Precision of farmerbased fertility ratings and soil organic carbon for crop production on a Ferralsol
Abstract. Simple and affordable soil fertility ratings are essential, particularly for the resource-constrained farmers in sub-Saharan Africa (SSA), in planning and implementing prudent interventions. A study was conducted on Ferralsols in Uganda to evaluate farmer-based soil fertility assessment te...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Copernicus GmbH
2015
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/73000 |
| _version_ | 1855532487029030912 |
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| author | Musinguzi, P. Ebanyat, Peter Tenywa, J.S. Basamba, T.A.A. Tenywa, M.M. Mubiru, D. |
| author_browse | Basamba, T.A.A. Ebanyat, Peter Mubiru, D. Musinguzi, P. Tenywa, J.S. Tenywa, M.M. |
| author_facet | Musinguzi, P. Ebanyat, Peter Tenywa, J.S. Basamba, T.A.A. Tenywa, M.M. Mubiru, D. |
| author_sort | Musinguzi, P. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Abstract. Simple and affordable soil fertility ratings are essential, particularly for the resource-constrained farmers in sub-Saharan Africa (SSA), in planning and implementing prudent interventions. A study was conducted on Ferralsols in Uganda to evaluate farmer-based soil fertility assessment techniques, hereafter referred to as farmers' field experiences (FFE), for ease of use and precision, against more formal scientific quantitative ratings using soil organic carbon (SQR-SOC). A total of 30 fields were investigated and rated using both techniques, as low, medium and high in terms of soil fertility – with maize as the test crop. Both soil fertility rating techniques were fairly precise in delineating soil fertility classes, though the FFE was inefficient in distinguishing fields > 1.2 % SOC with medium and high fertility. Soil organic carbon, silt and clay were exceptionally influential, accounting for the highest percentage in grain yield of 50 % in the topsoil (0–15 cm) and 67 % for the mean concentrations from 0 to 15 and 15 to 30 cm. Each unit increase in SOC concentration resulted in 966 to 1223 kg ha−1 yield gain. The FFE technique was effective in identifying low-fertility fields, and this was coherent with the fields categorized as low (SOC < 1.2 %). Beyond this level, its precision can be remarkably increased when supplemented with the SQR-SOC technique. |
| format | Journal Article |
| id | CGSpace73000 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Copernicus GmbH |
| publisherStr | Copernicus GmbH |
| record_format | dspace |
| spelling | CGSpace730002023-10-02T10:01:40Z Precision of farmerbased fertility ratings and soil organic carbon for crop production on a Ferralsol Musinguzi, P. Ebanyat, Peter Tenywa, J.S. Basamba, T.A.A. Tenywa, M.M. Mubiru, D. ferralsol soil fertility crop production soil organic soil degradation soil management maize Abstract. Simple and affordable soil fertility ratings are essential, particularly for the resource-constrained farmers in sub-Saharan Africa (SSA), in planning and implementing prudent interventions. A study was conducted on Ferralsols in Uganda to evaluate farmer-based soil fertility assessment techniques, hereafter referred to as farmers' field experiences (FFE), for ease of use and precision, against more formal scientific quantitative ratings using soil organic carbon (SQR-SOC). A total of 30 fields were investigated and rated using both techniques, as low, medium and high in terms of soil fertility – with maize as the test crop. Both soil fertility rating techniques were fairly precise in delineating soil fertility classes, though the FFE was inefficient in distinguishing fields > 1.2 % SOC with medium and high fertility. Soil organic carbon, silt and clay were exceptionally influential, accounting for the highest percentage in grain yield of 50 % in the topsoil (0–15 cm) and 67 % for the mean concentrations from 0 to 15 and 15 to 30 cm. Each unit increase in SOC concentration resulted in 966 to 1223 kg ha−1 yield gain. The FFE technique was effective in identifying low-fertility fields, and this was coherent with the fields categorized as low (SOC < 1.2 %). Beyond this level, its precision can be remarkably increased when supplemented with the SQR-SOC technique. 2015 2016-04-21T07:16:36Z 2016-04-21T07:16:36Z Journal Article https://hdl.handle.net/10568/73000 en Open Access Copernicus GmbH Musinguzi, P., Ebanyat, P., Tenywa, J.S., Basamba, T.A., Tenywa, M.M. & Mubiru, D. (2015). Precision of farmer based fertility ratings and soil organic carbon for crop production on a Ferralsol. Solid Earth Discussions, 7(1), 1237-1261. |
| spellingShingle | ferralsol soil fertility crop production soil organic soil degradation soil management maize Musinguzi, P. Ebanyat, Peter Tenywa, J.S. Basamba, T.A.A. Tenywa, M.M. Mubiru, D. Precision of farmerbased fertility ratings and soil organic carbon for crop production on a Ferralsol |
| title | Precision of farmerbased fertility ratings and soil organic carbon for crop production on a Ferralsol |
| title_full | Precision of farmerbased fertility ratings and soil organic carbon for crop production on a Ferralsol |
| title_fullStr | Precision of farmerbased fertility ratings and soil organic carbon for crop production on a Ferralsol |
| title_full_unstemmed | Precision of farmerbased fertility ratings and soil organic carbon for crop production on a Ferralsol |
| title_short | Precision of farmerbased fertility ratings and soil organic carbon for crop production on a Ferralsol |
| title_sort | precision of farmerbased fertility ratings and soil organic carbon for crop production on a ferralsol |
| topic | ferralsol soil fertility crop production soil organic soil degradation soil management maize |
| url | https://hdl.handle.net/10568/73000 |
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