IRRIGAÇÃO DE PIMENTA DEDO-DE-MOÇA AMARELA SOB CONCENTRAÇÕES DE EFLUENTE DOMÉSTICO TRATADO

Abstract

The treated sewage effluent shows itself as an alternative to irrigation, especially during the dry season in the Brazilian savannah. In this sense, the objective of this study was to evaluate the development and productivity characteristics of yellow pepper (Capsicum baccatum) cultivated in protected environment and submitted to concentrations of treated domestic effluent, applied via surface drip irrigation. The experiment was carried out in the experimental area of the Goiano Federal Institute - Campus Ceres, from April to December 2016. A randomized complete block design was used. The treatments consisted of five concentrations of treated domestic sewage (T1: 100% fluvial water; T2: 75% fluvial water + 25% treated domestic effluent; T3: 50% fluvial water + 50% treated domestic effluent; T4: 25% fluvial water + 75% treated domestic effluent and T5: 100% treated domestic effluent) and four replicates. Development and productivity characteristics data were submitted to analysis of variance (Test F), at a level of 5% significance and in the characteristics that presented significance, regression. The differentiation of the treatments did not provide significant statistical differences, at the pre-established level, for the developmental traits evaluated. Among the productive characteristics, productivity (PROD) and fruit length (CF) differed statistically at a 5% probability level. Microbiological analysis did not detect contamination both for fruit spares and for seeds. In the analysis of water and residual in the soil there was statistical difference between the concentration of zinc. The increase in the concentration of treated domestic sewage caused a drop in productivity..