@article{article3d4449f0,
title   = {CO2, CH4 and N2O fluxes in an Ultisol treated with sewage sludge and cultivated with castor bean},
author = {Chiaradia, Jonas Jacob and Chiba, Marcio Koiti and Andrade, Cristiano Alberto de and Carmo, Janaina Braga do and Oliveira, Claudinei de and Lavorenti, Arquimedes},
year = {2009},
doi = {10.1590/s0100-06832009000600035},
journal   = {Revista Brasileira de Ciência do Solo}
}