0000000000652579

AUTHOR

Bodovololona Rabary

showing 3 related works from this author

Direct seeding mulch-based cropping increases both the activity and the abundance of denitrifier communities in a tropical soil

2009

International audience; This study evaluated the impact of direct seeding mulch-based cropping (DMC), as an alternative to conventional tilling (CT), on a functional community involved in N cycling and emission of greenhouse gas nitrous oxide (N2O). The study was carried out for annual soybean/rice crop rotation in the Highlands of Madagascar. The differences between the two soil management strategies (direct seeding with mulched crop residues versus tillage without incorporation of crop residues) were studied along a fertilization gradient (no fertilizer, organic fertilizer, organic plus mineral fertilizers). The activity and size of the denitrifier community were determined by denitrifica…

Crop residueDenitrificationNOSZ GENENITROUS OXIDEDIRECT SEEDING[SDE.MCG]Environmental Sciences/Global ChangesSoil ScienceTRAVAIL DU SOLFAUNE DU SOL010501 environmental sciences01 natural sciencesMicrobiologyABONDANCESoil managementAZOTE[SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/EcosystemsEVOLUTION DES SOLS SOUS CULTUREPAILLAGESEMI DIRECTComputingMilieux_MISCELLANEOUS0105 earth and related environmental sciences2. Zero hungerTILLAGEENGRAISMICROORGANISMEfood and beveragesSoil classification04 agricultural and veterinary sciencesDENITRIFICATION15. Life on landCrop rotationGENEPRATIQUE CULTURALETillageSoil conditionerGENE ABUNDANCESAgronomyMULCH040103 agronomy & agriculture0401 agriculture forestry and fisheriesEnvironmental scienceRAPPORT CNNIRK GENE16SRDNA GENE[SDE.BE]Environmental Sciences/Biodiversity and EcologyMulchRIZ[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis
researchProduct

Differential Responses of Nitrate Reducer Community Size, Structure, and Activity to Tillage Systems

2009

ABSTRACT The main objective of this study was to determine how the size, structure, and activity of the nitrate reducer community were affected by adoption of a conservative tillage system as an alternative to conventional tillage. The experimental field, established in Madagascar in 1991, consists of plots subjected to conventional tillage or direct-seeding mulch-based cropping systems (DM), both amended with three different fertilization regimes. Comparisons of size, structure, and activity of the nitrate reducer community in samples collected from the top layer in 2005 and 2006 revealed that all characteristics of this functional community were affected by the tillage system, with increa…

[SDE] Environmental SciencesNITROUS-OXIDE EMISSIONSApplied Microbiology and BiotechnologyMicrobial EcologyCARBON[ SDE ] Environmental Sciences03 medical and health scienceschemistry.chemical_compoundHuman fertilizationNitrateMadagascarMANAGEMENTAGRICULTURAL SOILSNitritesSoil Microbiology[SDV.EE]Life Sciences [q-bio]/Ecology environment2. Zero hunger0303 health sciencesNitratesConventional tillageLAND-USEEcologyReducer030306 microbiologyMICROBIAL BIOMASSCONVENTIONAL TILLAGEAgricultureBiodiversityDENITRIFICATION04 agricultural and veterinary sciencesTillageSoil conditionerORGANIC-MATTERDENITRIFYING BACTERIAchemistryAgronomy[SDE]Environmental Sciences040103 agronomy & agriculture0401 agriculture forestry and fisheriesEnvironmental scienceOxidation-ReductionMulchSoil microbiologyFood ScienceBiotechnology
researchProduct

Do tropical soil engineer stimulate the bacterial communities link to N2O emission?

2009

National audience

[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesbacterial communitie[SDV]Life Sciences [q-bio][SDE]Environmental Sciencestropical soilComputingMilieux_MISCELLANEOUSN2O emission
researchProduct