Compost is used as a soil conditioner for improving the soil structure. It helps to retain moisture and reduces leaching in sandy soils. In clayey soils, compost improves aeration. Changing agricultural wastes into compost will greatly reduce the country's fertilizer imports. It may solve environmental problems due to excessive use of chemicals, accumulation of agro-waste and failure to return organic matter to the soil. There are two methods of composting, namely, the pit method and heap method. In composting, various factors which influence the composting processes have to be considered. These include C:N ratio, temperature, moisture content, oxygen level, pH of the compost and the type of agro-waste.