UTILIZAÇÃO DA ÁGUA RESIDUÁRIA TRATADA POR RADIAÇÃO SOLAR NA IRRIGAÇÃO DA CULTURA DE CEBOLINHA

Abstract

Since agriculture is the activity that consumes most water, there is a need to reuse water in this practice. The objective of this work was to evaluate the influence of the application of different percentages of wastewater treated by solar radiation (AR-TRS) on the chives 'every year' and to quantify E. coli in the culture. The experiment was conducted at the Department of Rural Engineering of FCA / UNESP, Botucatu-SP. The statistical design was randomized with five replicates and five treatments, 0, 25, 50, 75 and 100% of AR-TRS in the total irrigation depth, completing treatments with 100, 75, 50, 25 and 0% of supply water (AAF). The results demonstrate the influence of ARD-TRS in the parameters studied, plant height, number of stalks, diameter of the largest stem, number of tillers, diameter of the largest till, diameter of the clump, mean fresh and dry matter, except for E. coli, that no influence was verified, but observed a possible cross-contamination in a sample. Concluding, therefore, the use of ARD-TRS brings productive increases to the crop.