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Efecto de la sensibilidas de Mycosphaerella fijiensis sobre la eficacia biologica de fungicidas sistémicos utilizandos contra la sigatoka negra
(Instituto Tecnológico de Costa Rica, 2015)
A two-phase study was carried out to first assess the degree of in vitro loss of sensivity of 11 systemic fungicides use to combat Black Sigatoka, a second phase followed to assess how this diminished effectiveness affect ...
Evaluación agronómica de cinco variedades de lechuga (Lactuca sativa L.) en tres ciclos de siembra consecutivos en San Miguel de la Tigra, San Carlos, Alajuela, C. R.
(Instituto Tecnológico de Costa Rica, 2015)
Due to that the area of San Carlos is highly touristic and therefore demandant of horticultural products, among them the lettuce. In the absence of knowledge about varieties that will produce in open field under the ...
Determinación de la huella de carbono y utilización de energía solar en unidades productoras de leche como alternativa al cambio climático en la Región Huetar Norte de Costa Rica
(Instituto Tecnológico de Costa Rica, 2015)
The producers of cattle industry has an important challenge of establishing sustainable production systems friendly to the environment, for this is fundamental to know the real level of emission of the greenhouses gases ...
Comportamiento agronómico de Capsicum annuum L., Lycopersicon esculentum M. y Cucumis melo L. bajo cultivo protegido hidropónico utilizando la solución universal de Steiner
(Instituto Tecnológico de Costa Rica, 2015)
Three horticultural crops were grown under greenhouse and hydroponic conditions using Steiner‟s Universal Nutrient Solution (1984) in the humid tropic San Carlos area, Costa Rica, on November 2013 and May 2014. Using the ...
Estudio de la etiología de la necrosis foliar (Chasparria) en Cycas revoluta Thunb y evaluación de estrategias para el manejo de la enfermedad
(Instituto Tecnológico de Costa Rica, 2015)
The following investigation was conducted with the objective of developing strategies to manage the foliar necrosis of cycas with plan knowledge and the study of the etiology of the disease. The investigation was divided ...
Determinación de la eficacia del ácido giberélico (Progibb 40wg)sobre el rendimiento y la calidad de la caña de azúcar (Saccharum spp.) var. NA 56-42 en Liberia, Guanacaste, Costa Rica
(Instituto Tecnológico de Costa Rica, 2015)
Research was conducted at the Central Azucarera Tempisque S.A (CATSA) in Guardia Liberia, Costa Rica, in order to evaluate the effectiveness of gibberellic acid on improving the quality and yield of cultivation of sugarcane ...
Evaluación bioeconómica de la suplementación con pellets de stylosanthes quianensis sobre la producción y constituyentes de la leche en vacas en pastoreo en la Zona Norte de Costa Rica
(Instituto Tecnológico de Costa Rica, 2015)
This work evaluate the effect of supplementation with two concentrated pellets of
Stylosanthes guianensis (Legumix Premium and Supplement Alpha) versus two
commercial concentrates (Vap-Feed and Predilecta) over the milk ...
Metodologías de diagnóstico temprano de la enfermedad "Cuero de sapo" en yuca (Manihot esculenta Crantz)
(Instituto Tecnológico de Costa Rica, 2015)
This study was aimed at evaluating two methods of diagnosing the cassava "frogskin" disease (CFSD) in cassava stakes. This was achieved by evaluating: (1) the presence of phytoplasma-like structures using fluorescent ...
Análisis del sistema producción de leche de la finca "La Luna" en el cantón de San Carlo
(Instituto Tecnológico de Costa Rica, 2015)
The study consisted the development of a general diagnosis of the Dairy farm “La Luna”, located in the village of Altamirita, district of Aguas Zarcas, canton San Carlos, province Alajuela.
The research had as purpose to ...