Maize crop nutrient input requirements for food security in sub-Saharan Africa
Nutrient limitation is a major constraint in crop production in sub-Saharan Africa (SSA). Here, we propose a generic and simple equilibrium model to estimate minimum input requirements of nitrogen, phosphorus and potassium for target yields in cereal crops under highly efficient management. The mode...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Elsevier
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/100664 |
| _version_ | 1855533071436087296 |
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| author | Berge, Hein F.M. ten Hijbeek, Renske Loon, Marloes P. van Rurinda, Jairos Tesfaye, Kinde Zingore, Shamie Craufurd, Peter Q. Heerwaarden, Joost van Brentrup, Frank Schröder, Jaap J. Boogaard, Hendrik L. Groot, Hugo L.E. de Ittersum, Martin K. van |
| author_browse | Berge, Hein F.M. ten Boogaard, Hendrik L. Brentrup, Frank Craufurd, Peter Q. Groot, Hugo L.E. de Heerwaarden, Joost van Hijbeek, Renske Ittersum, Martin K. van Loon, Marloes P. van Rurinda, Jairos Schröder, Jaap J. Tesfaye, Kinde Zingore, Shamie |
| author_facet | Berge, Hein F.M. ten Hijbeek, Renske Loon, Marloes P. van Rurinda, Jairos Tesfaye, Kinde Zingore, Shamie Craufurd, Peter Q. Heerwaarden, Joost van Brentrup, Frank Schröder, Jaap J. Boogaard, Hendrik L. Groot, Hugo L.E. de Ittersum, Martin K. van |
| author_sort | Berge, Hein F.M. ten |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Nutrient limitation is a major constraint in crop production in sub-Saharan Africa (SSA). Here, we propose a generic and simple equilibrium model to estimate minimum input requirements of nitrogen, phosphorus and potassium for target yields in cereal crops under highly efficient management. The model was combined with Global Yield Gap Atlas data to explore minimum input requirements for self-sufficiency in 2050 for maize in nine countries in SSA. We estimate that yields have to increase from the current ca. 20% of water-limited yield potential to approximately 50–75% of the potential depending on the scenario investigated. Minimum nutrient input requirements must rise disproportionately more, with N input increasing 9-fold or 15-fold, because current production largely relies on soil nutrient mining, which cannot be sustained into the future. |
| format | Journal Article |
| id | CGSpace100664 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1006642025-12-08T09:54:28Z Maize crop nutrient input requirements for food security in sub-Saharan Africa Berge, Hein F.M. ten Hijbeek, Renske Loon, Marloes P. van Rurinda, Jairos Tesfaye, Kinde Zingore, Shamie Craufurd, Peter Q. Heerwaarden, Joost van Brentrup, Frank Schröder, Jaap J. Boogaard, Hendrik L. Groot, Hugo L.E. de Ittersum, Martin K. van climate change agriculture food security intensification maize yield gap soil fertility Nutrient limitation is a major constraint in crop production in sub-Saharan Africa (SSA). Here, we propose a generic and simple equilibrium model to estimate minimum input requirements of nitrogen, phosphorus and potassium for target yields in cereal crops under highly efficient management. The model was combined with Global Yield Gap Atlas data to explore minimum input requirements for self-sufficiency in 2050 for maize in nine countries in SSA. We estimate that yields have to increase from the current ca. 20% of water-limited yield potential to approximately 50–75% of the potential depending on the scenario investigated. Minimum nutrient input requirements must rise disproportionately more, with N input increasing 9-fold or 15-fold, because current production largely relies on soil nutrient mining, which cannot be sustained into the future. 2019-12 2019-04-01T12:59:38Z 2019-04-01T12:59:38Z Journal Article https://hdl.handle.net/10568/100664 en Open Access Elsevier Ten Berge HFM, Hijbeek R, van Loon MP, Rurinda J, Tesfaye K, Zingore S, Craufurd PQ, van Heerwaarden J, Brentrup F, Schröder JJ, Boogaard HL, de Groot HLE, van Ittersum MK. 2019. Maize crop nutrient input requirements for food security in sub-Saharan Africa. Global Food Security, 23:9-21. |
| spellingShingle | climate change agriculture food security intensification maize yield gap soil fertility Berge, Hein F.M. ten Hijbeek, Renske Loon, Marloes P. van Rurinda, Jairos Tesfaye, Kinde Zingore, Shamie Craufurd, Peter Q. Heerwaarden, Joost van Brentrup, Frank Schröder, Jaap J. Boogaard, Hendrik L. Groot, Hugo L.E. de Ittersum, Martin K. van Maize crop nutrient input requirements for food security in sub-Saharan Africa |
| title | Maize crop nutrient input requirements for food security in sub-Saharan Africa |
| title_full | Maize crop nutrient input requirements for food security in sub-Saharan Africa |
| title_fullStr | Maize crop nutrient input requirements for food security in sub-Saharan Africa |
| title_full_unstemmed | Maize crop nutrient input requirements for food security in sub-Saharan Africa |
| title_short | Maize crop nutrient input requirements for food security in sub-Saharan Africa |
| title_sort | maize crop nutrient input requirements for food security in sub saharan africa |
| topic | climate change agriculture food security intensification maize yield gap soil fertility |
| url | https://hdl.handle.net/10568/100664 |
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