Energy and economic implications of agricultural technologies: an approach based on the technical options for the operations of crop production.

ILO pub-WEP pub. Working paper on the energy and economic implications of the choice of technology for agricultural technology, based on an analysis of rice production - develops a mathematical model with which comparisons of crop yields, power consumption, labour demand, fixed capital costs, etc. Are made; compares traditional cultivation techniques, the use of high yielding seeds, the application of fertilizers, insecticides and herbicides, and three levels of agricultural mechanization. Bibliography, graphs, statistical tables.