Influence of organic rice production mode on weed composition in the soil seed bank of paddy fields
IntroductionIt is of great significance to determine the composition of the soil weed seed bank under different organic rice production modes to provide decision making support for rational integrated weed management in organic rice production.MethodsThe soil weed seed bank of the four dominant orga...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-11-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2022.1056975/full |
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| author | Pinglei Gao Pinglei Gao Haoyu Wang Haoyu Wang Shiwen Deng Shiwen Deng Erjia Dong Qigen Dai Qigen Dai |
| author_facet | Pinglei Gao Pinglei Gao Haoyu Wang Haoyu Wang Shiwen Deng Shiwen Deng Erjia Dong Qigen Dai Qigen Dai |
| author_sort | Pinglei Gao |
| collection | DOAJ |
| description | IntroductionIt is of great significance to determine the composition of the soil weed seed bank under different organic rice production modes to provide decision making support for rational integrated weed management in organic rice production.MethodsThe soil weed seed bank of the four dominant organic production modes, namely, rice-green manure rotation (RG), rice monoculture (RM), rice-crayfish coculture (RC) and rice-duck coculture (RD), with different numbers of consecutive planting years (3 to 10 years) in different sites in Jiangsu Province were investigated to determine the influence of organic rice production mode on weed composition.Results and DiscussionThere were significant differences in the weed composition in the soil seed bank among the four organic rice production modes. The most dominant weed group was broadleaf weeds in the soil seed bank under the RG and RM modes; however, under the RM mode, the most dominant weed species were sedge and grass weeds. Sedge and grass weeds dominated the soil seed bank of the RC and RD modes, respectively. Therefore, specific weed management strategies could be formulated based on the differences in weed composition under different organic rice production modes. The application of organic fertilizer and irrigation were identified as primary factors associated with the differences in weed composition in the soil seed banks, which had higher effects on the weed composition than hand weeding. Consequently, fertilization and irrigation strategies that alter weed composition could be used as improved weed management program components in organic rice production systems. Long-term organic rice planting is beneficial for increasing weed diversity in paddy fields. Our results indicated that weed species diversity increased and weed community evenness and dominance decreased with the increase in the number of consecutive planting years under all four organic rice production modes. |
| first_indexed | 2024-04-11T14:33:29Z |
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| id | doaj.art-c6e84b2932e24a0c9c3bcf04d0f4fd14 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-11T14:33:29Z |
| publishDate | 2022-11-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Plant Science |
| spelling | doaj.art-c6e84b2932e24a0c9c3bcf04d0f4fd142022-12-22T04:18:26ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2022-11-011310.3389/fpls.2022.10569751056975Influence of organic rice production mode on weed composition in the soil seed bank of paddy fieldsPinglei Gao0Pinglei Gao1Haoyu Wang2Haoyu Wang3Shiwen Deng4Shiwen Deng5Erjia Dong6Qigen Dai7Qigen Dai8Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou, ChinaAnhui Pujiwei Modern Agriculture Group Co., Ltd., Tongling, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Cultivation and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain, Research Institute of Rice Industrial Engineering Technology, Yangzhou University, Yangzhou, ChinaIntroductionIt is of great significance to determine the composition of the soil weed seed bank under different organic rice production modes to provide decision making support for rational integrated weed management in organic rice production.MethodsThe soil weed seed bank of the four dominant organic production modes, namely, rice-green manure rotation (RG), rice monoculture (RM), rice-crayfish coculture (RC) and rice-duck coculture (RD), with different numbers of consecutive planting years (3 to 10 years) in different sites in Jiangsu Province were investigated to determine the influence of organic rice production mode on weed composition.Results and DiscussionThere were significant differences in the weed composition in the soil seed bank among the four organic rice production modes. The most dominant weed group was broadleaf weeds in the soil seed bank under the RG and RM modes; however, under the RM mode, the most dominant weed species were sedge and grass weeds. Sedge and grass weeds dominated the soil seed bank of the RC and RD modes, respectively. Therefore, specific weed management strategies could be formulated based on the differences in weed composition under different organic rice production modes. The application of organic fertilizer and irrigation were identified as primary factors associated with the differences in weed composition in the soil seed banks, which had higher effects on the weed composition than hand weeding. Consequently, fertilization and irrigation strategies that alter weed composition could be used as improved weed management program components in organic rice production systems. Long-term organic rice planting is beneficial for increasing weed diversity in paddy fields. Our results indicated that weed species diversity increased and weed community evenness and dominance decreased with the increase in the number of consecutive planting years under all four organic rice production modes.https://www.frontiersin.org/articles/10.3389/fpls.2022.1056975/fullorganic agriculturerice-green manure rotationrice integrated planting–breedingweed compositionweed biodiversity |
| spellingShingle | Pinglei Gao Pinglei Gao Haoyu Wang Haoyu Wang Shiwen Deng Shiwen Deng Erjia Dong Qigen Dai Qigen Dai Influence of organic rice production mode on weed composition in the soil seed bank of paddy fields Frontiers in Plant Science organic agriculture rice-green manure rotation rice integrated planting–breeding weed composition weed biodiversity |
| title | Influence of organic rice production mode on weed composition in the soil seed bank of paddy fields |
| title_full | Influence of organic rice production mode on weed composition in the soil seed bank of paddy fields |
| title_fullStr | Influence of organic rice production mode on weed composition in the soil seed bank of paddy fields |
| title_full_unstemmed | Influence of organic rice production mode on weed composition in the soil seed bank of paddy fields |
| title_short | Influence of organic rice production mode on weed composition in the soil seed bank of paddy fields |
| title_sort | influence of organic rice production mode on weed composition in the soil seed bank of paddy fields |
| topic | organic agriculture rice-green manure rotation rice integrated planting–breeding weed composition weed biodiversity |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2022.1056975/full |
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