The Effects of Mycorrhizae on the Growth of Pinus massoniana and the Medium in Containers

It was very significant for the effects of culturing seedlings of Pinus massoniana Lamb associated with mycorrhizae in containers.The growth of the seedlings was greatly increased.The height,diameter and dry weight of the seedlings with mycorrhizae raised by 109.7%,66.4% and 411.2% respectively as compared with those without mycorrhizae. Thephysical and chemical character is tics ot the medium in containers were improved,in whichthe medium became loosened, kept much water,contained more nutrients such as organicmatters、N、P、and K. and increased the total quantity of microorganisms and the proportionof fungi to Actinomyces,and lowered the ratio of R/S.