MORFOMETRIA, PIGMENTOS E PRODUÇÃO DE RÚCULA FERTIRRIGADA COM EFLUENTE AQUAPÔNICO

Abstract

Fertirrigation is a practice that consists of irrigation in the form of a mixture with the various fertilizers, fungicides, herbicides and other compounds needed for a particular agricultural crop, becoming an alternative for the use of wastewater from animal husbandry, as a way to minimize the amount of effluent and its improper disposal. The objective of this work was to evaluate the growth, development and yield components of arugula cultivated under fertigation of wastewater from an aquaponic system. The experiment was conducted in plastic pots, placed in the greenhouse, in the experimental area of the Instituto Federal Goiano - Campus Rio Verde - GO. The soil used was classified as Red Latosol distrocerric, Cerrado phase, clayey texture. The experimental design used was entirely randomized, analyzed in a 2 x 2 x 3 factorial arrangement, with three repetitions. The factors consisted of arugula varieties (v1 = cultivated arugula and v2 = cultivated arugula giant broadleaf); filter volume in relation to the tank (V1= 50 L and V2= 70 L); and stocking density (D1=30, D2=60 and D3=90 fish per tank); totaling 36 plots. In general, the Cultivated variety at a stocking density of 60 fish and a filter volume of 75 L provided the best results. On the other hand, the variety Cultivated giant broadleaf at a density of 20 fish and a filter volume of 50 L was the one that obtained inferior results for the arugula yield components.