CO2 emission from soil after reforestation and application of sewage sludge

This study aimed to quantify the carbon dioxide emissions from an Oxisol under degraded pasture located in Sorocaba, São Paulo State, Brazil. The treatments were: sewage sludge (LE), sewage sludge compost (CLE), mineral fertilizer (AM) and no fertilization (T0). The experiment was conducted in a com...

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Bibliographic Details
Published in:Bragantia 2014-07, Vol.73 (3), p.312-318
Main Authors: Carmo, Janaina Braga, Urzedo, Danilo Ignácio de, Ferreira Filho, Pedro José, Pereira, Elisabete Alves, Pitombo, Leonardo Machado
Format: Article
Language:eng ; por
Subjects:
AGRICULTURE, MULTIDISCIPLINARY
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Summary:This study aimed to quantify the carbon dioxide emissions from an Oxisol under degraded pasture located in Sorocaba, São Paulo State, Brazil. The treatments were: sewage sludge (LE), sewage sludge compost (CLE), mineral fertilizer (AM) and no fertilization (T0). The experiment was conducted in a completely randomized block design with analysis of the effect of the four treatments (CLE, LE, and AM T0) with four replications. The application of sewage sludge, sewage sludge compost, mineral fertilizer and no fertilizer was statistically significant for the variables of height increase and stem height of Guanandi seedlings (Calophyllum brasiliense Cambessèdes - Calophyllaceae). Treatments showed significant differences in terms of CO2 emissions from soil. The CLE exhibited the highest CO2 fluxes, reaching a peak of 9.33±0.96 g C m- 2 day- 1 (p
ISSN:0006-8705
1678-4499
1678-4499
DOI:10.1590/1678-4499.0093