El biol es un biofertilizante de alto contenido nutricional, obtenido por un proceso de fermentación anaeróbica de restos orgánicos de animales y vegetales realizado en un biodigestor, que promueve el crecimiento en la zona trifogénica de las plantas. La investigación planteó el objetivo de evaluar el efecto del biol en el rendimiento del cultivo de papa variedad canchan. Se instaló bajo el Diseño BCA con cuatro tratamientos y cuatro bloques. Los tratamientos en estudio fueron las dosis de biol: T1: 5%, T2: 10%, T3: 15% y T4: testigo (0%). Las variables evaluadas fueron altura de planta (40, 60 y 60 días), número y peso de tubérculos. El estudio reporta los siguientes resultados: El efecto del biol en la altura de planta a los 60 y 80 días después de la siembra, reporta que el tratamiento T2 y T3 obtuvieron los promedios más altos. En el número de tubérculos, los resultad...

Universidad Nacional Agraria La Molina. Facultad de Ciencias Forestales. Departamento Académico de Manejo Forestal

Objectives: To determine dermatomycoses epidemiological evolution in outpatients during the period 1976-2005. Design: Descriptive, retrospective, and analytical study. Setting: Daniel Alcides Carrion Institute of Tropical Medicine, Universidad Nacional Mayor de San Marcos, Lima, Peru. Participants: Patients positive to dermatomycoses. Interventions: Medical records of 7 185 (55.3%) dermatomycoses-positive patients were reviewed. Main outcome measures: Etiologic agent, season, gender, age, and clinical forms. Results: Females (52.1%) and the 16 to 30 year-old group (42.7%) were the most affected. Most frequent dermatomycoses was onychomycosis (43.6%). Most prevalent pathogens were Trichophyton rubrum (33.2%), Candida albicans (15.3%), Candida non albicans (11.8%), Trichophyton mentagrophytes (9.4%), Malassezia spp. (9.1%), and mixed infections (7.2%). The fungal scalp infection showed ste...

Objective: To identify Malassezia species in healthy skin seborrhea areas in Lima inhabitants. Design: Cross-sectional study. Setting: Daniel Alcides Carrion Tropical Medicine Institute, Universidad Nacional Mayor de San Marcos, Lima, Peru. Participants: Asymptomatic persons. Interventions: Skin samples were collected from 129 asymptomatic residents of several districts of Lima city using Mariat and Adan-Campos’ technique. Malassezia isolation was performed in modified Dixon medium and incubated at 32° C for 7 days. Colonies were identified by macro and micro morphological characteristics and typing was determined by biochemical and physiological properties using Guillot’s technique. Main outcome measures: Malassezia species, participants’ gender, age and anatomical region. Results: Malassezia spp was isolated in 43.4% of the residents, 49.2% in men and 37.5% in women. From variou...