Evaluación de dos concentraciones de solución nutritiva en la fase vegetativa del cultivo de mortiño (Vaccinium floribundum, Kunth) en invernadero.

Abstract

This present research aimed to evaluate the effect of two concentrations of nutritional solution on the vegetative phase in the cultivation of mortiño (Vaccinium floribundum, Kunth) in greenhouse, so that a completely randomized design (CRD) with 24 observations per treatment was implemented. The experimental results were subjected to analysis of variance and separation of means with Tukey's test. The concentrations of nutritional solutions used were as follows: 50% concentration (0.75 nitrate, 0.63 phosphoric acid, 3.63 sodium sulfate, 1.16 potassium, 0.69 calcium, 0. 91 magnesium, 2.25 ammonium, 0.75 iron, 0.38 manganese, 0.09 zinc, 0.06 copper and 0.18 boron)/ meq L-1 and 100% ( 1.50 nitrate, 1.25 phosphoric acid, 7. 25 sodium sulfate, 2.31 potassium, 1.37 calcium, 1.82 magnesium, 4.50 ammonium, 1.50 iron, 0.76 manganese, 0.17 zinc, 0.11 copper and 0.35 boron)/ meq L-1. The following agronomic parameters were evaluated every 30 days: plant height, main stem diameter, number of basal stems, lodging percentage, plant height rate, stem diameter rate and vigor index. As outstanding results at 180 days after transplanting, an average height of 50.79 cm (T2), average main stem diameter of 1.02 cm (T2), number of basal stems of 1.54 (T2) and finally a vigor index of 53.63 (T1) were obtained. It is concluded that the plants with the best agronomic characteristics were obtained in Treatment 2, corresponding to the 100% concentration of nutritional solution for reaching the highest plant height, diameter, number of basal stems, plant height rate and stem diameter, so it is recommended the use of this alternative using the dose recommended above.