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The reasons an integrated pest and disease control in cassava is justified are analyzed. Some cultural practices are listed that would lessen the problems caused by negative production factors within an ecosystem and would give high stable yields. Recommendations are given to maintain and enrich ...
A report is presented on N fertilization and fixation in bean crops. The selection of N sources, the time of application and the amount applied guarantees a higher utilization of N by the plant. When the total amount of N required is applied prior to planting, the plant only uses 26 percent of th...
Results of a study on bean cultivation in El Salvador are given. Aspects analyzed were as follows: consumption structure (apparent, per capita, and rural-urban; preferences, consumption and cooking ways, and nutritive value); area, production, and yields (at national and regional levels, by cropp...
The main objectives of this expt. were to study the optimum dosage of the preemergence herbicide, oxyfluorfen, on different soil types by evaluating the chemical injury on cassava leaves; investigate the relationship between the diameter of the cutting and the initial growth; analyze aspects of m...
The present situation of cassava cultivation in Caicedonia (Colombia) is studied after 8 yr cooperation between the Nat. Federation of Coffee Growers and CIAT. From an iitial 60 ha and 8 farmers in 1971, the project had developed more than 1300 ha (90 farmers) by the end of 1978. Yields have decl...
Observations and recommendations on the use of the herbicide oxyfluorfen are included on the basis of research conducted at the Centro Internacional de Agricultura Tropical (CIAT) on its efficiency in selective weed control in cassava, effect on yield, rates of application, and possible combinati...
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