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The study contributes to the search for a methodology to assess soil conservation, particularly in developing countries. The study first assesses the economics of soil conservation in general - with special emphasis on the relationships between technology, economic analysis and policy implication...
Statistics are presented of bean prices and av. prices (Col$/lb) for the consumer in the markets of Cali and Palmira (Valle del Cauca, Colombia), for the period from Feb. 1977 to Dec. 1989. This data base is the foundation for further marketing studies with common beans. (AS-CIAT)
Statistical data are given on cassava, rice, common beans, corn, cotton and sugar cane production in Brazil from 1969-70. A total of 2,029,373 ha were planted to cassava, yielding 30,073,943 tons. Data are broken down for 8 states. (CIAT)
In order to measure the effects of new agricultural technologies on labour productivity in sub-Saharan Africa, on-farm trials are usually conducted using small plots. Farmers who keep no records have to be interviewed frequently to minimize the effect of memory loss on the accuracy of the data co...
In developing countries village poultry keeping is regarded an important livelihood opportunity for the poor. To improve poultry systems, it is necessary to keep in mind a large number of local complexities. This study aimed to integrate participatory-, survey- and model-based approaches to socio...
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