Biogas residue has been wildly used in agriculture and stockbreeding for its rich content of nutriment and microelement and improving immune ability of crop and livestock.

• 沼渣是厌氧发酵的残留物,由于其富含营养物质及微量元素,对动植物的生长发育和抗病能力的提高有显著作用,故已在农业,畜牧业,养殖业等方面得到广泛应用。