ABSTRACT This study investigated the effect of glyphosate and paraquat on soil invertebrate fauna biodiversity, soil physico-chemical properties and the relationship between them with a view to determining the ecological effects of chemicals on the environment. An experimental field of 19 m by 11 m was mapped out at the Teaching and Research Farm of Obafemi Awolowo University, Ile-Ife, for the study. Plots of 4 m by 3 m separated by 1 m were laid out in completely randomized design with thr...