Understanding factors influencing wheat productivity in Ethiopian highlands
Increasing yields in farmer fields is a priority to address increasing food demands. The study was conducted within four wheat-growing areas in Ethiopia: Debre Birhan, Hosaina, Sinana and Maychew. The objectives were to identify (1) best-bet soil fertility management options based on agronomic perfo...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Cambridge University Press
2022
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| Acceso en línea: | https://hdl.handle.net/10568/118130 |
| _version_ | 1855529310790615040 |
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| author | Kihara, Job Maguta Gurmessa, Biyensa Dubiwak Tamene, Lulseged D. Amede, Tilahun Sommer, Rolf |
| author_browse | Amede, Tilahun Gurmessa, Biyensa Dubiwak Kihara, Job Maguta Sommer, Rolf Tamene, Lulseged D. |
| author_facet | Kihara, Job Maguta Gurmessa, Biyensa Dubiwak Tamene, Lulseged D. Amede, Tilahun Sommer, Rolf |
| author_sort | Kihara, Job Maguta |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Increasing yields in farmer fields is a priority to address increasing food demands. The study was conducted within four wheat-growing areas in Ethiopia: Debre Birhan, Hosaina, Sinana and Maychew. The objectives were to identify (1) best-bet soil fertility management options based on agronomic performance and economic evaluation and (2) key yield-reducing factors in farmer fields based on an agronomic survey among 55 participating farmers. Two types of on-farm experiments were conducted: researcher-managed trials that tested combinations of nutrients, including micronutrients, organic resources or both over two cropping seasons and farmer-managed trials comparing ‘improved practice’ against ‘farmer’s practice’. Fertilizer treatment affected wheat productivity in Debre Birhan (p < 0.01), a site limited in sulphur. Here, full NPK increased yields over the control (p < 0.05), whereas a combination of NPK and manure was better than the application of manure as the only source of added nutrients (p < 0.05). Applying half the recommended NPK with micronutrients and manure achieved similar yields as the full fertilizer treatment. In Hosaina, treatment had no significant effect on wheat productivity, although a combination of NPK and zinc resulted in an additional 26–57% yield relative to the other treatments. In Maychew, a significant treatment effect (p < 0.05) was observed. Here, the treatment with lower rates of nitrogen and phosphorous had lower yields than the full NPK treatment. A significant effect of plant densities on on-farm productivity was also observed. We conclude that although nutrient management including use of micronutrients is important in specific cases, investments to optimize plant densities have a huge potential to increase food productivity. |
| format | Journal Article |
| id | CGSpace118130 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace1181302025-11-11T18:53:11Z Understanding factors influencing wheat productivity in Ethiopian highlands Kihara, Job Maguta Gurmessa, Biyensa Dubiwak Tamene, Lulseged D. Amede, Tilahun Sommer, Rolf crop production soil management soil fertility yield factors producción vegetal manejo del suelo fertilidad del suelo Increasing yields in farmer fields is a priority to address increasing food demands. The study was conducted within four wheat-growing areas in Ethiopia: Debre Birhan, Hosaina, Sinana and Maychew. The objectives were to identify (1) best-bet soil fertility management options based on agronomic performance and economic evaluation and (2) key yield-reducing factors in farmer fields based on an agronomic survey among 55 participating farmers. Two types of on-farm experiments were conducted: researcher-managed trials that tested combinations of nutrients, including micronutrients, organic resources or both over two cropping seasons and farmer-managed trials comparing ‘improved practice’ against ‘farmer’s practice’. Fertilizer treatment affected wheat productivity in Debre Birhan (p < 0.01), a site limited in sulphur. Here, full NPK increased yields over the control (p < 0.05), whereas a combination of NPK and manure was better than the application of manure as the only source of added nutrients (p < 0.05). Applying half the recommended NPK with micronutrients and manure achieved similar yields as the full fertilizer treatment. In Hosaina, treatment had no significant effect on wheat productivity, although a combination of NPK and zinc resulted in an additional 26–57% yield relative to the other treatments. In Maychew, a significant treatment effect (p < 0.05) was observed. Here, the treatment with lower rates of nitrogen and phosphorous had lower yields than the full NPK treatment. A significant effect of plant densities on on-farm productivity was also observed. We conclude that although nutrient management including use of micronutrients is important in specific cases, investments to optimize plant densities have a huge potential to increase food productivity. 2022 2022-02-15T09:25:46Z 2022-02-15T09:25:46Z Journal Article https://hdl.handle.net/10568/118130 en Open Access application/pdf Cambridge University Press Kihara, J.; Gurmessa, B.; Tamene, Lulseged D.; Amede, T.; Sommer, R. (2022) Understanding factors influencing wheat productivity in Ethiopian highlands. Experimental Agriculture, Online first paper (07 February 2022) 18 p. ISSN: 0014-4797 |
| spellingShingle | crop production soil management soil fertility yield factors producción vegetal manejo del suelo fertilidad del suelo Kihara, Job Maguta Gurmessa, Biyensa Dubiwak Tamene, Lulseged D. Amede, Tilahun Sommer, Rolf Understanding factors influencing wheat productivity in Ethiopian highlands |
| title | Understanding factors influencing wheat productivity in Ethiopian highlands |
| title_full | Understanding factors influencing wheat productivity in Ethiopian highlands |
| title_fullStr | Understanding factors influencing wheat productivity in Ethiopian highlands |
| title_full_unstemmed | Understanding factors influencing wheat productivity in Ethiopian highlands |
| title_short | Understanding factors influencing wheat productivity in Ethiopian highlands |
| title_sort | understanding factors influencing wheat productivity in ethiopian highlands |
| topic | crop production soil management soil fertility yield factors producción vegetal manejo del suelo fertilidad del suelo |
| url | https://hdl.handle.net/10568/118130 |
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