Compost is part of the natural cycle. It is a result of mi¬crobial decomposition of dead organic matter in the presence of oxygen (aerobic conditions). The repeated application of compost on arable and vegetable fields does increase soil organic matter content as well as the microbial diversity and abundance of the soil. Composts can also increase the suppression of soil borne diseases and increase soil health in general. This video describes different types of compost, including thermophilic, vermicompost and others. The challenges with compost, are also outlined.