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On-farm evaluation of biological nitrogen fixation potential and grain yield of Lablab and two soybean varieties in the northern Guinea savanna of Nigeria
This article is published by Springer,2005 and is also available at DOI 10.1007/s10705-005-3821-7
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| Language: | English |
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Springer
2023
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| _version_ | 1867613133699284992 |
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| access_status_str | Open Access |
| author | Okogun J.A. Sanginga N. Abaidoo R. C Dashiell K.E. Diels J. |
| author2 | 0000-0002-1235-2252 |
| author_browse | 0000-0002-1235-2252 Abaidoo R. C Dashiell K.E. Diels J. Okogun J.A. Sanginga N. |
| author_facet | 0000-0002-1235-2252 Okogun J.A. Sanginga N. Abaidoo R. C Dashiell K.E. Diels J. |
| author_sort | Okogun J.A. |
| collection | Thesis |
| description | This article is published by Springer,2005 and is also available at DOI 10.1007/s10705-005-3821-7 |
| format | Article |
| id | oai:ir.knust.edu.gh:123456789/14892 |
| institution | KNUST (Ghana) |
| language | English |
| last_indexed | 2026-06-10T12:31:18.486Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from KNUSTSpace — Kwame Nkrumah University of Science & Technology (Ghana) |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| source_str | KNUSTSpace — Kwame Nkrumah University of Science & Technology (Ghana) |
| spelling | oai:ir.knust.edu.gh:123456789/14892 On-farm evaluation of biological nitrogen fixation potential and grain yield of Lablab and two soybean varieties in the northern Guinea savanna of Nigeria Okogun J.A. Sanginga N. Abaidoo R. C Dashiell K.E. Diels J. 0000-0002-1235-2252 This article is published by Springer,2005 and is also available at DOI 10.1007/s10705-005-3821-7 Several legumes with high biological nitrogen fixation (BNF) potentials have been studied in on-station trials. The processes involved in BNF and the benefits of these species to crop production need to be evaluated using farmers’ management practices in farmers’ fields. An on-farm trial with 20 farmers was conducted in the northern Guinea savanna (NGS) of Nigeria. The aims were to evaluate the BNF potentials of an improved soybean variety (TGx 1448-2E) and a local variety (Samsoy-2) when inoculated with Bradyrhizobium strains, and of Lablab in farmer-managed and researcher-managed soybean-maize and Lablab-maize crop rotation systems. The level of soil P was generally low with more than 50% of the fields having less than the critical P level. The plant available P content was statistically significantly (P = 0.05) correlated with P in grain (r = 0.60), P in the shoot (r = 0.68), grain yield (r = 0.40) and nodule weight (r = 0.35). Variations in plant parameters (nodulation, shoot dry matter, percentage nitrogen derived from the air [%Ndfa], grain yield, and nutrient uptake) among and within farmers’ fields were attributed to differences in soil fertility and crop management. About 60% of the fields were mod erately fertile, sufficient to support legume establishment, while about 30% of the farmers’ fields had a low fertility level. For farmers in the study area to benefit from the BNF potentials of the legumes, an external P fertilizer input was necessary as well as suitable crop management practices because all parameters mea sured in the researcher-managed plots were higher than in the farmer-managed plots. KNUST 2023-12-18T09:47:12Z 2023-12-18T09:47:12Z 2005 Article Nutrient Cycling in Agroecosystems (2005) 73:267–275 10.1007/s10705-005-3821-7 https://ir.knust.edu.gh/handle/123456789/14892 en application/pdf Springer |
| spellingShingle | Okogun J.A. Sanginga N. Abaidoo R. C Dashiell K.E. Diels J. On-farm evaluation of biological nitrogen fixation potential and grain yield of Lablab and two soybean varieties in the northern Guinea savanna of Nigeria |
| title | On-farm evaluation of biological nitrogen fixation potential and grain yield of Lablab and two soybean varieties in the northern Guinea savanna of Nigeria |
| title_full | On-farm evaluation of biological nitrogen fixation potential and grain yield of Lablab and two soybean varieties in the northern Guinea savanna of Nigeria |
| title_fullStr | On-farm evaluation of biological nitrogen fixation potential and grain yield of Lablab and two soybean varieties in the northern Guinea savanna of Nigeria |
| title_full_unstemmed | On-farm evaluation of biological nitrogen fixation potential and grain yield of Lablab and two soybean varieties in the northern Guinea savanna of Nigeria |
| title_short | On-farm evaluation of biological nitrogen fixation potential and grain yield of Lablab and two soybean varieties in the northern Guinea savanna of Nigeria |
| title_sort | on farm evaluation of biological nitrogen fixation potential and grain yield of lablab and two soybean varieties in the northern guinea savanna of nigeria |
| url | https://ir.knust.edu.gh/handle/123456789/14892 |
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