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Reseña de libros
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-01)
Turrialba; Vol. 30, no.1
(1980-01)
Turrialba Volumen 30, número 4
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-10)
Correlación entre los principales componentes del rendimiento y la calidad de fibra en tres variedades comerciales de algodón (Gossypium hirsutum L.)
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-07)
Commercial plots were planted ont in cotton (Gossypium hirsutum L) during the first half of 1978, varieties nsed included: Del Cerro, Acala 151770 and Stroman 254. A positive and significant correlation was found to exist ...
Variación estacional de la reductasa de nitrato en el cafeto
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-07)
The sesonal trends of nitrate reductase activily, of NO-3 induced activity of the same enzyme, and of the quotient between them, aRNi/aRNb, known as Nitrate Assimiletion Potential, were investigated. Assays were carried ...
Reseña de libros
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-07)
Evaluación del efecto de dosis crecientes de nitrato sobre la actividad de la reductasa del nitrato; nitrógeno derivado del fertilizante en cafeto
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-01)
Defficient Coffea arabica L. plants were treated with CaNO, (114%15N) in doses ranging from 25 to 200 kg/ha of N The effect of the treatments on the activity of nitrate reductase and on Nitrate Assimilation Potential was ...
Análisis del incremento de madera en plantaciones de Pinus caribaea var. hondurensis Barr et Golf en Turrialba, Costa Rica.
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-04)
The increment of Pinus caribaea var hondurensis between 9 and 12 years of age has been calculated for 10 sample plots of 0,1 ha each established within small plantations in the Valley of Turrialba, Costa Rica. The mean ...
Eficacia de varios insecticidas en el control del gusano blanco de la papa Premnotrypes vorax (Hust.) [Solanum tuberosum, Ecuador]
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-04)
The potato white tubberworm Premnotrypes vorax (Hust) is the mmost serious pest of potato crop in Ecuador. Since 1958 control has been achieved with Aldrin and Dieldrin incorporated to the soil before planting but its no ...
Desarrollo de sub-sistemas de alimentación de bovinos con rastrojo de frijol (Phaseolus vulgaris, L.). I. Disponibilidad, composición y consumo del rastrojo de frijol
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1980-01)
An experiment was effected to determine the production of common black bean residue under different cropping situations found in Central American small farms. Laboratory analyses were carried out to characterize the chemical ...