Study on the Effects of Ectomycorrhizal Preparation on Seedling Growth of Pinus bungeana

Pinus bungeana is a peculiar valuable tree species to China. The character of low growth obstructed its popularity. In this experiment, 7 kinds of ectomycorrhizal preparations were used to treat the rhizosphere soil of P. bungeana seedlings, and the infection ability of ectomycorrhizal preparation and its effect on accelerating the growth of P.bungeana were analyzed. The results were as follows: (1) Mycorrhizal treatment could accelerate effectively the increments of height, basal diameter, dry weight and lateral roots. (2) Mycorrhizal treatment raised the contents of N, P, K and chlorophyll. (3) The excellent fungi strains Boletus edulis and Xerocomus chrysenteron which could accelerate the growh of P. bungeana in Beijing were selected.