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OALib Journal期刊
ISSN: 2333-9721
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胶质类芽胞杆菌对花生生长和土壤微生物学性状的影响
DOI: 10.3724/SP.J.1145.2014.00185, PP. 185-191
Keywords: 胶质类芽胞杆菌3016接种,花生性状,土壤微生物数量,土壤酶活性,pcr-dgge
Abstract:
研究不同施用条件下胶质类芽胞杆菌3016对花生生长、土壤酶活性及微生物多样性等的影响，为揭示该菌种的增产机理提供依据.田间小区试验设置4个处理：t1（对照）、t2（接种3016）、t3（接种3016，50%的常规施肥量）和t4（常规施肥）.结果发现，t3处理花生单株总果数、单株总果重、百仁重、出米率和产量表现均为最高，分别高出对照27.1%、22.9%、7.8%、2.4%和10.4%；花生果仁和茎叶中养分含量与t4处理持平或略高，其中钾含量增加显著（p<0.05），分别达到0.55%和1.19%；同时，t3处理土壤细菌、放线菌数量和土壤脲酶活性也显著（p<0.05）高于对照，土壤菌群结构得以改善，有助于实现土壤肥力的提高.因此，接种胶质类芽胞杆菌3016配施50%的常规施肥量，不仅能达到花生高产的目的，而且改善了土壤的生物学性状，是一种节本增效的施肥方式.
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