Abstract:The results indicate that different proportions of forage and biogas residues substituted for wood pieces have various effects on yield and quality of A.polytricha.The better one is substituted 30% of grass power and 30% of biogas residues for wood pieces,and its biological efficiency is 107.5%,the yield is increased by 82.2%,crude protein,aminoacid,crude fat and soluble sugar increased by 3.7%,1.75%,0.13% and 0.37% respectively.The yield is increased by 55.1% and 61.0% respectively when 50% of grass power or biogas residues substitute for wood pieces.As compared with CK,the carbon in humic acid of red soil is increased by 22.9%,26.5%,16.5% respectively by all applying 5t/hm2 of biogas residues,fungi residues and fresh grass in orchard for three years.The granular structure is enhanced by 78.5%,79.9% and 69.3% respectively.