Search results for "tropical soil"

showing 4 items of 4 documents

Analyze and simulation a dynamic of soil indicators fertility under different agricultural management practices in cotton area of Togo

2011

Using data observed during 20 to 40 years in different agro-ecosystems of Togo, we analyzed soil fertility dynamic under different agricultural management practices. Tree soil C models of varying complexity were tested, and the most accurate in terms of soil C dynamics description in these tropical soils was associated with the QUEFTS model and with nutrient partial balance to analyze the effect of each agricultural management practice. Results indicated that, although fertilizers N, P and K were continuously applied at a recommended rate by the research (RR) or at this rate increased in 50% (1.5RR), initial cotton and cereals yields of 1.5 to 2 t ha˗1 and 2 to 3 t ha˗1, respectively, decre…

[SDV.SA] Life Sciences [q-bio]/Agricultural sciencesTropical soil fertilitySub-Saharan AfricaModel QUEFTSFertilité sols tropicauxResistant CAfrique sub-saharienneSoil C models[ SDU.STU ] Sciences of the Universe [physics]/Earth SciencesModèle QUEFTSCarbone résistantExpérimentations de longue duréeModèles évolution stock CLong-term experiment[SDU.STU] Sciences of the Universe [physics]/Earth SciencesAgricultural management practicesPratiques culturales[ SDV.SA ] Life Sciences [q-bio]/Agricultural sciences
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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
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Is soil fauna an important driver of the structure and activities of denitrifier communities in tropical soils?

2007

International audience

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio][SDE]Environmental Sciencestropical soildenitrifier communitysoil faunaComputingMilieux_MISCELLANEOUS
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Impact of fertilization and direct seeding on activity and abundance of key denitrifier communities in a tropical soil

2007

Affiche, résumé; The aim of this work was to investigate to which extent different practices impacted on the bacterial communities involved in N2O emission.

[SDV] Life Sciences [q-bio][ SDV ] Life Sciences [q-bio]fertilization;direct seeding;denitrifier community;tropical soilfertilization[SDV]Life Sciences [q-bio]direct seedingtropical soildenitrifier community
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