中文摘要：

本研究以植酸钠为有机磷源,利用根系不同分隔方式的盆栽实验研究了蚕豆/玉米间作体系中,接种根瘤菌、AM真菌（Glomus mosseae）和双接种对间作体系利用有机磷的影响。结果表明：接种AM真菌使蚕豆和玉米的根际磷酸酶活性增加,显著提高了蚕豆/玉米间作体系对有机磷的吸收,双接种处理蚕豆和玉米总吸磷量平均比单接AM真菌和根瘤菌平均分别增加了11.7%和90.8%;相对于其它处理,在双接种条件下蚕豆对玉米吸收有机磷的促进作用更显著,不分隔和尼龙网分隔处理玉米的吸磷量比完全分隔处理分别提高43.4%（5.29mg）和17.9%（2.18 mg）;在间作体系中同时接种AM真菌和根瘤菌能提高玉米的菌根侵染率,间作产量优势显著高于单接AM真菌和根瘤菌。

英文摘要：

Pot experiments with different root barriers were carried out to investigate rhizobium,mycorrhizal fungus and interaction of rhizobium and mycorrhizal fungus（Glomus mosseae） on organic P（phytate） uptake in faba bean/maize intercropping system.The results showed that： acid phosphatase activities in soil rhizosphere of faba bean and maize were improved due to inoculating arbuscular mycorrhiza.P uptake from organic P source in faba bean/maize intercropping system was enhanced significantly.Total P uptake by maize and faba bean inoculated with both microorganisms was increased 11.7% and 90.8% than that inoculated with single arbuscular mycorrhiza and rhizobium respectively.Compared with the other treatments,organic P uptake by maize was most significantly facilitated by associated faba bean.P uptake by maize with no barriers or mesh barriers was improved 43.4%（5.29mg）and 17.9%（2.18 mg）than that with solid barriers respectively.Mycorrhizal root colonization of maize inoculated with rhizobium and mycorrhizal fungus in maize/faba bean intercropping system was higher than that single inoculated with mycorrhizal fungus and rhizobium.Yield advantage of intercropping inoculated with both microorganism was higher than that single inoculated with mycorrhizal fungus and rhizobium.