Title:	Impacts of sewage sludge in tropical soil: a case study in Brazil.
Authors:	BETTIOL, W. GHINI, R.
Affiliation:	WAGNER BETTIOL, CNPMA; RAQUEL GHINI, CNPMA.
Date Issued:	2011
Citation:	Applied and Environmental Soil Science, New York, v. 2011, 11p., 2011.
Description:	A long-term assay was conducted to evaluate the environmental impacts of agriculture use of sewage sludge on a tropical soil. This paper describes and discusses the results obtained by applying a interdisciplinary approach and the valuable insights gained. ? Experimental site was located in Jaguariuna (SP, Brazil). Multiyear comparison was developed with the application of sewage sludge obtained from wastewater treatment plants at Barueri (domestic and industrial sewage) and Franca (domestic sewage), São Paulo State. The treatments were control, mineral fertilization, and sewage sludge applied based on the N concentration that provides the same amount of N as in the mineral fertilization recommended for corn crop, two, four, and eight times the N recommended dosage. The results obtained indicated that the amount of sewage sludge used in agricultural areas must be calculated based on the N crop needs, and annual application must be avoided to prevent overapplications.
Thesagro:	Adubo de esgoto Lodo residual Impacto ambiental Adubo orgânico
NAL Thesaurus:	Sewage sludge Environmental impact Tropical soils
Keywords:	Lodo de esgoto
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPMA)