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Molecular characterization using rep-PCR of native isolates of Bacillus thuringiensis, obtained from soil samples
Caracterización molecular mediante rep-PCR de aislados nativos de Bacillus thuringiensis, obtenidos de muestras de suelo
(2014-07-04)
Bacillus thuringiensis is a Gram-positive bacteria forming spores, which produces parasporal crystals of a proteic nature, toxic against various orders of insects and biodegradable and harmless to other species. This ...
Mites associated with the avocado crop (Persea americana Mill) in the Central Coast of Peru
Ácaros asociados al cultivo del aguacate (Persea americana Mill) en la Costa Central de Perú
(2014-07-04)
Hass is an avocado cultivar grown in the central coastal region of Peru (Lima and Ica), with increasing economic importance, mainly to satisfy the high standards of foreign markets. This study (2010 to 2012, Central Coast), ...
Effect of sulpomag and organic complexs as partial substitutes of the culture medium used in the micropropagation of Musa sp. Cv. Cavendish
Efecto del sulpomag y complejos orgánicos como sustitutos parciales del medio de cultivo de micropropagación de Musa sp. Cv. Cavendish
(2014-07-04)
The Sulpomag natural fertilizer, or potassium sulfate and magnesium, constituted by K 2 O 22%, MgO 22%, S 18% and Cl (chloride) 2.5% plus organic complexes of coconut water 10 to 20%, and casein hydrolyzate 250 and 500 ...
Effectiveness of formic acid and thymol in the control of Varroa destructor in africanized honey bee colonies
Efectividad del ácido fórmico y el timol en el control del ácaro Varroa destructor en colmenas de abejas africanizadas
(2014-07-04)
The effectiveness of formic acid and thymol in the control of the mite Varroa destructor was evaluated from June to October 2011 in an apiary of 16 Africanized honeybee colonies (the colonies did not receive chemical ...
Phosphorous balance on Costa Rican dairy farms
Balance de fósforo en fincas para la producción de leche en siete cantones de la región Huetar Norte y egión Central de Costa Rica
(2014-07-04)
The objective was to quantify P use in 11 dairy farms located in the provinces of San Jose, Cartago and Alajuela. Data such as feed purchases, milk sales, purchase and removal of animals between January and December 2010 ...
Clay minerals identified in soils of Costa Rica from 1931 to 2014: I. History, methods of analyses, and mayor clay types found in volcanic ash derived soils
Arcillas identificadas en suelos de Costa Rica a nivel generalizado durante el período 1931-2014: I. historia, metodología de análisis y mineralogía de arcillas en suelos derivados de cenizas volcánicas
(2014-07-04)
Findings in a total of 84 research papers identifying clay minerals on 520 soil samples of Costa Rica are summarized. This review emphasizes on the clay minerals described in the topsoil samples, although clay minerals in ...
Clay minerals identified in soils of Costa Rica from 1931 to 2014: II. Major clay types described in soils with vertic, and oxidic-kaolinic properties
Arcillas identificadas en suelos de Costa Rica a nivel generalizado durante el período 1931-2014: II. mineralogía de arcillas en suelos con características vérticas y oxídico caoliníticas
(2014-07-04)
This paper summarizes available information on soil clay mineralogy in topsoils of Costa Rica, including clay minerals described in B horizons when significantly different from predominant mineralogy in the topsoil. The ...
Agronomic and nutritional evaluation of african star grass-based pastures (Cynodon nlemfuensis) in the region of Monteverde, Puntarenas, Costa Rica. II. Nutritional Value
Evaluación agronómica y nutricional del pasto estrella africana (Cynodon nlemfuensis) en la zona de Monteverde, Puntarenas, Costa Rica. II. Valor nutricional
(2014-07-04)
The nutritional value of african star grass (Cynodon nlemfuensis)-based pastures was analyzed in 4 commercial dairy farms in the Monteverde region (latitude 10°20’, longitude 84°50’, 800 to 1200 masl), every other month ...
Root development in F1 coffe hybrids obtained by tissue culture
Estudio del desarrollo radical en almácigo de híbridos F1 de café obtenidos por cultivo de tejidos
(2014-07-04)
F1 Hybrid seedlings, obtained by indirect somatic embryogenesis, were acclimatizated under greenhouse conditions, separated in 2 types of container: biodegradable mesh with compressed turf (Jiffy®) and the other on ...
Soil enzyme activity -Dehidrogenase, ß-glucosidase, Phosphatase and Urease- under different crops
Actividad enzimática del suelo -Deshidrogenasa, β-Glucosidasa, Fosfatasa y Ureasa- bajo diferentes cultivos
(2014-07-04)
The activity of 4 soil enzymes in farms under different agronomic managements and in different soil types was analyzed. The enzymes tested were phosphatase, β-glucosidase, dehydrogenase and urease. Soil samples were taken ...