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不同质地及pH植烟土壤微生物种群差异的研究

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不同质地及pH植烟土壤微生物种群差异的研究(10500字)
摘  要: 为探明不同质地及pH值植烟土壤微生物种群差异,本研究分析测定了福建省武平县不同质地及pH植烟土壤微生物种群数量,结果表明:不同质地及pH植烟土壤主要微生物群落数量存在较为明显的差异,其中不同质地土壤中真菌、放线菌、细菌种群数量差异达到了差异显著水平,而不同pH土壤中真菌、放线菌、细菌数量差异达到了极显著水平。不同质地土壤中真菌数量表现为壤土>粘土>沙土,放线菌和细菌数量表现为壤土>沙土>粘土;不同pH土壤中真菌和细菌数量表现为pH>6.5的最高,5.5≤pH≤6.5其次,pH<5.5最低;而放线菌数量表现为pH<5.5最高,5.5≤pH≤6.5其次,pH>6.5最低。

关键词: 植烟土壤, 质地,pH,土壤微生物
   
Studies on Difference of Microbial Groups in Soil of Different Texture and pH
Abstract: The microbial populations of tobacco soil with different texture and pH value of WuPing county in Fujian province are analyzed in this research, in order to know the value of different texture and pH differences between populations. The results showed that, there is obvious difference different texture and pH value of tobacco soil mainly microbial quantity, in which different texture soil fungi, actinomycetes, bacteria population differences reached a significant difference between levels, and different pH, soil fungi, actinomycetes, bacteria reached a very significant difference in the level. Number of different fungi in the soil texture showed loam> clay> sand, actinomycetes and bacteria showed loam> sand> clay; different pH values of soil fungi and bacteria showed pH> 6.5 the highest, 5.5 ≤ pH ≤ 6.5 Secondly, pH <5.5 minimum; and actinomycetes showed pH <5.5 the highest, 5.5 ≤ pH ≤ 6.5 second, pH> 6.5 the lowest. [版权所有:http://DOC163.com]

Key words: Tobacco soil, Texture, pH, The soil microorganisms

[版权所有:http://DOC163.com]

不同质地及pH植烟土壤微生物种群差异的研究

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