苎麻根际和非根际环境的土壤比较研究

Comparison of Diversity between Rhizosphere Soil and Non-rhizosphere Soil of Ramie

以6个不同苎麻品种地的土壤为材料,研究了根际和非根际环境的土壤养分、微生物数量、酶活性、pH值及其相关关系。结果表明,根际土壤中大部分的土壤养分、微生物数量、酶活性高于非根际土壤;相关性分析显示,非根际环境中达到显著相关的因子比根际土壤中多。

The dynamic property of soil nutrients,soil microbes,soil enzyme and pH in ramie rhizosphere soil and non-rhizosphere soil collected from producing areas of 6 ramie varieties was studied.And the relationship between them was discussed.The results showed that the content of available N,available K,organic matter,total K and water,the numbers of soil bacteria,actinomyces and fungi,the activities of urease and acid phosphatase in rhizosphere soils were all significantly higher than those of non-rhizosphere.Meanwhile,there was significant difference in pH between rhizosphere soil and non-rhizosphere soil.The correlations among soil nutrients,soil microbes,soil enzyme and pH in rhizosphere soil were more significant than that in non-rhizosphere soil.It was hypothesized that the ramie root brought about the differences between the rhizosphere soil and non-rhizosphere soil.