Influence of no-tillage and cover plants on water and nitrogen dynamics in the Cerrados, Brazil

Reyes Gomez Victor Manuel, Findeling Antoine, Marlet Serge, Oliver Robert, Maraux Florent, Alves Moreira José Aloisio, Stone Luis Fernando, Douzet Jean-Marie, Scopel Eric, Recous Sylvie. 2002. Influence of no-tillage and cover plants on water and nitrogen dynamics in the Cerrados, Brazil. In : World congress of soil science. Thailande-Ministry of Agriculture and Cooperatives-LDD, SFST, IUSS, FFTC, WASWC. Bangkok : WCSS, 1 Cd-Rom World Congress of Soil Science. 17, Bangkok, Thaïlande, 14 Août 2002/20 Août 2002.

Url - jeu de données - Dataverse Cirad : https://doi.org/10.18167/DVN1/CMYEVA

Autre titre : Influence du non-travail du sol et des plantes de couverture sur les dynamiques de l'eau et de l'azote dans les Cerrados, Brésil

Note générale : Symposium n° 13 ; Paper n° 1337 ; Presentation : poster

Résumé : Cropping systems with no-tillage and cover plants (CPCS) is a common practice in the region of the Cerrados in Brazil. To better understand the benefits of such a practice, we carried out a study to quantify the water and nitrogen balances of 3 different cropping systems (1 conventional system (T0) and 2 CPCS (T1 and T2)) in Santo Antônio de Goiás (Brazil). The main terms of the water and nitrogen balances (soil hydraulic properties, nitrogen content, crop and cover plant biomass, soil mineralisation, cover plant decomposition) were measured during a one year experiment. The results showed a better water conservation with T2 and T1 than with T0, mainly due to a higher water infiltration rate. Nitrogen was more efficiently recycled by the cover plant in T1 and T2, than with T0 where N leaching was high.

Mots-clés Agrovoc : Oryza sativa, non-travail du sol, couverture végétale, Brachiaria ruziziensis, Sorghum, résidu de récolte, bilan hydrique du sol, azote, minéralisation, dégradation

Mots-clés géographiques Agrovoc : Brésil

Mots-clés complémentaires : Cerrado

Classification Agris : F07 - Façons culturales
P33 - Chimie et physique du sol

Auteurs et affiliations

• Reyes Gomez Victor Manuel, CIRAD-AMIS-AGRONOMIE (FRA)
• Findeling Antoine, CIRAD-AMIS-AGRONOMIE (FRA)
• Marlet Serge, CIRAD-AMIS-AGRONOMIE (FRA) ORCID: 0000-0001-7477-922X
• Oliver Robert, CIRAD-AMIS-AGRONOMIE (FRA)
• Maraux Florent, CIRAD-AMIS-AGRONOMIE (FRA)
• Alves Moreira José Aloisio, EMBRAPA (BRA)
• Stone Luis Fernando, EMBRAPA (BRA)
• Douzet Jean-Marie, CIRAD-CA-GEC (BRA) ORCID: 0000-0002-8401-6012
• Scopel Eric, CIRAD-CA-GEC (BRA) ORCID: 0000-0003-2938-6587
• Recous Sylvie, INRA (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/511340/)

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