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Carbon management practices and benefits in Conservation Agriculture systems: carbon sequestration rates

De Moraes Sa J.C., Tivet F., Lal R., De Oliveira Ferreira A., Briedis C., Massao Inagaki T., Potma Gonçalves D.R., Romaniw J.. 2020. In : Kassam Amir (ed.). Advances in conservation agriculture. Volume 2: Practice and benefits. Cambridge : Burleigh Dodds Science Publishing, p. 199-227. (Burleigh Dodds Series in Agricultural Science, 62).

DOI: 10.19103/AS.2019.0049.08

The adoption of Conservation Agriculture (CA) and the maintenance of crop residues on the soil surface result in the long-term increase of carbon (C) in the system, promoting C sequestration and reducing C-CO2 emissions to the atmosphere. The present study conducted in subtropical and tropical regions in Brazil aimed to assess the impact of the continuous plow-based conventional tillage (CT) on soil organic carbon (SOC) stock vis-à-vis native vegetation (NV) as baseline, compare SOC balance among CT, CA cropping systems, and NV; and evaluate the redistribution of SOC stock in soil profile in relation to soil resilience.

Mots-clés : agriculture de conservation; système de culture; séquestration du carbone; résidu de récolte; carbone organique du sol; labour; brésil

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