Les modèles de culture et fonctionnels

National audience

Effect of incorporation of Brassica napus L. residues in soils on mycorrhizal fungus colonisation of roots and phosphorus uptake by maize (Zea mays L.)

International audience; Plants in the Brassicaceae family are known to contain thioglucoside compounds that produce isothiocyanates when tissues are disrupted. These chemicals have a negative effect on soil-borne fungal pathogens, and possibly on vesicular-arbuscular mycorrhizal (AM) fungi. We investigated the effect of incorporation of Brassica napus L. residues in a soil on mycorrhizal colonisation of roots, P uptake and growth of following maize (Zea mays L.) crop. A pot experiment was carried out in a glasshouse with pre-inoculation with Glomus intraradices (+I and -I), incorporation of B. napus L. residues (+R and -R) and mineral P fertilization (+P and -P) as studied factors. The soil…

Méthode de coloration pour l'observation et le comptage des endomycorhises à vésicules et arbuscules sur racines de maïs

Cette méthode permet d'observer et de quantifier les Mycorhizes à Vésicules sur des racines de maïs sous loupe binoculaire (X 60)

Which benefits in the use of a modeling platform : the VSoil example

In the environmental community the need for coupling the models and the associated knowledges emerged recently. The development of a coupling tool or of a modeling platform is mainly driven by the necessity to reate models accounting for multiple processes and to take into account the feed back between these processes. Models focusing on a restricted number of processes exist and thus the coupling of these numerical tools appeared as an efficient and rapid mean to fill up the identified gaps. Several tools have been proposed : OMS3 (David et al. 2013) ; CSDMS framework (Peckham et al. 2013) ; the Open MI project developed within the frame of European Community (Open MI, 2011). However, what…

Incorporation of Brassica napus L. residues in soils does not affect mycorrhizal colonisation of roots and P uptake by maize (Zea mays L.)

International audience

La plate-forme de modélisation "VSoil"

National audience

Does incorporation of Brassica napus L. resudues in soil affect mycorrhizal colonisation of roots and P uptake by maize (Zea mays L.) ?

International audience

Méthode de coloration pour l'observation et le comptage des endomycorhizes à vésicules et arbuscules sur racines de maïs

National audience

On the need to establish an international soil modelling consortium

The Soil Virtuel modeling platform

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