| 丛枝菌根真菌根外菌丝对紫色土中的氮素利用状况 |
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| 引用本文： | 彭思利,邓胤,张宇亭.丛枝菌根真菌根外菌丝对紫色土中的氮素利用状况[J].中国农学通报,2010,26(6):269-274. |
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| 作者姓名： | 彭思利 邓胤 张宇亭 |
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| 作者单位： | 西南大学资源环境学院,重庆,400716 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 摘 要：本研究采用修改后的Hawkins and George（1999）的装置，并以中性紫色土壤为基质模拟自然生长环境，研究根外菌丝对土壤中的氮素的利用状况。结果表明：接种Glomus intraradices发挥了较好的菌根效应，相对不接种处理，普遍提高了玉米地上部和根系的氮、磷营养状况；根外菌丝能扩大根系对氮素的吸收范围，扩大的吸收范围应不小于5cm；而根外菌丝利用的氮素形态主要是无机态的氮。
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| 关 键 词： | 林地土壤 林地土壤 环境质量评价 重金属元素 内梅罗污染指数 锑矿区 |
| 收稿时间： | 2009-11-04 |
| 修稿时间： | 2009-11-09 |
Research on Nitrogen Utilization in the Neutral Purple Soil by the External Hyphae of Arbuscular Mycorrhiza |
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| Peng Sili,Deng Yin,Zhang Yuting.Research on Nitrogen Utilization in the Neutral Purple Soil by the External Hyphae of Arbuscular Mycorrhiza[J].Chinese Agricultural Science Bulletin,2010,26(6):269-274. |
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| Authors: | Peng Sili Deng Yin Zhang Yuting |
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| Institution: | Peng Sili,Deng Yin,Zhang Yuting (College of Resources , Environment,Southwest University,Chongqing 400716) |
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| Abstract: | To investigate the Nitrogen Utilization in the neutral purple soil by the external hyphae of arbuscular mycorrhiza (AM), the modified Hawkins and George (1999) devices was used to simulate a natural growing environment, made the soil as the substance, and as far as possible to eliminate the interference of phosphorus. The results showed that inoculation withGlomus intraradices increased both of the nitrogen and phosphorus status in the maize shoot and root, and played a good role. The external hyphae of arb... |
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| Keywords: | arbuscular mycorrhizal fungi external hyphae nitrogen utilization |
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