ABSTRACT
The environmental and agronomic benefits of adding biochar to soil have been widely explored worldwide. However, the mechanism of biochar–herbicide interaction still needs more studies for a better understanding. The biochar–herbicide interaction is very complex and varied as it directly depends on the physicochemical properties of both products and influences the behavior of herbicides in the soil in the form of processes sorption–desorption, leaching, and degradation, either for weed control efficacy or for remediation of contaminated environments. This chapter focuses on the interactions between biochar and herbicides, illustrating the mechanisms of biochar sorption for herbicides and the relationships between the structure of biochar and the physicochemical properties of herbicides in sorption. The processes of biochar sorption for different herbicides, providing guidelines for the effective use of this promising soil additive in agricultural practices and environmental management, are discussed.
