Descubre y comparte nuestro conocimiento público

Se han encontrado 12 recursos

Resultados de búsqueda

Sanders, J.H.[Defining the relevant constraints in crop programs: data requirements to improve research resource allocation]Defining the relevant constraints in crop programs: data requirements to improve research resource allocation

The trends and yield constraints in production systems of beans and cassava are analyzed; examples are given of the role of 3 types of information (macro stage, micro stage, and critical inference stage) in the design of research for beans and cassava at the Centro Internacional de Agricultura Tr...


Sanders, J.H.Lynam, John K.[Trends and yield constraints in the production systems of beans and cassava in Latin America with emphasis on research design implications]Trends and yield constraints in the production systems of beans and cassava in Latin America with emphasis on research design implications

Schwartz, Howard F.Sanders, J.H.[Plant diseases of dry beans (Phaseolus vulgaris L.) in Latin America and strategies for their control]Plant diseases of dry beans (Phaseolus vulgaris L.) in Latin America and strategies for their control

A methodology is presented on how to study bean production processes and its on-farm application in Colombia. The main objectives are to identify the factors limiting production and productivity, availability and use of resources, credit, technical assistance, markets, pest and weed distribution ...


Ruiz de Londoño, NorhaInfante, MAPinstrup-Andersen, PerSanders, J.H.[Estudio agroeconomico del proceso de produccion de frijol (Phaseolus vulgaris) en Colombia]Estudio agroeconomico del proceso de produccion de frijol (Phaseolus vulgaris) en Colombia

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, LSanders, J.H.[Analisis economico de los experimentos de PROMYF con frijol en postrera, Honduras 1976]Analisis economico de los experimentos de PROMYF con frijol en postrera, Honduras 1976
Autor: Sanders, J.H.

L.A. bean production has stagnated due to the continuing yield declines. Production has been maintained by area expansion in some countries (Brazil); in others, it has increased due to a strong export demand from European and Venezuelan markets. High population and per capita income growth kept d...

La produccion del frijol en America Latina se ha estancado con las continuas disminuciones en los rendimientos. En algunos paises (Brasil), la produccion se ha mantenido mediante la expansion del area de cultivo; en otros, ha aumentado debido a una fuerte demanda de exportacion de los mercados eu...


Sanders, J.H.[Beans]Beans

Beans are attacked by a large no. of plant pathogens and insect pests, many of which can reduce yields drastically. Farmers with small land holdings usually have limited resources but produce most of the beans in L.A. Control strategies feasible for these growers may be restricted to those strate...

El frijol es atacado por un gran no. de organismos fitopatogenos y plagas, muchas de las cuales disminuyen los rendimientos significativamente. Los agricultores que poseen pequenas parcelas tienen generalmente ingresos muy limitados pero producen casi todo el frijol en America Latina. Las estrate...


Sanders, J.H.Schwartz, Howard F.[Bean production and pest constraints in Latin America]Bean production and pest constraints in Latin America

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.Sanders, J.H.[Fertilizer use in semiarid West Africa: Profitability and supporting policy]Fertilizer use in semiarid West Africa: Profitability and supporting policy
Sanders, J.H.Álvarez Payan, C.[Evolucion de la produccion de frijol en America Latina durante la ultima decada]Evolucion de la produccion de frijol en America Latina durante la ultima decada

In spite of substantial introduction of new sorghum and millet cultivars in semiarid Sub-Saharan Africa, there has been minimum aggregate impact on yields (FAO and ICRISAT, 1996: The World Sorghum Economies: Facts, Trends and Outlook. FAO, Rome, Italy and ICRISAT, Andhra Pradesh, India) in contra...


Ahmed, M.M.Sanders, J.H.Nell, W.T.[New sorghum and millet cultivar introduction in sub-Saharan Africa: Impacts and research agenda]New sorghum and millet cultivar introduction in sub-Saharan Africa: Impacts and research agenda

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso