In the present study, the bacterial number (107/g) was found to be similar in all composts, and only seventeen visually diverse bacteria could be differentiated. This might be because of the ingredients used in the compost preparation. KFRI weed compost was prepared by aerobic composting of common weeds. KAU vermicompost and market available composts were obtained from dried leaves/cowdung and vegetable/fruit wastes, respectively. This supported findings on the effect of different compost material on bacterial growth [30].