Expansion of Field Margin Size Mitigate the Hazard of Rotary Tillage to Earthworm in Rice-Rape Rotation System
Field margin (FM) provides refuges for earthworm survival in rape-rice system after flooding, while the effects of FM with different size on earthworm in arable field (AF) is unclear. In this study, we investigated the effects of different FM sizes, a conventional size (FM I) and three expanding siz...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/9/2209 |
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| author | Chao Li Yang Zhao Kaikai Cheng Junyu Zhou Xiaoping Xiao Anas Iqbal Haiming Tang Min Huang |
| author_facet | Chao Li Yang Zhao Kaikai Cheng Junyu Zhou Xiaoping Xiao Anas Iqbal Haiming Tang Min Huang |
| author_sort | Chao Li |
| collection | DOAJ |
| description | Field margin (FM) provides refuges for earthworm survival in rape-rice system after flooding, while the effects of FM with different size on earthworm in arable field (AF) is unclear. In this study, we investigated the effects of different FM sizes, a conventional size (FM I) and three expanding sizes (FM II, FM III, FM IV), on earthworm population characteristics in FM and AF. The results showed that the mean abundance of earthworm under the expanding sizes at 1 day and 60 day of flooding after rape harvest was 16.5 and 20.2 times higher than that of FM I, respectively. After stopping flooding, juveniles first migrated from FM to AF, whereas more than half of them were killed by subsequent rotary tillage, and the mortality decreased with expanding FM size. Subsequently, expanding FM sizes promoted earthworm to distribute evenly through the AF at faster speeds. At rape maturity, the mean abundance and total biomass of earthworm of AF under expanding FM sizes were significantly greater than that of FM I, and this positive effect increased with expanding FM size. The results indicated that expanding FM size can mitigate the hazard of rotary tillage to earthworm and promote rapid recovery of earthworm population in AF. |
| first_indexed | 2024-03-10T00:58:45Z |
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| id | doaj.art-7aadaab124dd4664806132535cb8c242 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T00:58:45Z |
| publishDate | 2022-09-01 |
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| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-7aadaab124dd4664806132535cb8c2422023-11-23T14:39:10ZengMDPI AGAgronomy2073-43952022-09-01129220910.3390/agronomy12092209Expansion of Field Margin Size Mitigate the Hazard of Rotary Tillage to Earthworm in Rice-Rape Rotation SystemChao Li0Yang Zhao1Kaikai Cheng2Junyu Zhou3Xiaoping Xiao4Anas Iqbal5Haiming Tang6Min Huang7Rice and Product Ecophysiology, Key Laboratory of Ministry of Eduction for Crop Physiology and Molecular Biology, Hunan Agricultural University, Changsha 410128, ChinaRice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, ChinaSoil and Fertilizer Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, ChinaSoil and Fertilizer Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, ChinaSoil and Fertilizer Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, ChinaState Key Laboratory for Conservation and Utilization of Agro-Bioresoueces, College of Agriculture, South China Agriculture University, Guangzhou 510642, ChinaSoil and Fertilizer Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, ChinaRice and Product Ecophysiology, Key Laboratory of Ministry of Eduction for Crop Physiology and Molecular Biology, Hunan Agricultural University, Changsha 410128, ChinaField margin (FM) provides refuges for earthworm survival in rape-rice system after flooding, while the effects of FM with different size on earthworm in arable field (AF) is unclear. In this study, we investigated the effects of different FM sizes, a conventional size (FM I) and three expanding sizes (FM II, FM III, FM IV), on earthworm population characteristics in FM and AF. The results showed that the mean abundance of earthworm under the expanding sizes at 1 day and 60 day of flooding after rape harvest was 16.5 and 20.2 times higher than that of FM I, respectively. After stopping flooding, juveniles first migrated from FM to AF, whereas more than half of them were killed by subsequent rotary tillage, and the mortality decreased with expanding FM size. Subsequently, expanding FM sizes promoted earthworm to distribute evenly through the AF at faster speeds. At rape maturity, the mean abundance and total biomass of earthworm of AF under expanding FM sizes were significantly greater than that of FM I, and this positive effect increased with expanding FM size. The results indicated that expanding FM size can mitigate the hazard of rotary tillage to earthworm and promote rapid recovery of earthworm population in AF.https://www.mdpi.com/2073-4395/12/9/2209rape-ricefloodingearthwormfield margin sizerotary tillage |
| spellingShingle | Chao Li Yang Zhao Kaikai Cheng Junyu Zhou Xiaoping Xiao Anas Iqbal Haiming Tang Min Huang Expansion of Field Margin Size Mitigate the Hazard of Rotary Tillage to Earthworm in Rice-Rape Rotation System Agronomy rape-rice flooding earthworm field margin size rotary tillage |
| title | Expansion of Field Margin Size Mitigate the Hazard of Rotary Tillage to Earthworm in Rice-Rape Rotation System |
| title_full | Expansion of Field Margin Size Mitigate the Hazard of Rotary Tillage to Earthworm in Rice-Rape Rotation System |
| title_fullStr | Expansion of Field Margin Size Mitigate the Hazard of Rotary Tillage to Earthworm in Rice-Rape Rotation System |
| title_full_unstemmed | Expansion of Field Margin Size Mitigate the Hazard of Rotary Tillage to Earthworm in Rice-Rape Rotation System |
| title_short | Expansion of Field Margin Size Mitigate the Hazard of Rotary Tillage to Earthworm in Rice-Rape Rotation System |
| title_sort | expansion of field margin size mitigate the hazard of rotary tillage to earthworm in rice rape rotation system |
| topic | rape-rice flooding earthworm field margin size rotary tillage |
| url | https://www.mdpi.com/2073-4395/12/9/2209 |
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