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Título: Performance of tifton 85 grass under fertirrigation with slaughterhouse wastewater
Palavras-chave: Productivity
Agroindustrial wastewater
Data do documento: Ago-2017
Editor: Associação Brasileira de Engenharia Agrícola (SBEA)
Citação: OLIVEIRA, J. F. de et al. Performance of tifton 85 grass under fertirrigation with slaughterhouse wastewater. Engenharia Agrícola, Jaboticabal, v. 37, n. 4, p. 790-800, Aug. 2017. DOI: 10.1590/1809-4430-eng.agric.v37n4p790-800/2017.
Resumo: The aim of this study was to evaluate the performance of Tifton 85 grass cultivated in soil columns and fertilized with different wastewater doses of swine slaughterhouse. 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 de N years−1) consisted of four doses of SW and AQT0 control at random. Three cuts were performed, at 60, 90 and 120 days after planting. The highest yields were 10.06, 16.82 and 20.39 t ha−1 in AQT0, AAT4 and AAT3 treatments, respectively. With the increase of nutrients by N rates and root development of Tifton 85 grass, we observed higher extractions of N, P and K in the second and third cut, with maximum extraction of 384 and 10.3 kg ha−1 of N and P in the higher dose treatments (AAT4), while the maximum extraction of the potassium was 117.7 kg ha−1 in the AAT3 treatment. There was productivity restriction in the third cut due to the reduction of availability of essential nutrients and losses by leaching.
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