Effect of agricultural practices on N2O emissions from Malagasy soils

Emissions of nitrous oxide (N20) are of concern because of the role of this gas in the greenhouse effect. The agricultural practices may affect the rate of N20 emissions from soil. The work focuses on 2 contrasted practices in use in Malagasy Highlands, i.e. a direct seeding on cover crop residues (SD) and a hand ploughing without residue return to soil (HP). Regarding potential denitrification and in situ N20 emissions, no difference was shown between both practices. Other measurements are currently in progress to confirm/invalidate this preliminary result.

Bibliographic Details

Main Authors:	Martinet, Marianne, Chapuis-Lardy, Lydie, Metay, Aurélie, Douzet, Jean-Marie, Rabenarivo, M., Razafimbelo-Andriamifidy, Tantely, Toucet-Louri, Joële, Rakotoarisoa, Jacqueline, Rabeharisoa, R. Lilia
Format:	conference_item biblioteca
Language:	eng
Published:	s.n.
Subjects:	P33 - Chimie et physique du sol,
Online Access:	http://agritrop.cirad.fr/544611/ http://agritrop.cirad.fr/544611/1/document_544611.pdf
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