2024-03-29T09:09:21+01:00
https://library.wur.nl/oai
oai:library.wur.nl:wurpubs/589679
2024-03-27
edurep
openaire
public
publickb
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