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丛枝菌根真菌和生物炭对番茄幼苗生长和养分吸收的影响
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Abstract:
丛枝菌根真菌(AM真菌)和生物炭(BIO)可以促进植物生长，研究表明，两者之间存在互作关系。为了分析两者对番茄幼苗生长的影响，本文采用盆栽试验，用随机区组设计设置两个生物炭梯度(加入和不加入)、两个AM真菌梯度(接种和不接种)。研究结果表明，接种AM真菌分别使番茄地上部干重、根部干重和地上部磷吸收量提高14.1%、12.8%和12.7%。添加生物炭使番茄幼苗生物量增加6.7%。两者共同施用，分别将生物量、P吸收量和钾吸收量增加20.9%、18.8%和26.1%。在本试验中，生物炭未提高菌根侵染率，两者也未产生互作。总之，菌根和生物炭都能促进番茄生长，而且两者共同加入效果最佳。
Arbuscular mycorrhizal fungi (AMF) and biochar can improve the growth of plants. Research shows there are interactions between them. A pot experiment was conducted to explore the effects of these two materials on tomatoes in this paper. The experiment was arranged in a randomized complete block design with two biochar rates (amended or unamended) and two AMF rates (inoculated or uninoculated). Results showed that AMF increased the shoot dry weight, root dry weight and shoot P uptake of tomatoes by 14.1%, 12.8% and 12.7%, respectively. Biochar increased the shoot dry weight of tomato seedlings by 6.7%. The largest improvement in plant growth was shown in the treatment of co-amendment of these two materials, which improved the biomass, P uptake and K uptake by 20.9%, 18.8% and 26.1%, respectively. In this experiment, biochar did not increase AMF inoculation and no interaction was found between them. In conclusion, both AMF and biochar im-proved the growth of tomatoes and co-amendment of them performed best.
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