Prospect for increasing grain legume crop production in East Africa
Agricultural production in East Africa (E-Afr) has to increase drastically to meet future food demand. Yield gap assessment provides important information on the degree to which production can be increased on existing cropland. Most research on yield gap analysis has focussed on cereal crops, while...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Elsevier
2018
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/98584 |
| _version_ | 1855532838674235392 |
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| author | Loon, Marloes P. van Deng, N. Grassini, P. Edreira, J.I.R. Woldemeskel, Endalkachew Baijukya, Frederick P. Marrou, H. Ittersum, Martin K. van |
| author_browse | Baijukya, Frederick P. Deng, N. Edreira, J.I.R. Grassini, P. Ittersum, Martin K. van Loon, Marloes P. van Marrou, H. Woldemeskel, Endalkachew |
| author_facet | Loon, Marloes P. van Deng, N. Grassini, P. Edreira, J.I.R. Woldemeskel, Endalkachew Baijukya, Frederick P. Marrou, H. Ittersum, Martin K. van |
| author_sort | Loon, Marloes P. van |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Agricultural production in East Africa (E-Afr) has to increase drastically to meet future food demand. Yield gap assessment provides important information on the degree to which production can be increased on existing cropland. Most research on yield gap analysis has focussed on cereal crops, while legumes have received less attention despite of their relatively large area, and their importance as source of protein in smallholder farming systems in E-Afr. The objectives of this study were to (i) estimate water-limited yield potential (Yw) and yield gaps (Yg) for major grain legume crops in E-Afr, and (ii) estimate how narrowing the current legume Yg can contribute to food self-sufficiency by the year 2050. We focussed on Ethiopia, Kenya, and Tanzania, and five legumes crops including chickpea, common bean, cowpea, groundnut, and pigeonpea. A bottom-up approach which entails that local weather, soil and agronomic data was used as input for crop modelling (SSM-legumes) in a spatial framework, to estimate Yw, actual on-farm yield (Ya), and Yg from local to regional scale. Future legume self-sufficiency was assessed for 2050 demand assuming different Yg closure scenarios. On average, Ya was 25% of Yw across all legume-county combinations, being 15% for Kenya, 23% for Tanzania and 41% for Ethiopia. On average, common bean had the largest Yg of 2.6 Mg ha−1and chickpea the smallest (1.4 Mg ha−1). Closure of the exploitable Yg (i.e., 80% of Yw) can help to meet future legume demand in both Kenya and Tanzania, while it seems not to be sufficient in Ethiopia. |
| format | Journal Article |
| id | CGSpace98584 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace985842024-08-30T19:36:47Z Prospect for increasing grain legume crop production in East Africa Loon, Marloes P. van Deng, N. Grassini, P. Edreira, J.I.R. Woldemeskel, Endalkachew Baijukya, Frederick P. Marrou, H. Ittersum, Martin K. van legumes crops grain crop production research cowpeas chickpeas climate change food security agriculture Agricultural production in East Africa (E-Afr) has to increase drastically to meet future food demand. Yield gap assessment provides important information on the degree to which production can be increased on existing cropland. Most research on yield gap analysis has focussed on cereal crops, while legumes have received less attention despite of their relatively large area, and their importance as source of protein in smallholder farming systems in E-Afr. The objectives of this study were to (i) estimate water-limited yield potential (Yw) and yield gaps (Yg) for major grain legume crops in E-Afr, and (ii) estimate how narrowing the current legume Yg can contribute to food self-sufficiency by the year 2050. We focussed on Ethiopia, Kenya, and Tanzania, and five legumes crops including chickpea, common bean, cowpea, groundnut, and pigeonpea. A bottom-up approach which entails that local weather, soil and agronomic data was used as input for crop modelling (SSM-legumes) in a spatial framework, to estimate Yw, actual on-farm yield (Ya), and Yg from local to regional scale. Future legume self-sufficiency was assessed for 2050 demand assuming different Yg closure scenarios. On average, Ya was 25% of Yw across all legume-county combinations, being 15% for Kenya, 23% for Tanzania and 41% for Ethiopia. On average, common bean had the largest Yg of 2.6 Mg ha−1and chickpea the smallest (1.4 Mg ha−1). Closure of the exploitable Yg (i.e., 80% of Yw) can help to meet future legume demand in both Kenya and Tanzania, while it seems not to be sufficient in Ethiopia. 2018-11 2018-12-14T15:08:53Z 2018-12-14T15:08:53Z Journal Article https://hdl.handle.net/10568/98584 en Open Access Elsevier Loon, M.P. van, Deng, N., Grassini, P., Edreira, J.I.R., Wolde-meskel, E., Baijukya, F., Marrou, H. and Ittersum, M.K. van. 2018. Prospect for increasing grain legume crop production in East Africa. European Journal of Agronomy 101: 140-148 |
| spellingShingle | legumes crops grain crop production research cowpeas chickpeas climate change food security agriculture Loon, Marloes P. van Deng, N. Grassini, P. Edreira, J.I.R. Woldemeskel, Endalkachew Baijukya, Frederick P. Marrou, H. Ittersum, Martin K. van Prospect for increasing grain legume crop production in East Africa |
| title | Prospect for increasing grain legume crop production in East Africa |
| title_full | Prospect for increasing grain legume crop production in East Africa |
| title_fullStr | Prospect for increasing grain legume crop production in East Africa |
| title_full_unstemmed | Prospect for increasing grain legume crop production in East Africa |
| title_short | Prospect for increasing grain legume crop production in East Africa |
| title_sort | prospect for increasing grain legume crop production in east africa |
| topic | legumes crops grain crop production research cowpeas chickpeas climate change food security agriculture |
| url | https://hdl.handle.net/10568/98584 |
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