Enhancing Rice Productivity and Soil Nitrogen Using Dual-Purpose Cowpea-NERICA® Rice Sequence in Degraded Savanna
ISFM (integrated soil fertility management) involving annual sequencing of dual-purpose early-maturing first crop of cowpeas with biomass incorporation before seeding second crop of early-maturing NERICA® (New Rice for Africa) was evaluated to enhance rice productivity and soil-nitrogen. Five dual-p...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2012
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| Acceso en línea: | https://hdl.handle.net/10568/116555 |
| _version_ | 1855516721056579584 |
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| author | Oikeh, S. Niang, A. Abaidoo, Robert C. Houngnandan, P. Futakuchi, K. Koné, B. Touré, A. |
| author_browse | Abaidoo, Robert C. Futakuchi, K. Houngnandan, P. Koné, B. Niang, A. Oikeh, S. Touré, A. |
| author_facet | Oikeh, S. Niang, A. Abaidoo, Robert C. Houngnandan, P. Futakuchi, K. Koné, B. Touré, A. |
| author_sort | Oikeh, S. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | ISFM (integrated soil fertility management) involving annual sequencing of dual-purpose early-maturing first crop of cowpeas with biomass incorporation before seeding second crop of early-maturing NERICA® (New Rice for Africa) was evaluated to enhance rice productivity and soil-nitrogen. Five dual-purpose early-maturing cowpea cultivars and local cultivar (Katchè) were seeded early in the wet season in five farmers' fields at Ouake (9°46' N, 1°35' E, highly degraded-savanna), Benin. After pod harvest, cowpea residues were minimally worked into the soil using minimum tillage with hand-hoe and seeded with early-maturing, resilient NERICA8 rice that received either 20 kg N/ha or zero-N. Cowpea grain yield averaged 0.1-0.3 Mg/ha, and mean aboveground cowpea biomass produced and recycled was 0.54-0.64 Mg/ha among best cultivars (IT97-568-11 and IT89KD-288). NERICA8 seeded after cowpea cv. IT97-568-11 and supplied with 20N gave the greatest grain yield of about 2.0 Mg/ha, accounting for 500% heavier grains than fallow-rice rotation with zero-N. Mineral-N dynamics monitored under NERICA8 in year 2 showed that previous IT97-568-11 plots had the highest mineral-N at tillering which persisted till panicle initiation stage. The adoption of an ISFM comprising annual cowpea–NERICA sequence by smallholder rice farmers could enhance productivity and improve N-supply in fragile savannas. |
| format | Journal Article |
| id | CGSpace116555 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| record_format | dspace |
| spelling | CGSpace1165552025-12-08T09:54:28Z Enhancing Rice Productivity and Soil Nitrogen Using Dual-Purpose Cowpea-NERICA® Rice Sequence in Degraded Savanna Oikeh, S. Niang, A. Abaidoo, Robert C. Houngnandan, P. Futakuchi, K. Koné, B. Touré, A. soil fertility cowpeas savannahs ISFM (integrated soil fertility management) involving annual sequencing of dual-purpose early-maturing first crop of cowpeas with biomass incorporation before seeding second crop of early-maturing NERICA® (New Rice for Africa) was evaluated to enhance rice productivity and soil-nitrogen. Five dual-purpose early-maturing cowpea cultivars and local cultivar (Katchè) were seeded early in the wet season in five farmers' fields at Ouake (9°46' N, 1°35' E, highly degraded-savanna), Benin. After pod harvest, cowpea residues were minimally worked into the soil using minimum tillage with hand-hoe and seeded with early-maturing, resilient NERICA8 rice that received either 20 kg N/ha or zero-N. Cowpea grain yield averaged 0.1-0.3 Mg/ha, and mean aboveground cowpea biomass produced and recycled was 0.54-0.64 Mg/ha among best cultivars (IT97-568-11 and IT89KD-288). NERICA8 seeded after cowpea cv. IT97-568-11 and supplied with 20N gave the greatest grain yield of about 2.0 Mg/ha, accounting for 500% heavier grains than fallow-rice rotation with zero-N. Mineral-N dynamics monitored under NERICA8 in year 2 showed that previous IT97-568-11 plots had the highest mineral-N at tillering which persisted till panicle initiation stage. The adoption of an ISFM comprising annual cowpea–NERICA sequence by smallholder rice farmers could enhance productivity and improve N-supply in fragile savannas. 2012-11-30 2021-12-06T12:34:08Z 2021-12-06T12:34:08Z Journal Article https://hdl.handle.net/10568/116555 en Open Access Oikeh, S. Niang, A. Abaidoo, R. Houngnandan, P. Futakuchi, K. Koné, B. Touré, A. Enhancing Rice Productivity and Soil Nitrogen Using Dual-Purpose Cowpea-NERICA® Rice Sequence in Degraded Savanna. Journal of Life Sciences. 2012, Volume 6: 1237-1250. |
| spellingShingle | soil fertility cowpeas savannahs Oikeh, S. Niang, A. Abaidoo, Robert C. Houngnandan, P. Futakuchi, K. Koné, B. Touré, A. Enhancing Rice Productivity and Soil Nitrogen Using Dual-Purpose Cowpea-NERICA® Rice Sequence in Degraded Savanna |
| title | Enhancing Rice Productivity and Soil Nitrogen Using Dual-Purpose Cowpea-NERICA® Rice Sequence in Degraded Savanna |
| title_full | Enhancing Rice Productivity and Soil Nitrogen Using Dual-Purpose Cowpea-NERICA® Rice Sequence in Degraded Savanna |
| title_fullStr | Enhancing Rice Productivity and Soil Nitrogen Using Dual-Purpose Cowpea-NERICA® Rice Sequence in Degraded Savanna |
| title_full_unstemmed | Enhancing Rice Productivity and Soil Nitrogen Using Dual-Purpose Cowpea-NERICA® Rice Sequence in Degraded Savanna |
| title_short | Enhancing Rice Productivity and Soil Nitrogen Using Dual-Purpose Cowpea-NERICA® Rice Sequence in Degraded Savanna |
| title_sort | enhancing rice productivity and soil nitrogen using dual purpose cowpea nerica r rice sequence in degraded savanna |
| topic | soil fertility cowpeas savannahs |
| url | https://hdl.handle.net/10568/116555 |
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