The prediction of the movement and fate of herbicides in soils represents an important startegy in limiting their environmental impact. The chemico-physical properties of herbicides affect thier behaviour in soil and regulate their interaction mechanisms with organic and inorganic soil phases. Among these, dissolved organic matter plays an important role bacause it influences the mobility of herbicides by complex interactions that can facilitate or reduce the movement of chemicals along the soil profile. The knowledge of soil phase characteristics and the mechanisms involved in herbicide transformation can help to understand the fate of herbicides in soil
