Explanation:
Humus gives the soil the ability to absorb and retain moisture. Such soils do not dry out and require significantly less irrigation. Humus provides a reservoir for the plant nutrients available in the soil for balanced plant growth. Humus is a brown or black material in soil that is formed when plants an animals decay. Humus is important because it controls and regulates many soil functions as well as plant growth. It holds soil moisture longer, therefore requiring less water.
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