan Liu Chunlian Zheng Kejiang Li Zaffar Malik Anqi Zhang Junpeng Zhang Journal of Agronomy and Crop Science Effects of Long‐Term Saline Water Irrigation on Cotton Emergence and Seedling Growth Yunchao Xie Hongkai Dang Yudong Zheng Dan Liu Chunlian Zheng Kejiang Li Zaffar Malik Anqi Zhang Junpeng Zhang Journal of Agronomy and Crop Science ABSTRACT The scarcity of good‐quality irrigation water has driven farmers to use saline water for crop production, which can adversely affect soil fertility and plant growth. Therefore, a long‐term (2006–2025) field experiment was conducted to investigate the effects of saline water application by different irrigation methods on cotton seedling emergence and growth, and to promote safe saline water use. The field experiment employed two irrigation methods, namely border irrigation (B) and furrow irrigation with channels (F), with each irrigation method paired with six salt concentration levels (1.3, 3.4, 7.1, 10.6, 14.1, 17.7 dS·m −1 ; 1.3 dS·m −1 was the freshwater control). Observations showed that compared with furrow irrigation, the soil moisture contents and salinity levels under border irrigation increased by 0.9%–4.1% and 0.1%–27.7%, respectively. Additionally, soil moisture content and salinity rose as irrigation water salinity increased in both irrigation methods. Topsoil (0–20 cm) moisture content and salinity exhibited significant interannual fluctuations, with no steady salinity accumulation due to precipitation and associated climatic conditions. The seedling establishment rate declined with increasing water salinity under both methods; border irrigation was superior at water salinity ≤ 8.3 dS·m −1 , while furrow irrigation performed better above this threshold. Stability and sustainability of the establishment rate decreased markedly at water salinity ≥ 10.6 dS·m −1 . The relative establishment rate over the years (referenced to the freshwater treatments with an electrical conductivity of 1.3 dS·m −1 ) exhibited a significant quadratic relationship with irrigation water salinity. When the seedling establishment rate began to decline and reached a 10% reduction, the corresponding irrigation water salinity thresholds for border irrigation were 2.2 dS·m −1 and 10.0 dS·m −1 , and for furrow irrigation were 1.9 dS·m −1 and 10.4 dS·m −1 , respectively. High salinity significantly delayed cotton emergence and reduced seedling growth parameters (plant height, leaf area, and dry matter weight). Seedling growth was better under border irrigation than under furrow irrigation at irrigation water salinity ≤ 10.6 dS·m −1 . This study provides a scientific basis and practical reference for cotton cultivation using local saline water resources. 10.1111/jac.70149 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | Effects of Long‐Term Saline Water Irrigation on Cotton Emergence and Seedling Growth |
| topic | Journal of Agronomy and Crop Science |
| url | https://onlinelibrary.wiley.com/doi/10.1111/jac.70149 |