Evaluación de tres dosis de fertilizante quelatado en tres híbridos de tomate Lycopersicum esculentum Mill bajo condiciones protegidas
Fecha
2016
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Facultad de Ciencias Agrarias Universidad de Guayaquil
Resumen
La investigación se realizó en la época de verano del año 2015, en
ambiente protegido por un invernadero, de estructura de madera cubierta
completamente por malla en los laterales y rafia plastificada en la cubierta,
En la zona norte de la provincia del Guayas, ubicada en el km 3 de la vía
Balzar - El Empalme perimetral, en los terrenos de propiedad del Sr.
Cristóbal Antonio Arana Hernández.
En este ensayo se estudiaron tres híbridos de tomates, Pietro F51,
Fortuna y Dominique con tres dosis de fertilizante quelatado, 4 y 2 l/ha, y un
tercero (testigo) sin aplicación del fertilizante.
Para el experimento se trazaron los siguientes objetivos a)Estudiar el
comportamiento agronómico de tres genotipos de tomate en ambiente
protegido, b)Investigar la dosis óptima del fertilizante quelatado en la
producción de tomate con cubierta, c)Determinar el tratamiento con mejor
respuesta económica en las condiciones ensayadas.
Se utilizó el diseño de bloques completamente al azar con arreglo
factorial 3 x 3 con tres repeticiones. Para el análisis estadístico se aplicó la
técnica del análisis de varianza, cuando las diferencias en este fueron
significativas se realizó la comparación de medias de tratamientos mediante
la prueba de Tukey al 5% de probabilidad.
Los tratamientos con dosis de 2 y 4 l/ha de fertilizante quelatado,
mostraron el mayor promedio de altura de la planta. La variable número de
hojas, registró la mayor cantidad en el tratamiento 3. Los tratamientos 3, 5 y
6 presentaron los mayores promedios del diámetro del tallo. En el número de
flores y de frutos, fue superior el tratamiento 6, el tratamiento 3 también
sobresalió en el número de frutos. La variable diámetro del fruto muestra a
los tratamientos 6, 7, 8 y 9 con valores más elevados. Los híbridos Fortuna y
Dominique obtuvieron los mayores pesos de los frutos, al igual que la
aplicación de 2 l/ha de fertilizante quelatado. Los tratamientos 6, 3, 5 y 2,
The research was conducted in the summer of 2015 in a protected environment, in the north of the province of Guayas, located in the 3 km perimeter of Balzar route - El Empalme, on the farm owned by Mr. Christopher Antonio Hernandez Arana. In this test three hybrids of tomatoes, Pietro F51, Fortuna, Dominique studied with three doses of chelated fertilizer, 4 and 2 l/ha, and a third (witness) without application of fertilizer. For the experiment the following objectives were set a)Study the agronomic performance of three genotypes of tomato in protected environment, b) investigate the optimum dose of chelated fertilizer on tomato production decked c) Determine treatment with better economic response the conditions tested. Block design was completely randomized 3 x 3 factorial arrangements with three replications. For statistical analysis, technical analysis of variance was applied when differences were significant in this comparison of treatment means by Tukey test at 5% probability was performed. Treatments with doses of 2 and 4 l/ha of chelated fertilizer showed the highest average plant height. The variable number of sheets, recorded the most in the treatment 3. Treatments 3, 5 and 6 had the highest mean stem diameter. In the number of flowers and fruits it was higher treatment 6 treatment 3 also excelled in the number of fruits. The variable diameter of the fruit shows treatments 6, 7, 8 and 9 with higher values. The Fortuna and Dominique hybrids obtained the highest weight of the fruit, as the application of 2 l/ha of fertilizer chelated. Treatments 6, 3, 5 and 2, showed the highest agricultural yields in that order, all higher than 40 t / ha. The highest rate of marginal return, 6 shows treatment value of 179.5%.
The research was conducted in the summer of 2015 in a protected environment, in the north of the province of Guayas, located in the 3 km perimeter of Balzar route - El Empalme, on the farm owned by Mr. Christopher Antonio Hernandez Arana. In this test three hybrids of tomatoes, Pietro F51, Fortuna, Dominique studied with three doses of chelated fertilizer, 4 and 2 l/ha, and a third (witness) without application of fertilizer. For the experiment the following objectives were set a)Study the agronomic performance of three genotypes of tomato in protected environment, b) investigate the optimum dose of chelated fertilizer on tomato production decked c) Determine treatment with better economic response the conditions tested. Block design was completely randomized 3 x 3 factorial arrangements with three replications. For statistical analysis, technical analysis of variance was applied when differences were significant in this comparison of treatment means by Tukey test at 5% probability was performed. Treatments with doses of 2 and 4 l/ha of chelated fertilizer showed the highest average plant height. The variable number of sheets, recorded the most in the treatment 3. Treatments 3, 5 and 6 had the highest mean stem diameter. In the number of flowers and fruits it was higher treatment 6 treatment 3 also excelled in the number of fruits. The variable diameter of the fruit shows treatments 6, 7, 8 and 9 with higher values. The Fortuna and Dominique hybrids obtained the highest weight of the fruit, as the application of 2 l/ha of fertilizer chelated. Treatments 6, 3, 5 and 2, showed the highest agricultural yields in that order, all higher than 40 t / ha. The highest rate of marginal return, 6 shows treatment value of 179.5%.
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FERTIZANTE, QUELATOS, HIBRIDOS DE TOMATE