Divergent effects of straw and biochar single additions on soil water-heat-salt transport and corn productivity in arid salinized irrigation area
Straw return and straw-derived biochar are promising practices for improving soil physicochemical properties and crop production. However, the integrated effects of a single application on soil moisture, heat, salinity transport, and their regulation mechanism on crop water use efficiency (WUE) in s...
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Frontiers Media S.A.
2025-04-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2025.1503943/full |
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| author | Wei Yang Wei Yang Wei Yang Xiaomin Zhang Yibo Zhao Dongliang Zhang Junjie Li Riquan Song Liping Wang Liping Wang Zhongyi Qu |
| author_facet | Wei Yang Wei Yang Wei Yang Xiaomin Zhang Yibo Zhao Dongliang Zhang Junjie Li Riquan Song Liping Wang Liping Wang Zhongyi Qu |
| author_sort | Wei Yang |
| collection | DOAJ |
| description | Straw return and straw-derived biochar are promising practices for improving soil physicochemical properties and crop production. However, the integrated effects of a single application on soil moisture, heat, salinity transport, and their regulation mechanism on crop water use efficiency (WUE) in salt-affected soils are still understood deeply. Four amendments were used: control without any additives (CK), direct return of 10 t ha-1 straw (BJ), and biochar treatments of 15 t ha-1 (B15), and 30 t ha-1 (B30). Application of straw and biochar generally increased the soil moisture content during whole crop growth periods. Temperature in the top 10 cm of soil increased by 0.97°Cfor B30 and 1.08°C for BJ when averaged two growing seasons. The BJ led to a slight reduction in soil pH from 0~30 cm, while biochar application did not significantly increased soil pH during crop growth periods. B30 also did not increased soil salinity of top 30-cm depth while BJ increased soil salinity. The desalting ratio at 0~30 cm at maturity in BJ and B30 two amendments decreased slightly during the first growing season but increased during the second growing season across two years. Straw and biochar also enhanced crop yield, WUE, net income. These effects improved more in the first year than in the second year. The two-year average WUE and net profit values increased more for B30 than for BJ. Thus, B30 amendment is recommended to improve soil water-heat environment, crop WUE, and net income without significantly adjusting the degree of soil salinization. |
| format | Article |
| id | doaj-art-81d7c387656d4c4482209281cf9a8e9d |
| institution | OA Journals |
| issn | 1664-462X |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Plant Science |
| spelling | doaj-art-81d7c387656d4c4482209281cf9a8e9d2025-08-20T02:28:11ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2025-04-011610.3389/fpls.2025.15039431503943Divergent effects of straw and biochar single additions on soil water-heat-salt transport and corn productivity in arid salinized irrigation areaWei Yang0Wei Yang1Wei Yang2Xiaomin Zhang3Yibo Zhao4Dongliang Zhang5Junjie Li6Riquan Song7Liping Wang8Liping Wang9Zhongyi Qu10College of Grassland Science, Inner Mongolia Agricultural University, Hohhot, ChinaKey Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, ChinaAutonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Inner Mongolia Agricultural University, Hohhot, ChinaCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, ChinaCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, ChinaCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, ChinaCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, ChinaWater Resources Research Institute of Inner Mongolia Autonomous, Hohhot, ChinaAutonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Inner Mongolia Agricultural University, Hohhot, ChinaCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, ChinaCollege of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, ChinaStraw return and straw-derived biochar are promising practices for improving soil physicochemical properties and crop production. However, the integrated effects of a single application on soil moisture, heat, salinity transport, and their regulation mechanism on crop water use efficiency (WUE) in salt-affected soils are still understood deeply. Four amendments were used: control without any additives (CK), direct return of 10 t ha-1 straw (BJ), and biochar treatments of 15 t ha-1 (B15), and 30 t ha-1 (B30). Application of straw and biochar generally increased the soil moisture content during whole crop growth periods. Temperature in the top 10 cm of soil increased by 0.97°Cfor B30 and 1.08°C for BJ when averaged two growing seasons. The BJ led to a slight reduction in soil pH from 0~30 cm, while biochar application did not significantly increased soil pH during crop growth periods. B30 also did not increased soil salinity of top 30-cm depth while BJ increased soil salinity. The desalting ratio at 0~30 cm at maturity in BJ and B30 two amendments decreased slightly during the first growing season but increased during the second growing season across two years. Straw and biochar also enhanced crop yield, WUE, net income. These effects improved more in the first year than in the second year. The two-year average WUE and net profit values increased more for B30 than for BJ. Thus, B30 amendment is recommended to improve soil water-heat environment, crop WUE, and net income without significantly adjusting the degree of soil salinization.https://www.frontiersin.org/articles/10.3389/fpls.2025.1503943/fullsalinizationstraw application modesoil physical propertiessoil moisturecorncrop yield |
| spellingShingle | Wei Yang Wei Yang Wei Yang Xiaomin Zhang Yibo Zhao Dongliang Zhang Junjie Li Riquan Song Liping Wang Liping Wang Zhongyi Qu Divergent effects of straw and biochar single additions on soil water-heat-salt transport and corn productivity in arid salinized irrigation area Frontiers in Plant Science salinization straw application mode soil physical properties soil moisture corn crop yield |
| title | Divergent effects of straw and biochar single additions on soil water-heat-salt transport and corn productivity in arid salinized irrigation area |
| title_full | Divergent effects of straw and biochar single additions on soil water-heat-salt transport and corn productivity in arid salinized irrigation area |
| title_fullStr | Divergent effects of straw and biochar single additions on soil water-heat-salt transport and corn productivity in arid salinized irrigation area |
| title_full_unstemmed | Divergent effects of straw and biochar single additions on soil water-heat-salt transport and corn productivity in arid salinized irrigation area |
| title_short | Divergent effects of straw and biochar single additions on soil water-heat-salt transport and corn productivity in arid salinized irrigation area |
| title_sort | divergent effects of straw and biochar single additions on soil water heat salt transport and corn productivity in arid salinized irrigation area |
| topic | salinization straw application mode soil physical properties soil moisture corn crop yield |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2025.1503943/full |
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