The evolution of the role of economists in agricultural research institutes (ARIs) over the past two decades is described. A framework for determining relevant research activities for economists in ARIs is presented, with ...

This study presents a methodology (in five steps) for assessing the impact of information and technologies generated by a crop management research (CMR) program. The methodology is demonstrated by estimating the return to ...

This study makes use of data on wheat production in the Punjab of Pakistan from 1979 to 1985 to 1) examine patterns of varietal diversity in farmers' fields both at the regional and district levels and 2) identify how and ...

This report of the adoption of maize production technologies in the Southern highlands of Tanzania forms part of a larger study to evaluate the impact of maize research and extension throughout Tanzania over the past 20 ...

The main farming systems of the Texizapan watershed in southern Veracruz, Mexico (200-1,640 meters above sea level) were characterized through a formal survey in 1995. Farm-level data included an inventory of resources ...

This study records the use of hybrid maize seed and fertilizer by small-scale farmers in Malawi, as well as their opinions about these inputs, from 1989-90 through 1996-97. Its main purpose is to determine whether the ...

The principal advantage of in situ conservation is that it allows adaptive evolutionary processes to continue in the species that are being conserved. For a cultivated crop species, in situ conservation involves farmers' ...

This study explores factors associated with farmers' decision to experiment with velvetbean (Mucuna spp.), a green manure, as a maize intercrop in three villages of Veracruz, Mexico. To asses whether velvetbean might be ...

Factors related to the low use of fertilizers and the resulting low agricultural productivity in sub-Saharan Africa are reviewed. The importance of inorganic fertilizers and agricultural research to improving soil fertility ...

This paper summarizes factors affecting the agricultural and environmental potential of conservation tillage in maize-based farming systems in Mexico. The author begins by describing some of the implications of soil ...