Evaluación del efecto de abono orgánico a base de estiércol de ovino en el cultivo de dos híbridos de brócoli ( Brassica oleracea L.) en la Granja Experimental PUCE -SI
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Date
2023
Journal Title
Journal ISSN
Volume Title
Publisher
PUCE - Ibarra
Abstract
La dosis a ser aplicada a los suelos de enmiendas orgánicas para la mejora de la fertilidad del suelo con base en el uso de estiércol de ovino, en especial para el cultivo de las hortalizas permite orientar al uso adecuado de los recursos disponibles. La presente investigación estudió el comportamiento de las enmiendas orgánicas aplicadas en dosis alta a razón de 10 kg/m², dosis media de 8 kg/m² y dosis baja 6 kg/m²; complementando los elementos faltantes con un fertilizante mineral completo de relación 1N-1P2O5-1K2O (15-15-15) a razón de 20 g por m². La investigación se realizó bajo las condiciones agroecológicas de la granja experimental de la Pontificia Universidad Católica del Ecuador sede Ibarra. Se utilizaron dos materiales híbridos de Brócoli (Avenger y Zafiro). Para el desarrollo del ensayo se utilizó un diseño de bloques completos al azar (DBCA) en arreglo de parcelas divididas. Las variables evaluadas fueron: la altura de las plantas de brócoli a los 30, 60 y 90 días; el diámetro del tallo a los 30, 60 y 90 días, el diámetro de la pella; peso de la pella y rendimiento. En la determinación de los cambios el comportamiento morfofisiológico de la planta de brócoli se observó que la enmienda de abono orgánico de estiércol de ovina media (8 kg de estiércol) con el híbrido de brócoli Zafiro presentaron el mayor rendimiento de 0,54 kg/m² a condiciones de campo abierto con un beneficio costo por ha de 1,96. Aceptándose la hipótesis nula en donde los tratamientos son similares llegando a la conclusión que la enmiendas y la fertilización en base a un fórmula mineral de abono completo 15-15-15, NPK son iguales en los cambios morfológicos de la planta de brócoli para altura de planta, diámetro de pella y peso de pella.
The dose to be applied to the soils of organic amendments for the improvement of soil fertility based on the use of sheep manure, especially for the cultivation of vegetables, allows guiding the adequate use of available resources. The present investigation studied the behavior of organic amendments applied in a high dose at a rate of 10 kg/m², a medium dose of 8 kg/m² and a low dose of 6 kg/m²; Complementing the missing elements with a complete mineral fertilizer with a ratio of 1N-1P2O5-1K2O (15-15-15) at a rate of 20 g per m². The research was carried out under the agroecological conditions of the experimental farm of the Pontificia Universidad Católica del Ecuador, Ibarra campus. Two hybrid Broccoli materials (Avenger and Zafiro) were used. For the development of the trial, a randomized complete block design (DBCA) was used in a divided plot arrangement. The variables evaluated were: the height of the broccoli plants at 30, 60 and 90 days; the diameter of the stem at 30, 60 and 90 days, the diameter of the pellet; pellet weight and yield. In determining the changes in the morphophysiological behavior of the broccoli plant, it was observed that the amendment of organic fertilizer of medium sheep manure (8 kg of manure) with the hybrid of Zafiro broccoli presented the highest yield of 0.54 kg/m² under open field conditions with a benefit cost per ha of 1.96. Accepting the null hypothesis where the treatments are similar, reaching the conclusion that the amendments and fertilization based on a mineral formula of complete fertilizer 15-15- 15, NPK are the same in the morphological changes of the broccoli plant for height of plant, pellet diameter and pellet weight.
The dose to be applied to the soils of organic amendments for the improvement of soil fertility based on the use of sheep manure, especially for the cultivation of vegetables, allows guiding the adequate use of available resources. The present investigation studied the behavior of organic amendments applied in a high dose at a rate of 10 kg/m², a medium dose of 8 kg/m² and a low dose of 6 kg/m²; Complementing the missing elements with a complete mineral fertilizer with a ratio of 1N-1P2O5-1K2O (15-15-15) at a rate of 20 g per m². The research was carried out under the agroecological conditions of the experimental farm of the Pontificia Universidad Católica del Ecuador, Ibarra campus. Two hybrid Broccoli materials (Avenger and Zafiro) were used. For the development of the trial, a randomized complete block design (DBCA) was used in a divided plot arrangement. The variables evaluated were: the height of the broccoli plants at 30, 60 and 90 days; the diameter of the stem at 30, 60 and 90 days, the diameter of the pellet; pellet weight and yield. In determining the changes in the morphophysiological behavior of the broccoli plant, it was observed that the amendment of organic fertilizer of medium sheep manure (8 kg of manure) with the hybrid of Zafiro broccoli presented the highest yield of 0.54 kg/m² under open field conditions with a benefit cost per ha of 1.96. Accepting the null hypothesis where the treatments are similar, reaching the conclusion that the amendments and fertilization based on a mineral formula of complete fertilizer 15-15- 15, NPK are the same in the morphological changes of the broccoli plant for height of plant, pellet diameter and pellet weight.
Description
Keywords
Brócoli, Estiércol de ovino, Orgánica, Rendimiento