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Title: Sustainable irrigation development : the adoption of small-scale pumped irrigation in Malawi
Author: Kamwamba-Mtethiwa, Jean Tiyamika
ISNI:       0000 0004 5915 3693
Awarding Body: Cranfield University
Current Institution: Cranfield University
Date of Award: 2016
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There has been an increased interest on small-scale pumped irrigation (SSPI) in Sub Saharan Africa (SSA), however little is known on the adoption processes behind this technology. Moreover, the conditions for successful SSPI adoption remain largely unexplored. This research aims to achieve a deeper understanding of the present adoption processes to inform future policy. The thesis was framed around the diffusion of innovations model (Rogers 2003), using the systematic review methodology and field surveys. Interviews involving 212 farmers and 25 other stakeholders were conducted between 2013 and 2014 within 3 districts in Malawi. The responses were analysed using descriptive statistics and content analysis. The systematic review revealed that evidence relating to pump performance in SSA was limited, lacked standards and confined within particular regions. The field surveys identified that four different pumped systems have been adopted by farmers in Malawi; group treadle, individual treadle, group motorized and individual motorized. Farmers generally prefer individually managed pumps that are easy to operate and fit in with their existing farming practices. Adoption is driven either by the attributes of self-motivated farmers or by incentives such as free or subsidized pumps. While adoption by self-motivated farmers is consistent with Rogers (2003) model, adoption due to incentives shows differences. The research proposes a modification to the Rogers (2003) model and revised definition of success in SSPI adoption, leading to a new framework showing pathways of success. This framework identifies the routes taken by farmers who successfully adopt or discontinue using pumps. Incentive farmers are typically the poorer; these need continued external support to survive the learning curve. For self-motivated farmers, their higher socio-economic status supports successful adoption. To ensure sustainability, SSPI promoters need to offer continued support to incentive farmers and/or reduce barriers to accessing the pumps for self-motivated farmers.
Supervisor: Weatherhead, E. K. ; Knox, Jerry W. Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: farmers ; diffusion of innovations ; incentives ; technology ; Africa