Effect of irrigation regime on grain yield, water productivity, and methane emissions in dry direct-seeded rice grown in raised beds with wheat straw incorporation
Dry direct-seeded rice grown in raised beds is becoming an important practice in the wheat–rice rotation system in China. However, little information has been available on the effect of various irrigation regimes on grain yield, water productivity (WP), nitrogen use efficiency (NUE), and greenhouse...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2018
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/164792 |
| _version_ | 1855526999780491264 |
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| author | Wang, Zhiqin Gu, Daojian Beebout, Sarah S. Zhang, Hao Liu, Lijun Yang, Jianchang Zhang, Jianhua |
| author_browse | Beebout, Sarah S. Gu, Daojian Liu, Lijun Wang, Zhiqin Yang, Jianchang Zhang, Hao Zhang, Jianhua |
| author_facet | Wang, Zhiqin Gu, Daojian Beebout, Sarah S. Zhang, Hao Liu, Lijun Yang, Jianchang Zhang, Jianhua |
| author_sort | Wang, Zhiqin |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Dry direct-seeded rice grown in raised beds is becoming an important practice in the wheat–rice rotation system in China. However, little information has been available on the effect of various irrigation regimes on grain yield, water productivity (WP), nitrogen use efficiency (NUE), and greenhouse gas emission in this practice. This study investigated the question using two rice cultivars in 2015 and 2016 grown in soil with wheat straw incorporated into it. Rice seeds were directly seeded into raised beds, which were maintained under aerobic conditions during the early seedling period. Three irrigation regimes: continuous flooding (CF), alternate wetting and drying (AWD), and furrow irrigation (FI), were applied from 4.5-leaf-stage to maturity. Compared with CF, both AWD and FI significantly increased grain yield, WP, and internal NUE, with greater increases under the FI regime. The two cultivars showed the same tendency in both years. Both AWD and FI markedly increased soil redox potential, root and shoot biomass, root oxidation activity, leaf photosynthetic NUE, and harvest index and markedly decreased global warming potential, owing to substantial reduction in seasonal CH4 emissions. The results demonstrate that adoption of either AWD or FI could increase grain yield and resource-use efficiency and reduce environmental risks in dry direct-seeded rice grown on raised beds with wheat straw incorporation in the wheat–rice rotation system. |
| format | Journal Article |
| id | CGSpace164792 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1647922024-12-19T14:12:43Z Effect of irrigation regime on grain yield, water productivity, and methane emissions in dry direct-seeded rice grown in raised beds with wheat straw incorporation Wang, Zhiqin Gu, Daojian Beebout, Sarah S. Zhang, Hao Liu, Lijun Yang, Jianchang Zhang, Jianhua direct sowing dry seeding irrigation methane emission raised beds straw water management water productivity wheat Dry direct-seeded rice grown in raised beds is becoming an important practice in the wheat–rice rotation system in China. However, little information has been available on the effect of various irrigation regimes on grain yield, water productivity (WP), nitrogen use efficiency (NUE), and greenhouse gas emission in this practice. This study investigated the question using two rice cultivars in 2015 and 2016 grown in soil with wheat straw incorporated into it. Rice seeds were directly seeded into raised beds, which were maintained under aerobic conditions during the early seedling period. Three irrigation regimes: continuous flooding (CF), alternate wetting and drying (AWD), and furrow irrigation (FI), were applied from 4.5-leaf-stage to maturity. Compared with CF, both AWD and FI significantly increased grain yield, WP, and internal NUE, with greater increases under the FI regime. The two cultivars showed the same tendency in both years. Both AWD and FI markedly increased soil redox potential, root and shoot biomass, root oxidation activity, leaf photosynthetic NUE, and harvest index and markedly decreased global warming potential, owing to substantial reduction in seasonal CH4 emissions. The results demonstrate that adoption of either AWD or FI could increase grain yield and resource-use efficiency and reduce environmental risks in dry direct-seeded rice grown on raised beds with wheat straw incorporation in the wheat–rice rotation system. 2018-10 2024-12-19T12:54:19Z 2024-12-19T12:54:19Z Journal Article https://hdl.handle.net/10568/164792 en Open Access Elsevier Wang, Zhiqin; Gu, Daojian; Beebout, Sarah S.; Zhang, Hao; Liu, Lijun; Yang, Jianchang and Zhang, Jianhua. 2018. Effect of irrigation regime on grain yield, water productivity, and methane emissions in dry direct-seeded rice grown in raised beds with wheat straw incorporation. The Crop Journal, Volume 6 no. 5 p. 495-508 |
| spellingShingle | direct sowing dry seeding irrigation methane emission raised beds straw water management water productivity wheat Wang, Zhiqin Gu, Daojian Beebout, Sarah S. Zhang, Hao Liu, Lijun Yang, Jianchang Zhang, Jianhua Effect of irrigation regime on grain yield, water productivity, and methane emissions in dry direct-seeded rice grown in raised beds with wheat straw incorporation |
| title | Effect of irrigation regime on grain yield, water productivity, and methane emissions in dry direct-seeded rice grown in raised beds with wheat straw incorporation |
| title_full | Effect of irrigation regime on grain yield, water productivity, and methane emissions in dry direct-seeded rice grown in raised beds with wheat straw incorporation |
| title_fullStr | Effect of irrigation regime on grain yield, water productivity, and methane emissions in dry direct-seeded rice grown in raised beds with wheat straw incorporation |
| title_full_unstemmed | Effect of irrigation regime on grain yield, water productivity, and methane emissions in dry direct-seeded rice grown in raised beds with wheat straw incorporation |
| title_short | Effect of irrigation regime on grain yield, water productivity, and methane emissions in dry direct-seeded rice grown in raised beds with wheat straw incorporation |
| title_sort | effect of irrigation regime on grain yield water productivity and methane emissions in dry direct seeded rice grown in raised beds with wheat straw incorporation |
| topic | direct sowing dry seeding irrigation methane emission raised beds straw water management water productivity wheat |
| url | https://hdl.handle.net/10568/164792 |
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