Menu

Stephane SAJ

YAOUNDÉ

En résumé

Je n'utilise plus que rarement cette page, vous pouvez consulter
mon profil mis à jour en copiant-collant l'url suivante :

http://fr.linkedin.com/pub/stephane-saj/24/a81/214

Merci!

Principales publications à ce jour :


Root-induced decomposer growth and plant N uptake are not positively associated among a set of grassland plants. 2007
Auteur(s) : Stephane Saj
Saj, S., Mikola, J., Ekelund, F. 2007. Applied Soil Ecology, 37, 215-222

Short-term plant-decomposer feedbacks in grassland plants. 2008
Auteur(s) : Stephane Saj
Saj, S. 2008. Doctoral dissertation, University of Helsinki. Helsinki University Press

Effects of legume defoliation on rhizosphere decomposers and organic matter N uptake of a neighbouring grass. 2008
Auteur(s) : Stephane Saj
Saj, S., Mikola, J., Ekelund, F. Plant and Soil, 311, 141-149

Species-specific effects of live roots and shoot litter on soil decomposer abundances do not forecast plant litter-nitrogen uptake. 2009
Auteur(s) : Stephane Saj
Saj, S., Mikola, J., Ekelund F. Oecologia, 161, 331-341

The “soil microbial loop” is not needed to explain the positive effect of protozoan stimulation on plants. http://www.sciencedirect.com/science/article/pii/S0038071709003083 |2009
Auteur(s) : Stephane Saj
Ekelund,F., Saj, S., Vestegaard, M., Mikola, J. Soil Biology and Biochemistry, 41, 2336-2342

Influence of long-term organic and mineral fertilization on soil nematofauna when growing Sorghum bicolor in Burkina Faso. 2010
Auteur(s) : Stephane Saj
Villenave, C., Saj, S., Pablo, A.L., Sall, S., Djigal, D., Chotte, J.L. Biology and Fertility of Soils, 46, 659-670

Additive and interactive effects of functionally dissimilar soil organisms on grassland plant community. 2010
Auteur(s) : Stephane Saj
Ladygina,N., Henry,F., Kant,M.R., Koller,R., Reidinger,S., Rodriguez,A., Saj,S., Sonnemann,I., Witt,C., Wurst, S. Soil Biology and Biochemistry 42, 2266-2275


Grassland management history affects the response of nematode community to changes in aboveground grazing regime. 2011
Auteur(s) : Stephane Saj
Villenave, C., Saj, S., Blanc, C., Attard, E., Klumpp, K., Soussana, J.F., Le Roux, X. Nematology 13, 995-1008

Mulch type affects soil biological functioning and crop yield of conservation agriculture systems in a long-term experiment in Madagascar. 2012
Auteur(s) : Stephane Saj
Djigal, D., Saj, S., Rabary, B., Blanchart, E., Villenave, C. Soil and Tillage Research, 118, 11-21


Impacts of trace amounts of labile C on plant N limitation vary from hour to week timescales. 2012
Auteur(s) : Stephane Saj
Mikola, J., Saj, S. Biology and Fertility of Soils (in press)

Mes compétences :
Recherche
Écologie
Europe
Agriculture
Politique

Entreprises

  • Indépendant - Traducteur

    maintenant Ponctuellement, j'ai aidé à la traduction de données scientifiques pour brevet en anglais ou en francais.

  • CIRAD - Chercheur

    Paris 2012 - maintenant UMR SYSTEM - durabilité des systèmes agroforestiers

  • Groupe ISA -Lille - Enseignant-chercheur en productions végétales et sciences du sol

    2009 - 2012

  • Institut polytechnique LaSalle Beauvais - Enseignant-Chercheur Agrenvironnement

    BEAUVAIS cedex 2008 - 2009

  • University of Jyvaskyla and Helsinki, Finlande - Copenhagen University, Denmark - Ingenieur de recherche - doctorant

    2005 - 2008 PhD-research

    BIORHIZ, or Biotic Interactions in the Rhizosphere as Structuring Forces for Plant Communities (2004-2007)
    I am a part of BIORHIZ, a European Union funded Research Training Network established to examine the effects of biotic interactions in the rhizosphere on plant community structure. My group is interested in soil decomposer feedbacks, and the aim of my studies is to find out whether plants and aboveground herbivores affect soil decomposer communities in a way that will feed back to plant growth and nutrient uptake. For this purpose, I will establish greenhouse experiments to acquire a better knowledge on 1) the ability of plants to encourage soil decomposers to release nutrients from dead organic matter for their use, 2) the ability of plants to manipulate decomposer communities in order to make them better suited for decomposing their own litter, 3) the effects of rhizosphere C release on plant nutrient uptake, and 4) the effects of defoliation on plant nutrient uptake from litter.

    Supervisors: Dr. Juha Mikola (Department of Biological and Environmental Science, University of Jyväskylä, Finland).

    Mise en place de collaborations avec divers laboratoires européens - organisation de meetings -

  • Fondation Européenne pour la Science - Aide-comptable

    2004 - 2004

  • FREDECA - Chargé de mission

    2004 - 2004 Mission de créations d'outils de communication sur les bonnes pratiques agricoles en viticulture à destination des exploitants alsaciens. Concertations entre pouvoirs publics et associations - organisation de réunions - visites de terrains.

  • Service Regional de Protection des Vegetaux - Ingénieur - chargé de mission

    2002 - 2003 Volontariat civil a l'aide technique.15 mois. Cartographie des sols pollués par un type de pesticide en Guadeloupe; terrain; aide à la rédaction d'un arrêté préfectoral; creation d'outils de communication à l'intention des populations concernées.

Formations

Réseau

Annuaire des membres :