Impact and opportunities of agroecological intensification strategies on farm performance: A case study of banana-based systems in Central and South-Western Uganda
Agroecological intensification (AEI) practices relying on on-farm diversity tend to close nutrient cycles and reduce dependency on external inputs in agricultural systems. These practices improve the productivity of banana-based systems in Uganda, but their extent of implementation differs between a...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Frontiers Media
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/108719 |
| _version_ | 1855517001981624320 |
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| author | Gambart, Clara Swennen, Rony L. Blomme, Guy Groot, Jeroen C.J. Remans, Roseline Ocimati, Walter |
| author_browse | Blomme, Guy Gambart, Clara Groot, Jeroen C.J. Ocimati, Walter Remans, Roseline Swennen, Rony L. |
| author_facet | Gambart, Clara Swennen, Rony L. Blomme, Guy Groot, Jeroen C.J. Remans, Roseline Ocimati, Walter |
| author_sort | Gambart, Clara |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Agroecological intensification (AEI) practices relying on on-farm diversity tend to close nutrient cycles and reduce dependency on external inputs in agricultural systems. These practices improve the productivity of banana-based systems in Uganda, but their extent of implementation differs between and within regions. However, the impact of AEI practices on a broader range of objectives including environmental and nutritional objectives, is hardly quantified. Additionally, recommendations to improve the farm performance, given these options, are lacking. We, therefore, analyzed the current farm performance for these broad range of objectives and explored optimal farm reconfigurations in two Ugandan districts, one in Central Uganda and one in Southwestern (SW) Uganda. Given the heterogeneity of smallholder farms, a farm typology based on the applied AEI practices was developed. It classified the subsistence farms in Central Uganda into two extreme groups with an average of 11.0 and 16.4 AEI practices applied per farm. Farms in SW Uganda were moderately intensified (i.e., 13.0 practices). The FarmDESIGN model revealed a higher species diversity, relatively higher profitability (2,039 – 3,270 $/ha/year) and nutritional yield on farms in Central Uganda. However, relatively high soil erosion levels (0.243 – 0.240) and negative nitrogen (N) balances (−72 to −50 kg N/ha/year) were indicative of unsustainable practices. In contrast, farms in SW Uganda were less diverse and more market oriented. Their commercial orientation allowed investments in soil fertility management, resulting in more sustainable [low soil erosion level (0.172) and positive N balance (5 kg/ha/year)], but less profitable (506 $/ha/year) systems. To improve farm performance, bananas and other perennials played a key role. Explorations with Calliandra calothyrsus (Calliandra) hedgerow or Mucuna pruriens (Mucuna) cover crop increased on-farm mulch production, improved sustainability indicators and profitability. We conclude that AEI practices can improve farm performance, and a more intensive use would be beneficial. In addition, the FarmDESIGN model provides a useful tool for redesigning these farms, proposing different redesigns depending on farmers' objectives (profitability, productivity or sustainability), and for evaluating ex ante the impact of new agricultural measures on farm performance. |
| format | Journal Article |
| id | CGSpace108719 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Frontiers Media |
| publisherStr | Frontiers Media |
| record_format | dspace |
| spelling | CGSpace1087192025-11-12T05:38:34Z Impact and opportunities of agroecological intensification strategies on farm performance: A case study of banana-based systems in Central and South-Western Uganda Gambart, Clara Swennen, Rony L. Blomme, Guy Groot, Jeroen C.J. Remans, Roseline Ocimati, Walter agroecology farms farm management farm budget sustainability profitability productivity agroecología explotaciones agrarias manejio de fincas horticulture ecology food science Agroecological intensification (AEI) practices relying on on-farm diversity tend to close nutrient cycles and reduce dependency on external inputs in agricultural systems. These practices improve the productivity of banana-based systems in Uganda, but their extent of implementation differs between and within regions. However, the impact of AEI practices on a broader range of objectives including environmental and nutritional objectives, is hardly quantified. Additionally, recommendations to improve the farm performance, given these options, are lacking. We, therefore, analyzed the current farm performance for these broad range of objectives and explored optimal farm reconfigurations in two Ugandan districts, one in Central Uganda and one in Southwestern (SW) Uganda. Given the heterogeneity of smallholder farms, a farm typology based on the applied AEI practices was developed. It classified the subsistence farms in Central Uganda into two extreme groups with an average of 11.0 and 16.4 AEI practices applied per farm. Farms in SW Uganda were moderately intensified (i.e., 13.0 practices). The FarmDESIGN model revealed a higher species diversity, relatively higher profitability (2,039 – 3,270 $/ha/year) and nutritional yield on farms in Central Uganda. However, relatively high soil erosion levels (0.243 – 0.240) and negative nitrogen (N) balances (−72 to −50 kg N/ha/year) were indicative of unsustainable practices. In contrast, farms in SW Uganda were less diverse and more market oriented. Their commercial orientation allowed investments in soil fertility management, resulting in more sustainable [low soil erosion level (0.172) and positive N balance (5 kg/ha/year)], but less profitable (506 $/ha/year) systems. To improve farm performance, bananas and other perennials played a key role. Explorations with Calliandra calothyrsus (Calliandra) hedgerow or Mucuna pruriens (Mucuna) cover crop increased on-farm mulch production, improved sustainability indicators and profitability. We conclude that AEI practices can improve farm performance, and a more intensive use would be beneficial. In addition, the FarmDESIGN model provides a useful tool for redesigning these farms, proposing different redesigns depending on farmers' objectives (profitability, productivity or sustainability), and for evaluating ex ante the impact of new agricultural measures on farm performance. 2020-07 2020-07-08T11:42:52Z 2020-07-08T11:42:52Z Journal Article https://hdl.handle.net/10568/108719 en Open Access application/pdf Frontiers Media Gambart, C.; Swennen, R.; Blomme, G.; Groot, J.C.J.; Remans R.; Ocimati, W. (2020) Impact and opportunities of agroecological intensification strategies on farm performance: A case study of banana-based systems in Central and South-Western Uganda. Frontiers in Sustainable Food Systems 4: 87 13 p. ISSN: 2571-581X |
| spellingShingle | agroecology farms farm management farm budget sustainability profitability productivity agroecología explotaciones agrarias manejio de fincas horticulture ecology food science Gambart, Clara Swennen, Rony L. Blomme, Guy Groot, Jeroen C.J. Remans, Roseline Ocimati, Walter Impact and opportunities of agroecological intensification strategies on farm performance: A case study of banana-based systems in Central and South-Western Uganda |
| title | Impact and opportunities of agroecological intensification strategies on farm performance: A case study of banana-based systems in Central and South-Western Uganda |
| title_full | Impact and opportunities of agroecological intensification strategies on farm performance: A case study of banana-based systems in Central and South-Western Uganda |
| title_fullStr | Impact and opportunities of agroecological intensification strategies on farm performance: A case study of banana-based systems in Central and South-Western Uganda |
| title_full_unstemmed | Impact and opportunities of agroecological intensification strategies on farm performance: A case study of banana-based systems in Central and South-Western Uganda |
| title_short | Impact and opportunities of agroecological intensification strategies on farm performance: A case study of banana-based systems in Central and South-Western Uganda |
| title_sort | impact and opportunities of agroecological intensification strategies on farm performance a case study of banana based systems in central and south western uganda |
| topic | agroecology farms farm management farm budget sustainability profitability productivity agroecología explotaciones agrarias manejio de fincas horticulture ecology food science |
| url | https://hdl.handle.net/10568/108719 |
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