Development and Experimentation of Intra-Row Weeding Device for Organic Rice
Weeds in paddy fields can seriously reduce rice yield. An intra-row weeding device with double-layer elastic rods was designed, considering the differences in mechanical properties between rice and weeds, which can press weeds into the soil and avoid damaging rice. The elastic force of the elastic r...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/14/1/146 |
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| author | Jinkang Jiao Lian Hu Gaolong Chen Chaowen Chen Ying Zang |
| author_facet | Jinkang Jiao Lian Hu Gaolong Chen Chaowen Chen Ying Zang |
| author_sort | Jinkang Jiao |
| collection | DOAJ |
| description | Weeds in paddy fields can seriously reduce rice yield. An intra-row weeding device with double-layer elastic rods was designed, considering the differences in mechanical properties between rice and weeds, which can press weeds into the soil and avoid damaging rice. The elastic force of the elastic rods can be adjusted by changing the position of the regulating mechanism to adapt to different weeding conditions. A measurement experiment was conducted to determine the variation rule of elastic force. The quadratic orthogonal rotation combination discrete element simulation experiment, which used weeding depth and weeding speed as experimental factors, and the amount of soil disturbance and the force of the inner and outer elastic rod in the horizontal and vertical directions as experimental indicators, was conducted to study the interaction between the weeding device and the soil. The optimal weeding parameters were obtained: the weeding depth was 15 mm, the weeding speed was 0.9 m/s. The field experiment, which used the various parameters of the weeding device as experimental factors and the weeding rate and damaging seedling rate as experimental indicators, was conducted to determine the weeding effect. The experimental results showed that the optimal position of the regulating mechanism was 270 mm, with a weeding rate of 80.65% and a damaging seedling rate of 3.36%. The weeding rate can be increased by at least 11.18% by adjusting the regulating mechanism to a suitable position under the same weeding conditions. This study can provide a reference for research on weeding machinery for organic rice. |
| first_indexed | 2024-03-08T09:59:49Z |
| format | Article |
| id | doaj.art-673fb401b4784d339f7da86ee1117c75 |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-08T09:59:49Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-673fb401b4784d339f7da86ee1117c752024-01-29T13:40:48ZengMDPI AGAgriculture2077-04722024-01-0114114610.3390/agriculture14010146Development and Experimentation of Intra-Row Weeding Device for Organic RiceJinkang Jiao0Lian Hu1Gaolong Chen2Chaowen Chen3Ying Zang4College of Engineering, South China Agricultural University, Guangzhou 510642, ChinaCollege of Engineering, South China Agricultural University, Guangzhou 510642, ChinaCollege of Engineering, South China Agricultural University, Guangzhou 510642, ChinaCollege of Engineering, South China Agricultural University, Guangzhou 510642, ChinaCollege of Engineering, South China Agricultural University, Guangzhou 510642, ChinaWeeds in paddy fields can seriously reduce rice yield. An intra-row weeding device with double-layer elastic rods was designed, considering the differences in mechanical properties between rice and weeds, which can press weeds into the soil and avoid damaging rice. The elastic force of the elastic rods can be adjusted by changing the position of the regulating mechanism to adapt to different weeding conditions. A measurement experiment was conducted to determine the variation rule of elastic force. The quadratic orthogonal rotation combination discrete element simulation experiment, which used weeding depth and weeding speed as experimental factors, and the amount of soil disturbance and the force of the inner and outer elastic rod in the horizontal and vertical directions as experimental indicators, was conducted to study the interaction between the weeding device and the soil. The optimal weeding parameters were obtained: the weeding depth was 15 mm, the weeding speed was 0.9 m/s. The field experiment, which used the various parameters of the weeding device as experimental factors and the weeding rate and damaging seedling rate as experimental indicators, was conducted to determine the weeding effect. The experimental results showed that the optimal position of the regulating mechanism was 270 mm, with a weeding rate of 80.65% and a damaging seedling rate of 3.36%. The weeding rate can be increased by at least 11.18% by adjusting the regulating mechanism to a suitable position under the same weeding conditions. This study can provide a reference for research on weeding machinery for organic rice.https://www.mdpi.com/2077-0472/14/1/146agricultural machineryintra-row weedingorganic riceweeding ratedamaging seedling rate |
| spellingShingle | Jinkang Jiao Lian Hu Gaolong Chen Chaowen Chen Ying Zang Development and Experimentation of Intra-Row Weeding Device for Organic Rice Agriculture agricultural machinery intra-row weeding organic rice weeding rate damaging seedling rate |
| title | Development and Experimentation of Intra-Row Weeding Device for Organic Rice |
| title_full | Development and Experimentation of Intra-Row Weeding Device for Organic Rice |
| title_fullStr | Development and Experimentation of Intra-Row Weeding Device for Organic Rice |
| title_full_unstemmed | Development and Experimentation of Intra-Row Weeding Device for Organic Rice |
| title_short | Development and Experimentation of Intra-Row Weeding Device for Organic Rice |
| title_sort | development and experimentation of intra row weeding device for organic rice |
| topic | agricultural machinery intra-row weeding organic rice weeding rate damaging seedling rate |
| url | https://www.mdpi.com/2077-0472/14/1/146 |
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