Answer the following:

Why should farmers enhance the amount of humus in their farmland? How do they do that?

Humus is organic manure that is formed by the decomposition of organic matter present in the soil. It has the ability to bind the loose soil, enhance the water retention capacity of the soil, prevent soil erosion and assist in aeration and penetration of roots.

Farmers can enhance the amount of humus in the soil by preparation of compost pit. Some farmers keep the land unused for a season or two.