Optimizing agronomic practices for closing rapeseed yield gaps under intensive cropping systems in China
A yield gap analysis for rapeseed (Brassica napus L.) is critical to meeting the oil demand by identifying yield potential and yield constraints. In this study, potential yield (Yp), attainable yield (Yatt), and actual yield (Yact) for winter rapeseed were determined in five different zones of China...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-05-01
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| Series: | Journal of Integrative Agriculture |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311919627486 |
| _version_ | 1818835552235945984 |
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| author | Zhi ZHANG Ri-huan CONG Tao REN Hui LI Yun ZHU Jian-wei LU |
| author_facet | Zhi ZHANG Ri-huan CONG Tao REN Hui LI Yun ZHU Jian-wei LU |
| author_sort | Zhi ZHANG |
| collection | DOAJ |
| description | A yield gap analysis for rapeseed (Brassica napus L.) is critical to meeting the oil demand by identifying yield potential and yield constraints. In this study, potential yield (Yp), attainable yield (Yatt), and actual yield (Yact) for winter rapeseed were determined in five different zones of China. A boundary line approach was adopted to calculate Yp, based on a large-scale field experimental database. A meta-analysis was conducted on the data obtained from 118 published studies to evaluate the effects of agronomic factors on rapeseed yield. The main results indicated that farmers only achieved 37–56% of the yield potential across the zones. The low altitude areas (L-URY) and lower reaches (LRY) of the Yangtze River Basin (YRB), China had high yield levels. The total yield gap was 1893 kg ha–1, due to the agronomic management factors, environmental factors, and socioeconomic factors. The meta-analysis showed that weed control and drainage were the best management practices to improve yields (45.6 and 35.3%, respectively), and other practices improved yields by 17.1–21.6%. Consequently, to narrow the yield gap over the short term, the study could focus on techniques that are easily implemented to farmers. |
| first_indexed | 2024-12-19T02:52:31Z |
| format | Article |
| id | doaj.art-388dff6866f4443f9c8bfd7953aa7c8a |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-12-19T02:52:31Z |
| publishDate | 2020-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-388dff6866f4443f9c8bfd7953aa7c8a2022-12-21T20:38:33ZengElsevierJournal of Integrative Agriculture2095-31192020-05-0119512411249Optimizing agronomic practices for closing rapeseed yield gaps under intensive cropping systems in ChinaZhi ZHANG0Ri-huan CONG1Tao REN2Hui LI3Yun ZHU4Jian-wei LU5College of Resources and Environment, Huazhong Agricultural University/Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, Wuhan 430070, P.R.China; Key Laboratory of Fertilization from Agricultural Wastes, Ministry of Agriculture and Rural Affairs/Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences, Wuhan 430064, P.R.ChinaCollege of Resources and Environment, Huazhong Agricultural University/Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, Wuhan 430070, P.R.China; Correspondence CONG Ri-huan, Tel: +86-27-87288589College of Resources and Environment, Huazhong Agricultural University/Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, Wuhan 430070, P.R.ChinaCollege of Resources and Environment, Huazhong Agricultural University/Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, Wuhan 430070, P.R.ChinaCollege of Resources and Environment, Huazhong Agricultural University/Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, Wuhan 430070, P.R.ChinaCollege of Resources and Environment, Huazhong Agricultural University/Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, Wuhan 430070, P.R.ChinaA yield gap analysis for rapeseed (Brassica napus L.) is critical to meeting the oil demand by identifying yield potential and yield constraints. In this study, potential yield (Yp), attainable yield (Yatt), and actual yield (Yact) for winter rapeseed were determined in five different zones of China. A boundary line approach was adopted to calculate Yp, based on a large-scale field experimental database. A meta-analysis was conducted on the data obtained from 118 published studies to evaluate the effects of agronomic factors on rapeseed yield. The main results indicated that farmers only achieved 37–56% of the yield potential across the zones. The low altitude areas (L-URY) and lower reaches (LRY) of the Yangtze River Basin (YRB), China had high yield levels. The total yield gap was 1893 kg ha–1, due to the agronomic management factors, environmental factors, and socioeconomic factors. The meta-analysis showed that weed control and drainage were the best management practices to improve yields (45.6 and 35.3%, respectively), and other practices improved yields by 17.1–21.6%. Consequently, to narrow the yield gap over the short term, the study could focus on techniques that are easily implemented to farmers.http://www.sciencedirect.com/science/article/pii/S2095311919627486rapeseedyield gappotential yieldboundary linemeta-analysisYangtze River Basin |
| spellingShingle | Zhi ZHANG Ri-huan CONG Tao REN Hui LI Yun ZHU Jian-wei LU Optimizing agronomic practices for closing rapeseed yield gaps under intensive cropping systems in China Journal of Integrative Agriculture rapeseed yield gap potential yield boundary line meta-analysis Yangtze River Basin |
| title | Optimizing agronomic practices for closing rapeseed yield gaps under intensive cropping systems in China |
| title_full | Optimizing agronomic practices for closing rapeseed yield gaps under intensive cropping systems in China |
| title_fullStr | Optimizing agronomic practices for closing rapeseed yield gaps under intensive cropping systems in China |
| title_full_unstemmed | Optimizing agronomic practices for closing rapeseed yield gaps under intensive cropping systems in China |
| title_short | Optimizing agronomic practices for closing rapeseed yield gaps under intensive cropping systems in China |
| title_sort | optimizing agronomic practices for closing rapeseed yield gaps under intensive cropping systems in china |
| topic | rapeseed yield gap potential yield boundary line meta-analysis Yangtze River Basin |
| url | http://www.sciencedirect.com/science/article/pii/S2095311919627486 |
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