Question

advantages of adding manure to soil

Answer 1

the advantages of adding manure to the soil is that it's provide lots of humus to the soil

it is natural so it does not damage any plant

Answer 2

Adding manure to compacted soil helps loosen the soil. Manure produces increased soil carbon, which is an important source of energy that makes nutrients available to plants. Other benefits of manure include reduced runoff and leaching of nitrates in the soil.
hope it helps....