This study modeled the introduction of new early cultivars of millet and cowpea, higher cowpea densities, and various fertilization strategies. Model results were then compared with farmer behaviour before and after the availability of these new technologies. The model correctly identified the tw...
Shapiro, Barry I.
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Sanders, J.H.
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Reddy, K.C.
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Baker, T.G.
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[Evaluating and adapting new technologies in a high-risk agricultural system - Niger]
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Evaluating and adapting new technologies in a high-risk agricultural system - Niger
In 1976 expt. were conducted on var. trials, fertilization, insecticides, and herbicides in order to identify new technology that could be introduced into small- and intermediate-scale bean production in Honduras. Factors of a complete technological package were also discarded to identify the mos...
Alvarado, L
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Sanders, J.H.
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[Analisis economico de los experimentos de PROMYF con frijol en postrera, Honduras 1976]
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Analisis economico de los experimentos de PROMYF con frijol en postrera, Honduras 1976
In semiarid West Africa, inorganic fertilizer use and sustainability objectives are complementary. With increasing population pressure and low levels of purchased inputs, crop yields in many regions are declining. Moderate use of inorganic fertilizer is required for increasing yields in a sustain...
Shapiro, Barry I.
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Sanders, J.H.
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[Fertilizer use in semiarid West Africa: Profitability and supporting policy]
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Fertilizer use in semiarid West Africa: Profitability and supporting policy
Sanders, J.H.
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Álvarez Payan, C.
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[Evolucion de la produccion de frijol en America Latina durante la ultima decada]
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Evolucion de la produccion de frijol en America Latina durante la ultima decada
On-farm research results of 3 yr evaluating new bean technology (var. and cultural practices) at Pitalito, Suaza, and Timana in southern Huila, Colombia, are presented. Clean seed, insecticides, increased plant density, fertilizers, and new var. for both monocropped and associated (maize) beans w...
Ruiz de Londoño, Norha
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Sanders, J.H.
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Pachico, Douglas H.
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Herrera Durán, O.
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[Evaluacion de nueva tecnologia de frijol a nivel de finca sur de Huila, Colombia, 1978-1980]
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Evaluacion de nueva tecnologia de frijol a nivel de finca sur de Huila, Colombia, 1978-1980
An important debate is currently under way among researchers and policy makers about the relative merits of using organic versus inorganic fertilisers to improve soil fertility in semi-arid areas of sub-Saharan Africa. Environmentalists argue that use of inorganic fertiliser contributes to natura...
Shapiro, Barry I.
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Sanders, J.H.
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[Livestock Policy Analysis Brief no. 9 . Fertiliser use in semi-arid West Africa: Profitability and supporting policy]
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Livestock Policy Analysis Brief no. 9 . Fertiliser use in semi-arid West Africa: Profitability and supporting policy