Composteo de la Broza del Café por la Lombriz de Tierra Eisenia fetida
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Fecha
1997
Autores
Camacho Ramírez, Lilliam Mireya
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Editor
Universidad Nacional (Costa Rica)
Resumen
En el presente trabajo se evaluó el composteo de la broza del café con distintas densidades de Eisenia fetida. La broza de café recién despulpada se dejó estabilizar durante 5 semanas al aire libre en un lugar sombreado. En este periodo se midió la variación en la temperatura, el pH y la pérdida de volumen, además se observaron los cambios en el color, olor y apariencia del material. Transcurridas las 5 semanas de estabilización, la broza fue colocada en cajas plásticas de 2 litros de capacidad cada una, donde se colocó Eisenia fetida estableciéndose 4 tratamientos con 5 repeticiones cada uno. El primero sin lombrices y a los restantes se les colocaron 5, 15 y 25 lombrices según el caso, proporción que se mantuvo hasta el final del experimento.
Las cajas con lombrices de dejaron compostear durante 12 semanas, periodo en que finalizó el experimento. Cada 2 semanas, se determinó el número y el peso de las lombrices (juveniles y cliteladas) y capullos producidos. Se hicieron análisis químicos de la broza recién despulpada, cuando se colocaron las lombrices al final del periodo de composteo (12 semanas) en muestras compuestas por tratamiento. Se comprobó que la broza del café es apropiada para el cultivo de E. fetida ya que su sobrevivencia se acerca al 100%. El peso individual de las lombrices es mayor a menor densidad de individuos, así mismo esta influye en la producción de manera que la producción de capullos por individuo es menor a mayores densidades, en los tratamientos estudiados. El análisis químico del compost de la broza del café nos indica que este material presenta de una moderada a alta reserva de nutrientes disponibles totales e intercambiables, lo que lo hace apropiado para ser usado.
In the present work, the composting of coffee brush with different densities of Eisenia fetida was evaluated. The freshly pulped coffee chaff was allowed to stabilize for 5 weeks in the open air in a shady place. In this period, the variation in temperature, pH and volume loss were measured, in addition, changes in the color, odor and appearance of the material were observed. After 5 weeks of stabilization, the brush was placed in plastic boxes of 2 liters capacity each, where Eisenia fetida was placed, establishing 4 treatments with 5 repetitions each. The first without worms and the remaining 5, 15 and 25 worms were placed according to the case, a proportion that was maintained until the end of the experiment. The boxes with worms were left to compost for 12 weeks, the period in which the experiment ended. Every 2 weeks, the number and weight of the worms (juveniles and cliteladas) and cocoons produced were determined. Chemical analyzes were made of the freshly pulped chaff, when the worms were placed at the end of the composting period (12 weeks) in samples composed by treatment. It was found that the coffee brush is appropriate for the cultivation of E. fetida since its survival is close to 100%. The individual weight of the worms is higher the lower the density of individuals, likewise this influences the production in such a way that the production of cocoons per individual is lower at higher densities, in the treatments studied. The chemical analysis of the compost from the coffee chaff indicates that this material has a moderate to high reserve of total and interchangeable nutrients available, which makes it suitable for use.
In the present work, the composting of coffee brush with different densities of Eisenia fetida was evaluated. The freshly pulped coffee chaff was allowed to stabilize for 5 weeks in the open air in a shady place. In this period, the variation in temperature, pH and volume loss were measured, in addition, changes in the color, odor and appearance of the material were observed. After 5 weeks of stabilization, the brush was placed in plastic boxes of 2 liters capacity each, where Eisenia fetida was placed, establishing 4 treatments with 5 repetitions each. The first without worms and the remaining 5, 15 and 25 worms were placed according to the case, a proportion that was maintained until the end of the experiment. The boxes with worms were left to compost for 12 weeks, the period in which the experiment ended. Every 2 weeks, the number and weight of the worms (juveniles and cliteladas) and cocoons produced were determined. Chemical analyzes were made of the freshly pulped chaff, when the worms were placed at the end of the composting period (12 weeks) in samples composed by treatment. It was found that the coffee brush is appropriate for the cultivation of E. fetida since its survival is close to 100%. The individual weight of the worms is higher the lower the density of individuals, likewise this influences the production in such a way that the production of cocoons per individual is lower at higher densities, in the treatments studied. The chemical analysis of the compost from the coffee chaff indicates that this material has a moderate to high reserve of total and interchangeable nutrients available, which makes it suitable for use.
Descripción
Camacho Ramírez, L. (1997). Composteo de la Broza del Café por la Lombriz de Tierra Eisenia fetida. [Tesis de Licenciatura]. Universidad Nacional, Costa Rica.
Palabras clave
AGRICULTURAL RESIDUALS, COFFEE, FERTILIZERS, EARTHWORM, COMPOST, EISENIA FETIDA, RESIDUOS AGRÍCOLAS, CAFÉ - FERTILIZANTES, LOMBRIZ DE TIERRA