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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。
In this study, phytase was used as organic phosphorus source to study the effects of inoculation of rhizobia, AM fungus (Glomus mosseae) and double inoculation on the utilization of organic phosphorus in the faba / maize intercropping system. The results showed that the inoculation of AM fungi increased the rhizosphere phosphatase activity of broad bean and maize, and significantly increased the uptake of organic phosphorus by broad bean / maize intercropping system. Compared with other treatments, the effect of broad bean on the uptake of organic phosphorus in maize was more significant than that of other treatments. The phosphorus uptake of maize without seperation and nylon mesh separation was significantly higher than that of complete seperation treatment Increased by 43.4% (5.29mg) and 17.9% (2.18 mg) respectively. Inoculation of AM fungi and rhizobia in intercropping system increased the mycorrhizal infection rate of maize, and the yield superiority of intercropping was significantly higher than that of AM and Rhizobium.