Grain yield and water productivity of maize under deficit irrigation and salt stress: Evidences from field experiment and literatures
Drought and salt stress pose great challenges to global agriculture, yet mild deficit irrigation and salt stress have the potential to enhance water productivity (WP). However, it is not desirable to improve WP by reducing irrigation if it leads to a decrease in yield. This study aimed to investigat...
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Elsevier
2025-02-01
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| Series: | Agricultural Water Management |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378377424005961 |
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| author | Jia Gao Lin Li Risheng Ding Shaozhong Kang Taisheng Du Ling Tong Jian Kang Wanli Xu Guangmu Tang |
| author_facet | Jia Gao Lin Li Risheng Ding Shaozhong Kang Taisheng Du Ling Tong Jian Kang Wanli Xu Guangmu Tang |
| author_sort | Jia Gao |
| collection | DOAJ |
| description | Drought and salt stress pose great challenges to global agriculture, yet mild deficit irrigation and salt stress have the potential to enhance water productivity (WP). However, it is not desirable to improve WP by reducing irrigation if it leads to a decrease in yield. This study aimed to investigate the effects of deficit irrigation and salt stress on maize yield and WP, as well as the underlying mechanism, and to explore agronomic practices to jointly improve maize yield and WP based on literature analysis. To achieve this, we conducted a 2–year field experiment with two maize genotypes (ZD958 and XY335), involving two irrigation levels (F: full irrigation and D: deficit irrigation, 65 % ET/80 % ET) and two salt levels (S0: no salt and S1: 2 ‰). Additionally, we performed a synthesis analysis of peer–reviewed literature to assess the effects of deficit irrigation and/or salt stress on maize yield, evapotranspiration and WP. Our results showed that both deficit irrigation and salt stress increased leaf intrinsic water use efficiency (WUEi) and WP. Compared to the control (FS0), WP significantly increased by 11.5 % in DS0 and by 9.6 % in FS1, while decreased by 3.5 % in DS1. Furthermore, the increase in WP under single water and salt stress was attributed to the reduction in ET, while the decrease in WP under combined stress was attributed to the negative effect on grain yield. Both deficit irrigation and salt stress had adverse effects on leaf morpho–physiological traits and dry matter accumulation, with salt severely inhibiting the recovery ability after rewatering. Literature analysis showed that deficit irrigation increased WP by 10.5 %, and when coupled with agronomic practices such as controlled–release fertilizers and mulching, WP improved by 19.2 % without reducing the grain yield of maize. Deficit irrigation coupled with agronomic practices can achieve a win–win situation for both maize yield and WP. This study provides valuable insights into improving irrigation practices dealing with water shortages and salt stress in arid and semi–arid regions, further ensuring national food security. |
| format | Article |
| id | doaj-art-9eba7388398d4c789b0e1c0cec4f2abc |
| institution | Kabale University |
| issn | 1873-2283 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Agricultural Water Management |
| spelling | doaj-art-9eba7388398d4c789b0e1c0cec4f2abc2025-01-07T04:16:56ZengElsevierAgricultural Water Management1873-22832025-02-01307109260Grain yield and water productivity of maize under deficit irrigation and salt stress: Evidences from field experiment and literaturesJia Gao0Lin Li1Risheng Ding2Shaozhong Kang3Taisheng Du4Ling Tong5Jian Kang6Wanli Xu7Guangmu Tang8State Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing, China; National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture, Wuwei, Gansu 733009, China; Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, ChinaState Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing, China; National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture, Wuwei, Gansu 733009, China; Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, ChinaState Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing, China; National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture, Wuwei, Gansu 733009, China; Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, China; Corresponding author at: State Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing, China.State Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing, China; National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture, Wuwei, Gansu 733009, China; Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, ChinaState Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing, China; National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture, Wuwei, Gansu 733009, China; Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, ChinaState Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing, China; National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture, Wuwei, Gansu 733009, China; Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, ChinaState Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing, China; National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture, Wuwei, Gansu 733009, China; Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, ChinaInstitute of Soil Fertilizer and Agricultural Water Saving, Xinjiang Academy of Agricultural Sciences/Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Saline-Alkali Land in Arid and Semi-Arid Regions), Urumqi 830091, ChinaInstitute of Soil Fertilizer and Agricultural Water Saving, Xinjiang Academy of Agricultural Sciences/Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Saline-Alkali Land in Arid and Semi-Arid Regions), Urumqi 830091, ChinaDrought and salt stress pose great challenges to global agriculture, yet mild deficit irrigation and salt stress have the potential to enhance water productivity (WP). However, it is not desirable to improve WP by reducing irrigation if it leads to a decrease in yield. This study aimed to investigate the effects of deficit irrigation and salt stress on maize yield and WP, as well as the underlying mechanism, and to explore agronomic practices to jointly improve maize yield and WP based on literature analysis. To achieve this, we conducted a 2–year field experiment with two maize genotypes (ZD958 and XY335), involving two irrigation levels (F: full irrigation and D: deficit irrigation, 65 % ET/80 % ET) and two salt levels (S0: no salt and S1: 2 ‰). Additionally, we performed a synthesis analysis of peer–reviewed literature to assess the effects of deficit irrigation and/or salt stress on maize yield, evapotranspiration and WP. Our results showed that both deficit irrigation and salt stress increased leaf intrinsic water use efficiency (WUEi) and WP. Compared to the control (FS0), WP significantly increased by 11.5 % in DS0 and by 9.6 % in FS1, while decreased by 3.5 % in DS1. Furthermore, the increase in WP under single water and salt stress was attributed to the reduction in ET, while the decrease in WP under combined stress was attributed to the negative effect on grain yield. Both deficit irrigation and salt stress had adverse effects on leaf morpho–physiological traits and dry matter accumulation, with salt severely inhibiting the recovery ability after rewatering. Literature analysis showed that deficit irrigation increased WP by 10.5 %, and when coupled with agronomic practices such as controlled–release fertilizers and mulching, WP improved by 19.2 % without reducing the grain yield of maize. Deficit irrigation coupled with agronomic practices can achieve a win–win situation for both maize yield and WP. This study provides valuable insights into improving irrigation practices dealing with water shortages and salt stress in arid and semi–arid regions, further ensuring national food security.http://www.sciencedirect.com/science/article/pii/S0378377424005961Regulated deficit irrigationSalt stressWater productivityEvapotranspirationStomatal characteristics |
| spellingShingle | Jia Gao Lin Li Risheng Ding Shaozhong Kang Taisheng Du Ling Tong Jian Kang Wanli Xu Guangmu Tang Grain yield and water productivity of maize under deficit irrigation and salt stress: Evidences from field experiment and literatures Agricultural Water Management Regulated deficit irrigation Salt stress Water productivity Evapotranspiration Stomatal characteristics |
| title | Grain yield and water productivity of maize under deficit irrigation and salt stress: Evidences from field experiment and literatures |
| title_full | Grain yield and water productivity of maize under deficit irrigation and salt stress: Evidences from field experiment and literatures |
| title_fullStr | Grain yield and water productivity of maize under deficit irrigation and salt stress: Evidences from field experiment and literatures |
| title_full_unstemmed | Grain yield and water productivity of maize under deficit irrigation and salt stress: Evidences from field experiment and literatures |
| title_short | Grain yield and water productivity of maize under deficit irrigation and salt stress: Evidences from field experiment and literatures |
| title_sort | grain yield and water productivity of maize under deficit irrigation and salt stress evidences from field experiment and literatures |
| topic | Regulated deficit irrigation Salt stress Water productivity Evapotranspiration Stomatal characteristics |
| url | http://www.sciencedirect.com/science/article/pii/S0378377424005961 |
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