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Validación de tecnología en control de malezas para pequeños agricultores: análisis de eficiencia económica relativa
(CATIE, Turrialba (Costa Rica), 1983)
Fertilización potásica de papa (Solanum tuberosum L.) en cultivo bajo riego
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-01)
The objective of this research was to study the effect of potassium fertilization on potato.
During October 1979 — March 1980 measurements of yield, tuber quality and starch content were made in a field experiment on ...
Determinación del potencial agroclimático para la producción de caña de azúcar (Saccharum officinarum L.) en Costa Rica
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-01)
The agroclimatic potential of sugar cane is defined by estimating a production function for dry matter, performing a rainfall frequential analysis, and calculating a climatic ripening index. This requires the use of data ...
Evaluación al sacrificio en cabritos provenientes de los sistemas de crianza intensivo y extensivo
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-04)
In order to evaluate carcass yield of goats, two groups of kids from 8 to 9 months old were slaughtered and weighed. Fifteen animals had been raised with an intensive feeding system using sugar cane pods supplemented with ...
Trampa para determinar la densidad poblacional de la babosa, Vaginulus plebeius, plaga de frijol común
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-04)
Pit fall traps baited with a mixture of bran, molasses, beer and carbaryl are accurate indicators of the population density of active slugs, Vaginulus plebeius. For each active slug encountered in direct nighttime counts, ...
Adaptación de una técnica de inmunosorbencia (ELISA) a la detección del virus del rayado fino del maíz en su insecto vector
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-04)
An enzyme-linked immunosorbent assay (EWA ) was adapted for the detection of maize rayado lino vims (REV) in its insect vector Dalbulus midis. Optimization of experimental conditions for the assay included the use of ...
Susceptibilidad de Solanum elaeagnifolium Cav. a la acción de dos herbicidas
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-04)
Two herbicides, glifosate and MCPA picloram, were sprayed at different doses throughout the year's growth cycle of SoIntim theagnifolium. Greatest susceptibility of the plants was registered when chemicals were applied on ...
Rendimiento de pasto llorón, Eragrostis curvula (Nees) cv. Ermelo, en función de algunas propiedades edáficas
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-04)
The relationship between the yield of weeping lovegrass and some edaphic properties of 18 soils in a large area which includes the districts of Bahia Blanca, Villarino, Than and Saavedra in the province of Buenos Aires and ...
Influencia de algunos factores meteorológicos en el consumo de agua por transpiración de Nothofagus obliqua (Mirb) Oerst, y Nothofagus dombeyi (Mirb) Oerst
(Instituto Interamericano de Cooperación para la Agricultura (IICA), 1983-04)
The daily and seasonal variations of water consumption by transpiration and the influence of meteorological parameters on the transpiration intensity were studied in two species of the Fagaceas, Nothofagus obliqua and ...