This research was composed of two experiments, in which two factors were arranged with the full block random type with three replications. The first experiment consisting of factor A was materials mixed with coffee husks type (A1: manure (cow dung); A2: fresh straw; A3: vegetable waste) and factor B was rate of mixing materials (B1: 0% (control); B2: 20%; B3: 30%). | Effects of types and rates of mixing materials concentration of effective microorganisms on anaerobically composting process of coffee husks