The use of Sesbania (Sesbania rostrata) and urea in lowland rice production in Sierra Leone
The suitability of sesbania (Sesbania rostrata) as green manure for lowland rice was evaluated in the Inland Valley Swamp (IVS) of Sierra Leone, and attempts were made to identify appropriate methods of its management in combination with urea. Sesbania — rice intercropping and sesbania — rice rotati...
| Autores principales: | , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2000
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/92631 |
| _version_ | 1855522784642334720 |
|---|---|
| author | Bar, A.R. Baggie, I. Sanginga, N. |
| author_browse | Baggie, I. Bar, A.R. Sanginga, N. |
| author_facet | Bar, A.R. Baggie, I. Sanginga, N. |
| author_sort | Bar, A.R. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The suitability of sesbania (Sesbania rostrata) as green manure for lowland rice was evaluated in the Inland Valley Swamp (IVS) of Sierra Leone, and attempts were made to identify appropriate methods of its management in combination with urea. Sesbania — rice intercropping and sesbania — rice rotation treatments were compared with 60 kg N ha−1 applied in two splits and 30 kg N ha−1 as basal or top dressed to rice grown in the two cropping systems. The 15N isotope dilution technique was used to quantify N uptake from the green manure and urea and its utilization by rice. Rotating 40–50 days old sesbania two days prior to transplanting and top dressing with 30 kg N ha−1 as urea at nine weeks after transplanting gave highest rice grain yield (121% over the control without sesbania and urea). However intercropping sesbania with rice tended to increase N uptake and N fertilizer utilization more than the rotation treatments. The higher grain yield of rice in rotation despite lower N uptake than intercropping shows that other effects than only N explain the beneficial effect of sesbania on rice. |
| format | Journal Article |
| id | CGSpace92631 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2000 |
| publishDateRange | 2000 |
| publishDateSort | 2000 |
| record_format | dspace |
| spelling | CGSpace926312023-02-15T06:51:53Z The use of Sesbania (Sesbania rostrata) and urea in lowland rice production in Sierra Leone Bar, A.R. Baggie, I. Sanginga, N. acacia nilotica spp tomentosa biomass provenance growth variability sample size seed size sesbania rice production farmers food crop cropping systems The suitability of sesbania (Sesbania rostrata) as green manure for lowland rice was evaluated in the Inland Valley Swamp (IVS) of Sierra Leone, and attempts were made to identify appropriate methods of its management in combination with urea. Sesbania — rice intercropping and sesbania — rice rotation treatments were compared with 60 kg N ha−1 applied in two splits and 30 kg N ha−1 as basal or top dressed to rice grown in the two cropping systems. The 15N isotope dilution technique was used to quantify N uptake from the green manure and urea and its utilization by rice. Rotating 40–50 days old sesbania two days prior to transplanting and top dressing with 30 kg N ha−1 as urea at nine weeks after transplanting gave highest rice grain yield (121% over the control without sesbania and urea). However intercropping sesbania with rice tended to increase N uptake and N fertilizer utilization more than the rotation treatments. The higher grain yield of rice in rotation despite lower N uptake than intercropping shows that other effects than only N explain the beneficial effect of sesbania on rice. 2000 2018-05-17T09:02:55Z 2018-05-17T09:02:55Z Journal Article https://hdl.handle.net/10568/92631 en Limited Access Bar, A.R., Baggie, I. & Sanginga, N. (2000). The use of Sesbania (Sesbania rostrata) and urea in lowland rice production in Sierra Leone. Agroforestry Systems, 48(2), 111-118. |
| spellingShingle | acacia nilotica spp tomentosa biomass provenance growth variability sample size seed size sesbania rice production farmers food crop cropping systems Bar, A.R. Baggie, I. Sanginga, N. The use of Sesbania (Sesbania rostrata) and urea in lowland rice production in Sierra Leone |
| title | The use of Sesbania (Sesbania rostrata) and urea in lowland rice production in Sierra Leone |
| title_full | The use of Sesbania (Sesbania rostrata) and urea in lowland rice production in Sierra Leone |
| title_fullStr | The use of Sesbania (Sesbania rostrata) and urea in lowland rice production in Sierra Leone |
| title_full_unstemmed | The use of Sesbania (Sesbania rostrata) and urea in lowland rice production in Sierra Leone |
| title_short | The use of Sesbania (Sesbania rostrata) and urea in lowland rice production in Sierra Leone |
| title_sort | use of sesbania sesbania rostrata and urea in lowland rice production in sierra leone |
| topic | acacia nilotica spp tomentosa biomass provenance growth variability sample size seed size sesbania rice production farmers food crop cropping systems |
| url | https://hdl.handle.net/10568/92631 |
| work_keys_str_mv | AT barar theuseofsesbaniasesbaniarostrataandureainlowlandriceproductioninsierraleone AT baggiei theuseofsesbaniasesbaniarostrataandureainlowlandriceproductioninsierraleone AT sangingan theuseofsesbaniasesbaniarostrataandureainlowlandriceproductioninsierraleone AT barar useofsesbaniasesbaniarostrataandureainlowlandriceproductioninsierraleone AT baggiei useofsesbaniasesbaniarostrataandureainlowlandriceproductioninsierraleone AT sangingan useofsesbaniasesbaniarostrataandureainlowlandriceproductioninsierraleone |