Yield gap decomposition: quantifying factors limiting soybean yield in Southern Africa
Soybean production in Sub-Saharan Africa (SSA) is increasing as its demand for food, feed, cash, and soil fertility improvement soars. Yet, the difference between the smallholder farmers’ yield and either the attainable or the potential is large. Here, we assessed the contribution of various crop ma...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/176333 |
| _version_ | 1855533119783829504 |
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| author | Omondi, J.O. Chiduwa, M.S. Kyei-Boahen, S. Masikati, P. Nyagumbo, I. |
| author_browse | Chiduwa, M.S. Kyei-Boahen, S. Masikati, P. Nyagumbo, I. Omondi, J.O. |
| author_facet | Omondi, J.O. Chiduwa, M.S. Kyei-Boahen, S. Masikati, P. Nyagumbo, I. |
| author_sort | Omondi, J.O. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Soybean production in Sub-Saharan Africa (SSA) is increasing as its demand for food, feed, cash, and soil fertility improvement soars. Yet, the difference between the smallholder farmers’ yield and either the attainable or the potential is large. Here, we assessed the contribution of various crop management practices to yield gap, and the major factors limiting soybean yield increase per unit area. This study showed that besides soil nutrients and plant nutrition, soybean variety is the most limiting factor in Malawi and Zambia, whereas, in Mozambique, seed rate is significant. Overall, in the Southern Africa region (Malawi, Zambia, and Mozambique) the major soybean yield gap contributors are: variety (63.9%), seed rate (49.7%), and disease damage (36.3%), especially soybean rust. An indication that through yield gap decomposition, interventions could be prioritized to target the most yield-limiting factors with the minimum resources available to smallholder farmers and immensely narrow the yield gap. |
| format | Journal Article |
| id | CGSpace176333 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| record_format | dspace |
| spelling | CGSpace1763332025-11-11T10:38:49Z Yield gap decomposition: quantifying factors limiting soybean yield in Southern Africa Omondi, J.O. Chiduwa, M.S. Kyei-Boahen, S. Masikati, P. Nyagumbo, I. soybeans glycine max yields soil fertility degradation southern africa Soybean production in Sub-Saharan Africa (SSA) is increasing as its demand for food, feed, cash, and soil fertility improvement soars. Yet, the difference between the smallholder farmers’ yield and either the attainable or the potential is large. Here, we assessed the contribution of various crop management practices to yield gap, and the major factors limiting soybean yield increase per unit area. This study showed that besides soil nutrients and plant nutrition, soybean variety is the most limiting factor in Malawi and Zambia, whereas, in Mozambique, seed rate is significant. Overall, in the Southern Africa region (Malawi, Zambia, and Mozambique) the major soybean yield gap contributors are: variety (63.9%), seed rate (49.7%), and disease damage (36.3%), especially soybean rust. An indication that through yield gap decomposition, interventions could be prioritized to target the most yield-limiting factors with the minimum resources available to smallholder farmers and immensely narrow the yield gap. 2024 2025-09-04T15:15:58Z 2025-09-04T15:15:58Z Journal Article https://hdl.handle.net/10568/176333 en Open Access application/pdf Omondi, J.O., Chiduwa, M.S., Kyei-Boahen, S., Masikati, P. & Nyagumbo, I. (2024). Yield gap decomposition: quantifying factors limiting soybean yield in Southern Africa. npj Sustainable Agriculture, 2(1): 32, 1-11. |
| spellingShingle | soybeans glycine max yields soil fertility degradation southern africa Omondi, J.O. Chiduwa, M.S. Kyei-Boahen, S. Masikati, P. Nyagumbo, I. Yield gap decomposition: quantifying factors limiting soybean yield in Southern Africa |
| title | Yield gap decomposition: quantifying factors limiting soybean yield in Southern Africa |
| title_full | Yield gap decomposition: quantifying factors limiting soybean yield in Southern Africa |
| title_fullStr | Yield gap decomposition: quantifying factors limiting soybean yield in Southern Africa |
| title_full_unstemmed | Yield gap decomposition: quantifying factors limiting soybean yield in Southern Africa |
| title_short | Yield gap decomposition: quantifying factors limiting soybean yield in Southern Africa |
| title_sort | yield gap decomposition quantifying factors limiting soybean yield in southern africa |
| topic | soybeans glycine max yields soil fertility degradation southern africa |
| url | https://hdl.handle.net/10568/176333 |
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