Effect on Growth of One-year Poplar Seedling with VAM in Different Fertilization Methods

The effect on growth of one-year poplar seedlings with VAM in different fertilization methods has been studied,which shows that the mycorrhiza can be become into being between the four fungi supplied and the poplar seedlings one-year,further more the biomass can be improved significantly.Among the fungi supplied,the Glomus sinuasa was the most one to poplar seedlings in improving biomass,the Glomus mosseae was the following one.The analysis of result between fungi and fertilizers shows that the four fungi supplied can improve the usage rate of phosphate fertilizer than of nitrogen fertilizer and at using slightly solubility phosphates Glomus sinuasa、Glomus mosseae and Glomus intraradicec were better than the others and there was no significant between the treatments.At using instant phosphate the Glomus sinuasa was the best one to improve the biomass,the Glomus mosseae was following.