Ácidos húmicos de Leonardita en el crecimiento vegetativo de Ananas comosus L. var. Roja Trujillana en Poroto, La Libertad
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Date
2020
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Universidad Nacional de Trujillo
Abstract
En la localidad de Poroto, gran porcentaje del área cultivable es sembrada con piña año tras año, mereciendo especial énfasis la incorporación al suelo de materias orgánicas para asegurar la sostenibilidad del cultivo. El objetivo de esta investigación fue determinar el efecto de la leonardita en el desarrollo vegetativo de Ananas comosus L. var. Roja Trujillana en Poroto, La Libertad. Se empleó plantas de piña de la variedad Roja Trujillana en un campo experimental que fue instalado en el anexo de Casa Blanca, perteneciente al distrito de Poroto en un Typic Torrifluvent de textura moderadamente fina y relieve plano localizado en una terraza media de la naciente del abanico aluvial del río Moche. Se utilizó el diseño de bloques completos al azar con tres dosis de leonardita y cuatro repeticiones; los datos fueron sometidos a un análisis de variancia (ANVA) y a la prueba de Duncan (0.05) para determinar el efecto de los tratamientos. Se encontró que la dosis de 100 kg.ha-1 de leonardita incrementa a 19.6 unidades el número de hojas en plantas de piña respecto al testigo con 17.93 unidades y a la dosis de 50 kg/ha con 18.6 unidades. La aplicación de leonardita en dosis de 50 a 100 kg/ha incrementó el número de raíces por planta, de 14.9 a 19.65 unidades e incrementó la longitud total de raíces por planta, de 154.8 cm a 201.2 cm respecto al testigo. La aplicación de leonardita en dosis de 50 a 100 kg/ha incrementó la longitud promedio de raíz por planta de 8.98 cm a 10.57 cm respecto al control. La dosis de leonardita de 100 kg/ha incrementó el peso fresco de planta a 561.19 g respecto al control (469.9 g) y a la dosis baja de leonardita de 50kg/ha (493.13 g). La dosis de Leonardita de 100 kg.ha-1 determina una mayor acumulación de peso fresco radicular (295 g) y peso seco aéreo (54.83 g) por planta en relación al tratamiento testigo. En consecuencia, se demostró que el empleo de leonardita como fuente de materia orgánica en el cultivo de piña Roja Trujillana puede contribuir a reducir el deterioro de los cultivos de piña observados en la localidad de Poroto debido a su efecto positivo sobre algunas variables de desarrollo de los cultivos.
ABSTRACT At Poroto's locality, there are high percentage of the cultivable area sown with pineapple year after year, and an especial emphasis merits the incorporation of organic matters at these grounds to insure the sostenibility of this cultivation. The object of this investigation was to determine the effect of leonardita in Ananas's comosus L var. Roja Trujillana vegetative development in Poroto, La Libertad. The experimental field were planted with pineapple plants of the red variety in Poroto's district in a Typic Torrifluvent of moderately fine texture and flat relief located at a half a terrace of the nascent one belonging to the alluvial fan of the river was installed in the attachment of Casablanca, Moche. Were used three dosis of leonardita and four repetitions utilized Ramdon Blocks Design; data were submitted to an analysis of variance (ANVA) and to Duncan's proof (0,05) to determine the effect of the treatments. We found that, leonardita's dose 100 kg/ha the number of sheets in plants of pineapple in relation to the witness with 17,93 units increments 19,6 units and to 50 kg/ha's dose with 18,6 units. leonardita's application in dose of 50 to 100 kg/ha incremented the number of roots for plant, of 14,9 to 19,65 units in relation to the witness. leonardita's application in dose of 50 to 100 kg/ha incremented the overall length of roots for plant, of 154,8 cm to 201,2 cm in relation to the witness. leonardita's application in dose of 50 to 100 kg/ha incremented the average length of root for plant of 8,98 cm to 10,57 cm in relation to control. leonardita's dose of 100 kg/ha incremented the fresh weight of to 561,19 g in relation to control ( 469,9 g ) and to leonardita's reduce dose of 50kg/ha 50kg/ha ( 493,13 g ). In consequence leonardita's job like source of organic matter in the cultivation of pineapple Roja Trujillana can contribute to reducing the deterioration of the grounds and the cultivations of pineapple observed at Poroto's locality due to her effect on the properties of the agricultural grounds and the development of cultivations.
ABSTRACT At Poroto's locality, there are high percentage of the cultivable area sown with pineapple year after year, and an especial emphasis merits the incorporation of organic matters at these grounds to insure the sostenibility of this cultivation. The object of this investigation was to determine the effect of leonardita in Ananas's comosus L var. Roja Trujillana vegetative development in Poroto, La Libertad. The experimental field were planted with pineapple plants of the red variety in Poroto's district in a Typic Torrifluvent of moderately fine texture and flat relief located at a half a terrace of the nascent one belonging to the alluvial fan of the river was installed in the attachment of Casablanca, Moche. Were used three dosis of leonardita and four repetitions utilized Ramdon Blocks Design; data were submitted to an analysis of variance (ANVA) and to Duncan's proof (0,05) to determine the effect of the treatments. We found that, leonardita's dose 100 kg/ha the number of sheets in plants of pineapple in relation to the witness with 17,93 units increments 19,6 units and to 50 kg/ha's dose with 18,6 units. leonardita's application in dose of 50 to 100 kg/ha incremented the number of roots for plant, of 14,9 to 19,65 units in relation to the witness. leonardita's application in dose of 50 to 100 kg/ha incremented the overall length of roots for plant, of 154,8 cm to 201,2 cm in relation to the witness. leonardita's application in dose of 50 to 100 kg/ha incremented the average length of root for plant of 8,98 cm to 10,57 cm in relation to control. leonardita's dose of 100 kg/ha incremented the fresh weight of to 561,19 g in relation to control ( 469,9 g ) and to leonardita's reduce dose of 50kg/ha 50kg/ha ( 493,13 g ). In consequence leonardita's job like source of organic matter in the cultivation of pineapple Roja Trujillana can contribute to reducing the deterioration of the grounds and the cultivations of pineapple observed at Poroto's locality due to her effect on the properties of the agricultural grounds and the development of cultivations.
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Keywords
Piña, Ácidos húmicos