ATTRIBUTES OF DYSTROPHIC LATOSOL IN SOUTHERN MINAS GERAIS AFTER APPLICATION OF SEWAGE SLUDGE

• Autor(a) principal: Moreira, Rodrigo Santos
• Data de Publicação: 2015
• Outros Autores: Mincato, Ronaldo Luiz, Santos, Breno Regis, Barbosa, Rômulo Spuri, Rezende, Adauton Vilela de, Andrade, Marcio Donizetti de
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Brasileira de Ciências Ambientais (Online)
• Texto Completo: https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/180
• topic: soil fertility; organic waste; biosolids.

In general, tropical soils present low natural fertility, which results in a greatamount of degraded areas if it is associated with improper handling. Sewagesludge, due to its high levels of organic matter and nutrients, can improve soilproperties. Thus, this study evaluated the conditioning and fertilizing effectsof sewage sludge on the attributes of a typical dystrophic latosol in SouthernMinas Gerais. The experiment evaluated the application of sludge fromSantana wastewater treatment plant in Varginhas (Minas Gerais, Brazil) inpots, with concentrations equivalent to 60, 120, and 180 t ha-1, and a controltreatment without sludge. The sewage sludge has increased the levels oforganic matter, cation-exchange capacity, sum of the bases and nutrients,as well as increased porosity and decreased soil density, thus indicating thepotential for conditioning and fertilizing agricultural soils.