Effect of inoculation of arbuscular mycorrhizal fungi and Rhizobium on the P uptake in faba bean ／maize intercropping system

Pot experiments with different root separations were conducted tO study the efect of inoculation of arbuscular mycorrhizal(AM)fungi and Rhizobium on the organic P uptake in faba bean／maize intercropping system．The results show that P uptakes by faba bean and maize inoculated with AM fungi are increased by 138． 1％ and 82．3％ compared with the contro1．Symmetrical efect on organic P uptake is observed when faba bean is inoc ulated with AM fungi and Rhizobium ．The number of nodules ，weight of nod ules and mycorrhizal colonization of faba bean are significantly increased．At the same time the growth of the associated maize is significantly facilitated due tO the improvement of nutrition condition．