AVALIAÇÃO DE ATRIBUTOS QUÍMICOS DE SOLO SUBMETIDO À APLICAÇÃO DE ÁGUA RESIDUÁRIA DE ABATEDOURO DE AVES

Abstract

In recent years Brazil has been gaining attention in the production of chicken meat, appearing on the world stage as the largest exporter and third largest producer. This advance despite positive also generates greater waste production. The proper disposal of this waste is one of the major environmental challenges facing the industry, and as an alternative use in agricultural areas. Thus, this study aimed to evaluate evaluate the possible effects of the application of poultry slaughterhouse wastewater (ARAA) on the chemical characteristics of a Dystrophic Red Latosol cultivated with Mombasa grass. The experiment was conducted in a greenhouse located in the Departamento de Engenharia Agricola of the Universidade Estadual de Maringa, using PVC columns. The statistical design was completely randomized (CRD) with four replications. The treatments consisted of ARAA doses, (0, 150, 300, 600 and 900 m ha). Soil samples were collected in two layers (0.0-0.25 and 0.250.50 m) before applying ARAA and at the end of the experiment. It was evaluated the pH, electrical conductivity and concentrations of calcium, magnesium, nitrogen, phosphorus and potassium of the soil. It was possible to verify that ARAA contributed to increasing the pH of the soil and reduction of electrical conductivity, calcium and magnesium in both layers. Increased levels of nitrogen and potassium in the layer of 0.25-0.50 m. Provided favorable conditions for absorption of some nutrients by plants. However further studies with higher doses and different cycles become necessary to have greater clarity about the behavior of the ARRA on the ground.