Biogas liquid 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.

• 沼液是厌氧发酵的残留物,由于其富含营养物质及微量元素,可提高动植物的抗病能力,故已在农业、畜牧业、养殖业等方面得到广泛应用。