History of the development of triazine herbicides. - Use and performance of triazine herbicides on major crops and major weeds throughout the world. - to triazine-soil interactions. - Factors influencing the adsorption desorption and movement of pesticides in soil. - Mechanisms of adsorption of s-triazines by clay colloids and factors affecting plant availability. - Adsorption of triazine herbicides on soil organic matter including a short review on soil organic matter chemistry. - Movement of s-triazine herbicides in soils. - Effect of triazine herbicides on soil microorganisms. - Microbial degradation of triazine herbicides. - Volatilization and non-biological degradation of triazine herbicides in vitro and in soils. - Persistence of triazine herbicides and related problems. - Ways and means to influence the activity and the persistence of triazine herbicides in soils. - Quantitative determination of triazine herbicides in soils by bioassay. - Quantitative determination of triazine herbicides in soils by chemical analysis. - Summary and conclusions. Language: English