Evaluación de cuatro mezclas de sustratos para la producción semihidropónica de fresa (Fragaria x ananassa D.) variedad albión en invernadero.

Abstract

This research aimed to evaluate the effect of four substrate mixtures for the semi-hydroponic production of strawberry (Fragaria x ananassa D.) Var. Albion in greenhouses. A completely randomized design (CRD) with 4 treatments and 3 replications plus the control was used. The treatments were: T1 (50 % rice Husk; 35 % Pine bark; 15 % Biofertil), T2 (50 % Pomina; 35 % Pine bark; 15 % Biofertil), T3 (50 % rice Husk; 30 % Pine bark; 20 % Biofertil), T4 (50 % Pomina; 30 % Pine bark; 20 % Biofertil) and the control (Sustrafresa). Biometric data of the plants were recorded (percentage of graffting, plant and flower vigor, days to stolonization and days to flowering). On the other hand, yield was evaluated in kg.ha-1, and the fruit was subsequently categorized, and electrical conductivity was recorded before and after fertigation. Finally, the economic analysis was carried out using the Benefit-Cost ratio. Based on the proposed statistical analysis, the normality of the data was checked prior to the analysis of variance or non-parametric tests, and the TUKEY test at 5% was used for the separation of means. The results showed that the substrates with pomina had the most vigorous flowers and plants. The treatments based on rice husk were earlier for flowering and fruiting, but had the lowest yields compared to the pomina treatments, which exceeded 14,795 kg.ha-1, and it had the highest production of first and second category fruit. It is concluded that the best substrate for semi-hydroponic strawberry production under greenhouse is the one with pomina in its composition.