Abstract:

Effect of AM fungi on the growth of Elaeagnus mollis under varied fertilization was studied. The result showed that 2 fungi infected the seedling of Elaeagnus mollis, and significant difference between the seedling infected by two fungi and control of Elaeagnus mollis seedling in the height, ground diameter and Total dry biomass under no fertilization. And the height, ground diameter and dried biomass were related with infected rate of fungi. The AM fungi could enhance the absorbing ability of seedling to hard-dissolved phosphorus with Ca(H2PO4)2?H2O [fertilized concentra-tion equalized effective component (P2O5) 0.04 g/kg]. The combine of AM fungi and dissolved phosphorus K2HPO4 [fertilized concentration equalized effective component (P2O5) 0.02 g/kg] was the best, while the higher concentration of phosphorus leaded a decrease of biomass. The AM fungi could also enhance absorbing ability of seedling to dissolved nitrogen. The growth of seedling increased under infected by AM fungi with KNO3[fertilized concentration equalized effective component (NO3-) 0.06 g/kg]and by AM fungi with (NH4)2SO4 [fertilized concentration equalized effective compo-nent (NH4+) 0.06 g/kg]. The fertilization of root area was crucial for infected rate of fungi.