Composting is a controlled, aerobic (oxygen-required) process that converts organic materials into a nutrient-rich soil amendment or mulch through natural decomposition. The end product is compost – a dark, crumbly, earthy-smelling material.

By far the bulk of composted material is used as a soil conditioner by agriculture and the building industry. Other uses include top-dressing of turf, and the manufacture of growing media, topsoils and subsoils. Some fractions are also used in markets that use mulches.

Compost can be prepared within a concrete tank or mud pit. Organic waste from kitchen, garden or crop fields is collected and placed in the sun for about 8-12 days. The collected waste is then kept in that pit for decomposition. A layer of soil is then put after a few layers of waste in an alternate manner.