Considerable practical experiences and pilot studies indicate that biogas fermentative residue have some special characteristics, such as fertilizer, seed soaking and feed additivity.

• 大量的实际经验和试验研究表明，沼气发酵残留物(沼液和沼渣)是一种集肥料、浸种、饲料添加剂等特性为一身的特殊物质。