Evaluación de dos fertilizantes en semihidroponía en dos variedades de fresa (fragaria x ananassa d.), bajo cubierta.

Abstract

The aim of this research was to evaluate two fertilizers in semi-hydroponics on two varieties of strawberry (Fragaria x ananassa D.), under cover. A bifactorial, split-plot, randomized complete block design (RCBD) with four replications was used. The treatments were: T1 (Hakaphos; Albion), T2 (Hakaphos; Monterrey), T3 (Haifa; Albion) and T4 (Haifa; Monterrey). The percent stand, EC after fertigation, days to first flower, vigor, fruit firmness, days to fruit set, and soluble solids were recorded. In addition, yields were determined in grams per plant, kilograms per hectare and per category. Finally, the economic analysis was determined considering only production and operating costs, through the Benefit-Cost ratio. The best yield was with the Hakaphos fertilizer and the Monterrey variety with 115.34 g. plant-1 and 121.75 g. plant-1, respectively. In terms of agronomic performance, the best treatment was with the Hakaphos fertilizer and the Albion variety, in days to first flower with 151 days and 150.88 days, respectively, in addition, it presented excellent dark green vigor and obtained the minimum electrical EC after fertigation of 489.25 µS.m-1. Finally, the best benefit-cost was obtained with the Hakaphos fertilizer and the Monterrey variety of 1.37. It is concluded that the best fertilizer for fertigation in semi-hydroponics under greenhouse was the Hakaphos fertilizer with the Monterrey variety since it obtained the highest yield and the best Benefit-Cost ratio.