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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.
To study the effects of Bacillus cereus 3016 on the growth of peanut, soil enzyme activities and microbial diversity under different application conditions, and to provide the basis for revealing the mechanism of the increase of production.Field plot test was set to four treatments: T1 (control) T2 (inoculation 3016), T3 (inoculation 3016, 50% of conventional fertilization) and T4 (conventional fertilization) .The results showed that the total number of peanut single plant, total fruit weight per plant, And the highest yield were 27.1%, 22.9%, 7.8%, 2.4% and 10.4% higher than the control respectively. The nutrient content of kernel and stem of peanut was the same or slightly higher than that of T4, and the content of potassium increased significantly (P < 0.05), respectively, reaching 0.55% and 1.19% respectively. At the same time, T3 soil bacteria, actinomycetes and soil urease activity were significantly (P <0.05) higher than the control, soil microbial community structure can be improved, contributing to soil fertility Therefore, the inoculation of 50% conventional amount of Bacillus subtilis 3016 could not only achieve the purpose of high yield of peanut, but also improve the biological characters of soil.