Abstract: Deep Soil Carbon after 10 Years of Sewage Sludge Application. (ASA, CSSA and SSSA International Annual Meetings (2015))

310-6 Deep Soil Carbon after 10 Years of Sewage Sludge Application.

Poster Number 1115

Tuesday, November 17, 2015

Minneapolis Convention Center, Exhibit Hall BC

Irae Amaral Guerrini¹, Lívia Maria Lima Goulart², Rob Harrison³, Marianne Fidalgo Faria⁴, Thiago Tassio Souza Silva⁵, Grasiela Spada⁵, Rafael Barroca Silva⁶, Fernando Carvalho Oliveira⁷ and Jose Luiz Gava⁸, (1)Dept. Solos e Recursos Ambientais - CP 237, University of Sao Paulo, Botucatu, SP, BRAZIL
(2)Departamento de Solos e Recursos Ambientais, Faculdade de Ciencias Agronomicas/UNESP, Botucatu, Brazil
(3)School of Environmental and Forest Sciences, University of Washington, Seattle, WA
(4)Soils and Environmental Resources, Universidade Estadual Paulista - UNESP, Botucatu, SP, BRAZIL
(5)Solos e Recursos Ambientais, Faculdade de Ciencias Agronomicas/UNESP, Botucatu, Brazil
(6)Dept. Soil and Environmental Resources, São Paulo State University/UNESP, Botucatu, Brazil
(7)BIOSSOLO - Agricultura e Ambiente Ltda., Piracicaba, Brazil
(8)Suzano Papel e Celulose, Limeira, Brazil

Abstract:

The objective of this study was to verify organic carbon (OC) on soil profile after 10 years of sewage sludge application. The experiment was initiated in 2005 in a degraded and compacted area in which native species of Atlantic Forest were planted. After a ripper application, treatments used were: 2.5, 5, 10, 15 and 20 t ha^-1 of raw sewage sludge supplemented with K; inorganic fertilization and a control treatment. Soil density and OC concentration were evaluated till 1.0m depth, showing high carbon stock on soil profile after sewage sludge application.

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