Manure matters: prospects for regional banana-livestock integration for sustainable intensification in South-West Uganda
In South-West Uganda, manure is highly valued for sustaining yields of East African Highland Banana, but it is in short supply. As a result, banana growers import manure from rangelands up to 50 km away. We aimed to explore the potential of this regional banana-livestock integration to meet crop nutrient requirements for sustainable intensification of banana cropping systems. We used a mixed-methods approach supported by detailed data collection. Multiple spatial levels were integrated: field-level modelling to determine long-term nutrient requirements, a household-level survey to characterize farmer practices, and a regional-level spatial analysis to map banana production and manure source areas. For median to 90th percentile banana yields (37-52 t FW/ha/year), minimum K requirements were 118–228 kg/ha/year. To supply this with manure, 10.5–20.5 t DM manure/ha/year would be needed, requiring 47–91 tropical livestock units and 27–52 ha of rangeland, far more than what is potentially available currently. However, using only manure to satisfy potassium requirements increases the risk of N losses due to nutrient imbalances likely to result from large manure applications. For sustainable intensification, manure supplemented with K-based fertilizers is a better option than manure alone, as it is more cost-effective and reduces potential N losses.
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| Format: | Article/Letter to editor biblioteca |
| Language: | English |
| Subjects: | East African highland banana, cattle, crop-livestock integration, nutrient requirements, potassium, spatial analysis, |
| Online Access: | https://research.wur.nl/en/publications/manure-matters-prospects-for-regional-banana-livestock-integratio |
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dig-wur-nl-wurpubs-5896792024-10-02 den Braber, Harmen van de Ven, Gerrie Ronner, Esther Marinus, Wytze Languillaume, Antoine Ochola, Dennis Taulya, Godfrey Giller, Ken E. Descheemaeker, Katrien Article/Letter to editor International Journal of Agricultural Sustainability 20 (2022) 5 ISSN: 1473-5903 Manure matters: prospects for regional banana-livestock integration for sustainable intensification in South-West Uganda 2022 In South-West Uganda, manure is highly valued for sustaining yields of East African Highland Banana, but it is in short supply. As a result, banana growers import manure from rangelands up to 50 km away. We aimed to explore the potential of this regional banana-livestock integration to meet crop nutrient requirements for sustainable intensification of banana cropping systems. We used a mixed-methods approach supported by detailed data collection. Multiple spatial levels were integrated: field-level modelling to determine long-term nutrient requirements, a household-level survey to characterize farmer practices, and a regional-level spatial analysis to map banana production and manure source areas. For median to 90th percentile banana yields (37-52 t FW/ha/year), minimum K requirements were 118–228 kg/ha/year. To supply this with manure, 10.5–20.5 t DM manure/ha/year would be needed, requiring 47–91 tropical livestock units and 27–52 ha of rangeland, far more than what is potentially available currently. However, using only manure to satisfy potassium requirements increases the risk of N losses due to nutrient imbalances likely to result from large manure applications. For sustainable intensification, manure supplemented with K-based fertilizers is a better option than manure alone, as it is more cost-effective and reduces potential N losses. en application/pdf https://research.wur.nl/en/publications/manure-matters-prospects-for-regional-banana-livestock-integratio 10.1080/14735903.2021.1988478 https://edepot.wur.nl/557754 East African highland banana cattle crop-livestock integration nutrient requirements potassium spatial analysis https://creativecommons.org/licenses/by-nc-nd/4.0/ https://creativecommons.org/licenses/by-nc-nd/4.0/ Wageningen University & Research |
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East African highland banana cattle crop-livestock integration nutrient requirements potassium spatial analysis East African highland banana cattle crop-livestock integration nutrient requirements potassium spatial analysis |
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East African highland banana cattle crop-livestock integration nutrient requirements potassium spatial analysis East African highland banana cattle crop-livestock integration nutrient requirements potassium spatial analysis den Braber, Harmen van de Ven, Gerrie Ronner, Esther Marinus, Wytze Languillaume, Antoine Ochola, Dennis Taulya, Godfrey Giller, Ken E. Descheemaeker, Katrien Manure matters: prospects for regional banana-livestock integration for sustainable intensification in South-West Uganda |
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In South-West Uganda, manure is highly valued for sustaining yields of East African Highland Banana, but it is in short supply. As a result, banana growers import manure from rangelands up to 50 km away. We aimed to explore the potential of this regional banana-livestock integration to meet crop nutrient requirements for sustainable intensification of banana cropping systems. We used a mixed-methods approach supported by detailed data collection. Multiple spatial levels were integrated: field-level modelling to determine long-term nutrient requirements, a household-level survey to characterize farmer practices, and a regional-level spatial analysis to map banana production and manure source areas. For median to 90th percentile banana yields (37-52 t FW/ha/year), minimum K requirements were 118–228 kg/ha/year. To supply this with manure, 10.5–20.5 t DM manure/ha/year would be needed, requiring 47–91 tropical livestock units and 27–52 ha of rangeland, far more than what is potentially available currently. However, using only manure to satisfy potassium requirements increases the risk of N losses due to nutrient imbalances likely to result from large manure applications. For sustainable intensification, manure supplemented with K-based fertilizers is a better option than manure alone, as it is more cost-effective and reduces potential N losses. |
| format |
Article/Letter to editor |
| topic_facet |
East African highland banana cattle crop-livestock integration nutrient requirements potassium spatial analysis |
| author |
den Braber, Harmen van de Ven, Gerrie Ronner, Esther Marinus, Wytze Languillaume, Antoine Ochola, Dennis Taulya, Godfrey Giller, Ken E. Descheemaeker, Katrien |
| author_facet |
den Braber, Harmen van de Ven, Gerrie Ronner, Esther Marinus, Wytze Languillaume, Antoine Ochola, Dennis Taulya, Godfrey Giller, Ken E. Descheemaeker, Katrien |
| author_sort |
den Braber, Harmen |
| title |
Manure matters: prospects for regional banana-livestock integration for sustainable intensification in South-West Uganda |
| title_short |
Manure matters: prospects for regional banana-livestock integration for sustainable intensification in South-West Uganda |
| title_full |
Manure matters: prospects for regional banana-livestock integration for sustainable intensification in South-West Uganda |
| title_fullStr |
Manure matters: prospects for regional banana-livestock integration for sustainable intensification in South-West Uganda |
| title_full_unstemmed |
Manure matters: prospects for regional banana-livestock integration for sustainable intensification in South-West Uganda |
| title_sort |
manure matters: prospects for regional banana-livestock integration for sustainable intensification in south-west uganda |
| url |
https://research.wur.nl/en/publications/manure-matters-prospects-for-regional-banana-livestock-integratio |
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