Cultivating A.Polytricha with forage and biogas residues and the effect of fungi residues on soil improvement

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.