Farm level best fit rainwater management strategies and soil improvement methods for seed and biomass yield in a maize soy bean intercrop
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by E.K. Panyan, N. Karbo, F.K. Avornyo, A., Ayantunde, F. Kizito, K. Tengan Presented at the Final Volta Basin Development Challenge Science Workshop, September 2013
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Farm level best fit rainwater management strategies and soil improvement methods for seed and biomass yield in a maize soy bean intercrop
- 1. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta Farm level best fit rainwater management strategies and soil improvement methods for seed and biomass yield in a maize-soy bean intercrop. 1 Panyan, E.K., 1 Karbo N., 1 Avornyo, F.K., 2 Ayantunde, A.,Kizito3 , F and 1 Tengan, K. 1 Animal Research Institute, P.O. Box 52, Nyankpala near Tamale, Ghana 2 International Livestock Research Institute, Ouagadougou, Burkina Faso 3 International Water Management Institute, Accra, Ghana
- 2. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta PRESENTATION OUTLINE: ο Key message ο Objective of the study ο Methodology ο Results ο Lessons ο Conclusions
- 3. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta KEY MESSAGE: ο Integrated rainwater management strategies can close yield gabs on smallholder farms ο In the event of scaling up, the internal and external inputs become crucial and should be addressed ο The PAR as a tool has the potential to build the adaptive capacity of smallholder farmers
- 4. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta OBJECTIVE OF STUDY: The main V2 project objective is to identify, evaluate, adapt and disseminate best-fit integrated rainwater management strategies targeted to different biophysical and socio-economic domains in the Volta basin in northern Ghana.
- 5. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta METHODOLOGY Participatory Action Research: ο Innovation Platforms to validate value chain commodities and the problems identified from PRAs ο IPs and researchers designed PAR protocol in workshop ο Training of farmer experimenters and extension agents on protocol ο Farmer field cross visits
- 6. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta METHODOLOGY CONTD. On-farm experimentation: Study location and farmer engagement; ο Two districts ( Lawra and Tolon) ο Two communities per district (4 communities) ο 32 Farmer experimenters (16 men 16 women) for all locations ο 5 Treatments per farmer with 3 replicates on 10m x10m sub-plot On-station experimentation ο Experiment repeated with 2 additional treatments (7 treatments).
- 7. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta Explanation of treatments applied on farmersβ fields Treatment Soil water management Soil fertility management Tied ridges Contour bunds Organic manure Inorganic fertilizer 1 2 β β 3 β β 4 β β β 5 β β β All farmers sowed maize/soy bean intercrop
- 8. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta METHODOLOGY CONTD. Measurements: Dependent variables monitored; ο Net grain yield(maize & soybean) ο Crop residue yield (bulk dry matter) Cost benefit analysis of interventions Statistical analysis: ο SAS was used to analyze the data and Student Newman-Keuls used to separate the means with p<0.05 being significant.
- 9. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta Results Maize and soy seed and biomass, Treatments Lawra and Tolon
- 10. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta RESULTS CONTD. Maize and soy seed and biomass, communities Lawra and Tolon
- 11. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta RESULTS CONTD. MAIZE & SOY SEED AND BIOMASS LAWRA AND TOLON
- 12. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta RESULTS CONTD. Maize and soy seed and biomass, gender Lawra and Tolon
- 13. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta Treatments and average net profits Treatments Average net profit ($) across sites (N=28) Average net profit ($) for Lawra site (N=12) Average net profit ($) for Tolon site (N=16) T1 -8.00 -64.00 32.00 T2 61.00 -19.00 123.00 T3 16.00 -59.00 73.00 T4 56.00 84.00 34.00 T5 116.00 62.00 156.00 N=Number of farmers used in computation
- 14. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta LESSONS LEARNED: ο Farmer experimenters appeared more willing to put interventions on poorer lands. ο IPs are important in PAR for problem identification and information sharing. ο Farmers are motivated by increased yield to have a voice in selection of treatments. ο For the resource poor, good agronomic cultural practices could be a means to achieving good yield.
- 15. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta CONCLUSIONS ο Integrated rainwater management strategies at farm level have potential to close yield gabs with food security outcomes. ο Colossal plant biomass generated has potential to address livestock dry season feed needs and sustain crop-livestock systems. ο Where economic decisions are paramount Rainwater management strategies may require site- specific recommendations.
- 16. Andes β’ Ganges β’ Limpopo β’ Mekong β’ Nile β’ Volta THANK YOU!