Composting is the procedure by which waste material is converted into manure. Biodegradable substances which can be degraded by microorganisms are dumped into a pit and covered with soil.
Fertilizers are manmade fertilizers used to increase the growth of plants on the farm.
Compost is rich in nutrients and therefore increases the fertility of the soil. Although fertilizers also increase fertility, they are artificial chemicals that can pass through the soil to the water, and these chemicals can be fatal for aquatic life.
It increases crop yield and disease resistance in plants.
It is cheap and can be made at home also by the waste generated on a daily basis. Fertilizer on the other hand is expensive and a poor farmer cannot afford it.