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Adoption of maize production technologies in Northern Tanzania

Author: Nkonya, E.M.
Author: Xavery, P.
Author: Akonaay, H.B.
Author: Mwangi, W.M.
Author: Anandajayasekeram, P.
Author: Verkuijl, H.
Author: Martella, D.
Author: Moshi, A.J.
Year: 1998
ISBN: 970-648-003-X
URI: http://hdl.handle.net/10883/957
Descriptors: Credit policies
Descriptors: Zea mays
Descriptors: Hybrids
Descriptors: Varieties
Descriptors: Production factors
Descriptors: Weeding
Descriptors: Maize
Descriptors: Cropping patterns
Abstract: The impact of maize research and extension in Tanzania's Northern Zone during the past 20 years was evaluated through a formal survey in 1995. Data were grouped into two major agroecological zones: the intermediate and the lowland sub-zones. Sample farmers were also categorized based on land preparation method. A two-step Heckman's procedure was used to simultaneously analyze factors affecting adoption of improved maize seed and inorganic fertilizer. The study found that demand for composite seed was less than that for hybrids, although the National Maize Research Program had released more composites, which can be recycled. Farming experience was the only factor that significantly influenced the probability of adoption improved maize in the intermediate zone. No factor significantly influenced intensity of adoption of improved seed. About 80% of farmers recycled improved varieties, including hybrids, contrary to recommendations. The rate of adoption of chemical fertilizers was low, influenced only by the number of livestock units. No farm characteristic influenced intensity of fertilizer adoption. Recommendations on fertilizer placement were poorly followed, which magnifies the negative impact of the poor management of crop residues in the zone. Formal credit is not available to maize farmers; with rising input prices, this dynamic will become more critical. Adoption of recommendations on land preparation, frequency and timing of weeding and fertilizer application, and plant spacing have been successfully adopted in both zones. Recommendations based on survey results include the development of additional hybrids for the Northern Zone and/or village level production of composite seed; research on the economics of recycling improved varieties (including both composites and hybrids); more research and extension effort direct toward efficient use of fertilizers (manure, chemical fertilizer, and crop residues); and encouraging measures by banks and policy markers to make credit more available to small maize farmers with high rate of loan recovery and low cost of administration.
Language: English
Publisher: SADC
Publisher: CIMMYT
Publisher: SACCAR
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
Type: Book
Country: United Republic of Tanzania
Region: Eastern Africa
Place: Mexico
Pages: 42 pages


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This item appears in the following Collection(s)

  • Maize
    Maize breeding, phytopathology, entomology, physiology, quality, and biotech
  • Socioeconomics
    Including topics such as farming systems, markets, impact & targeting, innovations, and GIS

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