Biochar microbial active soil conditioner and preparation method thereof

The invention discloses a biochar microbial active soil conditioner and a preparation method thereof, and belongs to the technical field of microorganisms. The conditioner is prepared from the following raw materials in parts by weight: 40 to 80 parts of modified sludge biochar, 10 to 20 parts of peanut shells, 10 to 20 parts of humic acid, 5 to 10 parts of urea, 5 to 10 parts of ammonium dihydrogen phosphate, 5 to 10 parts of attapulgite, 1 to 4 parts of a microbial agent and 0.1 to 0.5 part of a conditioner. Municipal sludge is used as a raw material to prepare sludge biochar, through the steps of drying pyrolysis modification and the like, the physical and chemical properties of the sludge biochar are fully improved, and the adsorption capacity of the sludge biochar to heavy metal ions is improved; according to the invention, the compound kocuria rosea and the phanerochaete hirsutum are used as functional microbial agents, and the kocuria rosea and the phanerochaete hirsutum have a synergistic effect, so t