Fertilizing reclamation of arbuscular mycorrhizal fungi on coal mine complex substrate

A series of pot culture experiments are carried out to evaluate the effects of inoculation of arbuscular mycorrhizal fungi (AMF) Glomus versifome (G.v) B1 and Glomus mosseae (G.m) B2 in different weight ratios (A1, A2, A3) of coal mine complex substrates. The results show that the increasing rates of organic matter, total N, P, and K reach 8.86%, 5.26%, 18.66% and 3.16%. A2 is selected as the suitable covering soil and B2 (G.m) as the preponderant AMF. White clover is suitable in the coal mine reclamation. Through promoting plants roots growth and the transformation of insoluble nutrition element to available state, the inoculation of AMF increases the nutrition absorption of plants and organic content in the substrate, fertilizing the coal mine complex substrate in the coal mine reclamation. The combination of AMF and sludge is able to enhance the fertilizing of coal mine castoff.