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Title: Chemical properties of soil fertirrigated with dairy and slaughterhouse wastewater
Keywords: Soil quality
Plant nutrition
Agroindustrial wastewater
Issue Date: 2017
Publisher: Associação Brasileira de Engenharia Agrícola
Citation: OLIVEIRA, J. F. de et al. Chemical properties of soil fertirrigated with dairy and slaughterhouse wastewater. Engenharia Agrícola, Jaboticabal, v. 37, n. 6, p. 1244-1253, Nov./Dec. 2017.
Abstract: The aim of this study was to evaluate the soil chemical properties submitted to fertigation with slaughterhouse (SW) and dairies (DW) wastewater. The experiment was conducted in the Environmental Engineering Center and Sanitary of UFLA/MG in PVC columns filled with Dark Red Latosol (Oxisol) and randomly distributed. The treatments applied with nitrogen based load (300 kg ha years-1 of N) consisted of four doses of SW and DW (100, 200, 300 and 400% of the recommendation) and AQT0 control at random. The soil was collected at a depth of 0.30 m and, subsequently, characterized in terms of physical, chemical and physicochemical. The application of treatment of the largest irrigation of DW provided, after 120 days of monitoring, N concentration of 1.85 g kg-1 . However, the treatment with AQT0 obtained N concentration of 0.81 g kg-1 , in the soil. We observed that the largest irrigation of SW provided increases of 2.62 and 5.49 g kg-1 , respectively, in the P and K concentrations of the soil. There was quadratic increase in the N concentration in the 0.30 m soil depth of the columns with the increase in the applied irrigations of SW and DW, being obtained maximum values of 1.85 and 1.02 g kg-1 that were obtained in the relative irrigation of the application dose of 600 kg ha-1 of N.
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