Fertilización con guano de Isla y frecuencia de cosecha en cultivares de Acelga (Beta vulgaris L. var cicla)
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Autores
Salazar Zuñiga, Rocio Nieves
Resumen
El guano de isla se presenta como una alternativa nutricional viable para la producción orgánica de acelga, permitiendo obtener biomasa de calidad según la frecuencia de cosecha adecuada. El objetivo del presente estudio es evaluar el efecto de la fertilización con guano de isla y la frecuencia de cosecha en el rendimiento y calidad de dos cultivares de acelga en producción orgánica. Se empleó un diseño de parcela dividida con arreglo factorial y mediciones repetidas en el tiempo. En las parcelas principales se aplicaron dos dosis de guano (0 y 1 t/ha) y en las subparcelas se asignaron los cultivares (Fordhook Giant y Prius) y las frecuencias de cosecha (7, 14 y 21 días), con tres bloques totalmente aleatorizado. Se evaluaron las variables morfofisiológicas (altura de planta, número, largo, ancho, área y materia seca de las hojas), de producción (rendimiento) y abióticas (pH y conductividad eléctrica del suelo). Las variables morfofisiológicas mostraron diferencias estadísticamente significativas, destacando el cultivar Fordhook Giant con la dosis de 1 t/ha en la mayoría de las variables. Se obtuvo diferencia estadísticamente significativa en la interacción de los factores sobre el logaritmo del peso de hojas cosechadas, reflejando los mayores rendimientos promedio con la dosis de 1 t/ha y frecuencias de cosecha de 14 y 21 días para ambos cultivares, siendo a los 14 días donde se obtuvieron hojas de mejor calidad comercial. En cuanto al suelo, el pH no mostró diferencias estadísticamente significativas, pero si la conductividad eléctrica que fue moderadamente mayor con la dosis de 1 tn/ha. En consecuencia, la fertilización con guano de isla a una dosis de 1 t/ha es la opción más efectiva para ambos cultivares bajo una frecuencia de cosecha de 14 días.
Island guano is presented as a viable nutritional alternative for the organic production of chard, allowing quality biomass to be obtained according to the appropriate harvesting frequency. The objective of the present study was to evaluate the effect of island guano fertilization and harvest frequency on the yield and quality of two chard cultivars in organic production. A split-plot design with factorial arrangement and repeated measurements over time was used. Two guano doses (0 and 1 t/ha) were applied in the main plots and cultivars (Fordhook Giant and Prius) and harvest frequencies (7, 14 and 21 days) were assigned in the subplots, with three completely randomized blocks. Morphophysiological (plant height, number, length, width, area and leaf dry matter), production (yield) and abiotic (soil pH and electrical conductivity) variables were evaluated. The morpho-physiological variables showed statistically significant differences, with the Fordhook Giant cultivar standing out with the 1 t/ha dose in most of the variables. A statistically significant difference was obtained in the interaction of the factors on the logarithm of the weight of leaves harvested, reflecting the highest average yields with the 1 t/ha dose and harvest frequencies of 14 and 21 days for both cultivars, being at 14 days where leaves of better commercial quality were obtained. As for the soil, pH did not show statistically significant differences, but electrical conductivity was moderately higher with the dose of 1 tn/ha. Consequently, fertilization with island guano at a dose of 1 t/ha is the most effective option for both cultivars under a harvest frequency of 14 days.
Island guano is presented as a viable nutritional alternative for the organic production of chard, allowing quality biomass to be obtained according to the appropriate harvesting frequency. The objective of the present study was to evaluate the effect of island guano fertilization and harvest frequency on the yield and quality of two chard cultivars in organic production. A split-plot design with factorial arrangement and repeated measurements over time was used. Two guano doses (0 and 1 t/ha) were applied in the main plots and cultivars (Fordhook Giant and Prius) and harvest frequencies (7, 14 and 21 days) were assigned in the subplots, with three completely randomized blocks. Morphophysiological (plant height, number, length, width, area and leaf dry matter), production (yield) and abiotic (soil pH and electrical conductivity) variables were evaluated. The morpho-physiological variables showed statistically significant differences, with the Fordhook Giant cultivar standing out with the 1 t/ha dose in most of the variables. A statistically significant difference was obtained in the interaction of the factors on the logarithm of the weight of leaves harvested, reflecting the highest average yields with the 1 t/ha dose and harvest frequencies of 14 and 21 days for both cultivars, being at 14 days where leaves of better commercial quality were obtained. As for the soil, pH did not show statistically significant differences, but electrical conductivity was moderately higher with the dose of 1 tn/ha. Consequently, fertilization with island guano at a dose of 1 t/ha is the most effective option for both cultivars under a harvest frequency of 14 days.
Descripción
Universidad Nacional Agraria La Molina. Facultad de Agronomía. Departamento
Académico de Horticultura
Palabras clave
Abonos NPK; Acelga; Enmiendas orgánicas; Estiércol; Evaluación; Fertilziación; Fuentes orgánicas; Beta vulgaris; Rendimiento de cultivos; Riego; Variedades
Citación
Fecha
2025
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Excepto si se señala otra cosa, la licencia del ítem se describe como info:eu-repo/semantics/openAccess