广西桂南甘蔗根际土壤AM真菌资源及AM菌剂促进甘蔗生长效应

来源 :中国菌物学会2015年学术年会 | 被引量 : 0次 | 上传用户:shingohit
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  我国甘蔗栽培主要采用单一连作制,已达20-30 年甚至更长时间.许多蔗区由于多年的连作和过度施用化肥,不仅对环境造成污染,还造成土壤板结,已无法通过增施化肥来提高产量.AM 真菌能改良土壤生态,在退化土壤恢复中起重要作用.
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AM 真菌与细菌都是微生物中的重要功能组群,在土壤磷循环中发挥着至关重要的作用,而且两者之间的相互作用也有利于土壤磷的周转和植物磷养分的吸收,但其互作机理及其对土壤磷周转与利用的生态功能的研究还很薄弱。