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Cimélio Bayer ; Frederico C. B. Vieira ; Juliana Gomes ; Michely Tomazi ;Revista Brasileira de Ciência do Solo 2010, 34 5

Autor: Josiléia Acordi Zanatta

Fuente: http://www.redalyc.org/


Introducción



Revista Brasileira de Ciência do Solo ISSN: 0100-0683 revista@sbcs.org.br Sociedade Brasileira de Ciência do Solo Brasil Acordi Zanatta, Josiléia; Bayer, Cimélio; Vieira, Frederico C.
B.; Gomes, Juliana; Tomazi, Michely NITROUS OXIDE AND METHANE FLUXES IN SOUTH BRAZILIAN GLEYSOL AS AFFECTED BY NITROGEN FERTILIZERS Revista Brasileira de Ciência do Solo, vol.
34, núm.
5, 2010, pp.
1653-1665 Sociedade Brasileira de Ciência do Solo Viçosa, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=180215650018 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative NITROUS OXIDE AND METHANE FLUXES IN SOUTH BRAZILIAN GLEYSOL AS AFFECTED. 1653 NITROUS OXIDE AND METHANE FLUXES IN SOUTH BRAZILIAN GLEYSOL AS AFFECTED BY NITROGEN FERTILIZERS(1) Josiléia Acordi Zanatta(2), Cimélio Bayer (3), Frederico C.B.
Vieira (4), Juliana Gomes(5) & Michely Tomazi (5) SUMMARY Nitrogen fertilizers increase the nitrous oxide (N2O) emission and can reduce the methane (CH4) oxidation from agricultural soils.
However, the magnitude of this effect is unknown in Southern Brazilian edaphoclimatic conditions, as well as the potential of different sources of mineral N fertilizers in such an effect.
The aim of this study was to investigate the effects of different mineral N sources (urea, ammonium sulphate, calcium nitrate, ammonium nitrate, Uran, controlled- release N fertilizer, and urea with urease inhibitor) on N2O and CH4 fluxes from Gleysol in the South of Brazil (Porto Alegre, RS), in comparison to a control treatment without a N application.
The experiment was arranged in a randomized block with three replications, and the N fertilizer was applied to corn at the V5 growth stage.
Air samples were collected from a static chambers for 15 days after th...





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