OUEDRAOGO Frédéric

French National Institute for Agriculture, Food, and Environment (INRAE) | INRAE · Interactions Sol Plante Atmosphère

Siderophores are biogenic metallophores that can play significant roles in the dynamics of a range of metals, including Cu, in the soil. Understanding the impact of siderophores on the mobility and the availability of metals in soil is required to optimize the efficiency of soil remediation processes such as phytoextraction. This study compared the...

While in tropical soils recycling of plant phytoliths has been shown to represent a major pool of Si available for plants, the main Si pools available for plants in temperate soils are still poorly constrained. We characterised the various Si pools of temperate forested and cultivated soils in France by selecting seven paired sites (adjacent wheat...

Accumulation of copper (Cu) in soils due to the application of fungicides may be toxic for organisms and hence affect winegrowing sustainability. Soil parameters such as pH and dissolved organic matter (DOM) are known to affect the availability of Cu. In this study, we investigated the contribution of chromophoric and fluorescent DOM properties to...

Depuis la découverte de la bouillie bordelaise en 1882, l’utilisation prolongée du cuivre en tant que fongicide a entrainé son accumulation dans les sols viticoles. Le cuivre étant le seul fongicide utilisable en agriculture biologique, son usage reste important. Néanmoins, le passage du cuivre en solution sous forme libre peut entrainer de potenti...

Copper has been used as a fungicide for more than 100 years in viticulture, arboriculture and market gardening. It is currently the only fungicide authorized in organic farming. Because of the accumulation of copper in the top soil horizon (Brun et al., 1998), high concentrations are noticed. Phytotoxicities have been observed in vineyard soils in...