CULTIVO DE FEIJÃO IRRIGADO COM ÁGUA RESIDUÁRIA E ADUBADO COM MICRONUTRIENTES BEAN CROP IRRIGATED WITH WASTEWATER AND FERTILIZED WITH MICRONUTRIENTS

The bean is a demanding plant nutrients (macro and micro) due to their reduced root system and short cycle, demanding attention to nutritional matters aimed at productivity. The wastewater may be a form of environmental remediation, since this reuses for use in production. Thus, the objective was to produce beans (Phaseolus vulgaris L.) irrigated with wastewater and fertilized with different boron doses (added to Plantin II), the soil in three growth stages of development of the bean. The study was conducted between September and December/2014 in the Federal Institute Goiano Campus Urutai, Goias. The experimental design was completely randomized with doses: 0, 100, 200, 300 and 400 g ha -1 of boron (B) all treatments added to Plantin II (composed of 6% zinc, 0.05% molybdenum, 3% of boron, 1% magnesium, 0.5% iron, 1.5% calcium, 0.5% manganese, 3.5% sulfate, 0.5% copper and 10% nitrogen), with 3 replications, with each treatment vessel 1 with 1 plant each (total 15 plants and 15 pots). Micronutrients were applied in the soil. During the flowering leaf samples were collected to analyze the concentration of macro and micronutrients. After harvest were analyzed number of grains/pods (beans); number of pods/plant (pods); total dry matter; weight of 100 grains; root volume and productivity. The wastewater used was analyzed according to standards for reuse. Data from the study were submitted to analysis of variance by F test and mean comparison test (Tukey) at a significance level of 5%. There was no significant difference between the values of: grains, beans, dry matter and productivity, which signals that the applied doses did not effect on bean production, only difference was the weight of 100 grains. In foliar analysis, the increase in B doses applied in the soil increased the concentration of B in the leaves, and the N and P levels are within the critical levels of macro nutrients to the bean crop. The average production of dry beans was 1339.15 kg ha -1 . Water consumption in the study was of 215 liters of water for plant. It is possible to produce irrigated with wastewater and beans fertilized with micronutrients.