Turrialba
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Tratamiento con cinina para retardar la clorosis en estacas de cacao empacadas para el transporte
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-10)Treating freshly harvested cacao cuttings with 10 ppm N6-benzyladenine delayed leaf chlorosis and necrosis when the cuttings were packed for shipment and kept at room temperature. Ninety percent of the treated cuttings ... -
Postes vivos para cercos
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-07-01)Three species, Erythrina poeppigiana, Gliricidia sepium and Erythrina costaricensis were used in an experiment on rooting of live fence posts at Turrialba, Costa Rica. Two planting dates, two diameter classes, and the ... -
Factores que afectan la germinación del cacao
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-10)Cold killed (3 grades centigrades) cacao seeds were soaked in metabolites such as vitamins, amino acids, nucleic acid derivatives, etc., to see if the damage could be overcome, but no treatment was successful. Hypocotyl ... -
Pruebas de abonamiento con N, P y K para elevar la producción de café en la Meseta Central de Costa Rica
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-07-01)In seven localities on the central plateau of Costa Rica, uniform trials of three levels of N, P and K were made on coffee plantations. Results were variable. The increase of yields was more pronounced with N and K in ... -
El uso de humectantes en nutrición foliar
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-10)En la práctica los problemas de la nutrición foliar deben tratarse en forma empírica porque hay aún poco conocimiento básico sobre este proceso. Se sabe que hay factores que afectan la absorción, tales como la luz, el pH, ... -
Evaluación de una mezcla reemplazadora de la leche con y sin aurofac
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-07-01)Twenty fom seven-day-old Jersey bull calves sived by the same bull were divided into six groups. Three groups received Mix I composed 65% powdered skim milk, 14% blood meal, 14% corn meal, 4% sesame meal and 3% of a ... -
Digestibilidad de una mezcla de kudzu (Pueraria phaseoloides) y pasto Honduras (Ixophorus unisetus (Presl) Schlecht)
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-10)Four purebred Brown Swiss heifers averaging 453 Kg. in weight were fed a mixture consisting of approximately 40% Tropical Kudzu (Pueraria phaseoloides) and 60% Honduras grass (Ixophorus unisetus (Presl) Schlecht). Consumption ... -
La "Rayadilla" del plátano en Colombia
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-07-01)Rayadilla is a disease of the plantain (Musa paradisiaca L) which is of cour mon occurrence in the Cauca Rives valley, Colombia (average altitude of 1.000 meters). The symptomatology of "rayadilla is similar to that ... -
Notas y Comentarios
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-07-01)En esta sección se publican notas de interés técnico sobre conferencias internacionales programas de investigación, extensión y educación, nombramiento de personal directivo, organización de nuevas instituciones, distinciones ... -
Especies arbóreas más comunes de las zonas ganaderas de la Provincia de Tucumán que sirven de alimento al ganado
(Instituto Interamericano de Ciencias Agrícolas (IICA), 1962-10)The author discusses the importance of arboreal vegetation as a source of forage in the various cattle producing zones of the province of Tucumán, in northern Argentina and gives the results of observations concerning the ...
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