👉 Undergraining is a method of agriculture in which crop residues are used to enrich soil and improve the quality of the soil. It involves using the residue from crops to fertilize the soil, which can help to increase the amount of nutrients available for plants to absorb and grow. The term "undergraining" is often associated with the concept of composting, a process in which organic matter (such as agricultural waste) is mixed with water and then left to decompose. The resulting compost is
