| Effects of Trichoderma harzianum on microorganisms and enzymatic activities in rhizosphere soil during rice seedling stage |
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| DOI：10.7606/j.issn.1000-7601.2013.04.031 |
| Key Words: Trichoderma harzianum rice soil microorganism soil enzymatic activity |
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| Abstract: |
| The role of Trichoderma harzianum in regulating soil enzymatic activities and soil microbial community were studied by using a pot seeding experiment. The results showed that T. harzianum could effectively regulated soil microbial community in rhizosphere soil during rice seedling stage, however, it produced different effects on bacteria, fungi and actinomycete. In the 28th day after sowing, the amount of bacteria and actinomycete under inoculation treatment was increased by 50.70% and 48.56%, respectively, but the amount of fungi was reduced by 16.15%, compared with those under control; moreover, the amount of T. harzianum under inoculation treatment was 138.46% more than that in the sowing day. T. harzianum could also improve the activities of urease, ph
osphatase and invertase, which were increased by 8.55%, 18.31% and 49.61%, respectively, under inoculation treatment. These results showed that T. harzianum had the ability to improve soil micro-ecological environment. |
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