草地学报

›› 2001, Vol. 9 ›› Issue (2): 154-158.DOI: 10.11733/j.issn.1007-0435.2001.02.015

• 研究论文 • 上一篇    

VA菌根对白三叶吸收水分和养分的影响

毕银丽1, 丁保建2, 全文智3, 李晓林2   

  1. 1. 中国矿业大学北京校区, 北京, 100083;
    2. 中国农业大学植物营养系, 北京, 100094;
    3. 宏日草业, 北京, 100094
  • 收稿日期:2000-06-29 修回日期:2000-11-05 出版日期:2001-05-15 发布日期:2001-05-15
  • 作者简介:毕银丽(1971- ),女,现为中国矿业大学北京校区资源开发工程系,测量与土地科学教研室大地测量学与测量工程专业博士后,已发表论文12篇
  • 基金资助:
    中国博士后基金及国家重点基础研究发展规划项目(G1999011807)资助

Influence of VA Mycorrhize on Nutrient and Water Absorption in White Clover

BI Yin-li1, DING Bao-jian2, QUAN Wen-zhi3, LI Xiao-lin 2   

  1. 1. China University of Mining and Technology, Beijing 100083, China;
    2. Department of Plant Nutrient,China Agricultural University, Beijing 100094, China;
    3. Hong Ri Group, Beijing 10009
  • Received:2000-06-29 Revised:2000-11-05 Online:2001-05-15 Published:2001-05-15

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摘要： 采用土培试验,研究水分胁迫条件下,施磷肥接种VA菌根菌对白三叶的生长,养分吸收和水分利用的影响.结果表明,土壤干旱严重则抑制地上部和根系的生长,影响植株吸收养分,降低水分利用率.随着施磷量的提高,该状况则得以缓解.在水分胁迫和正常供水条件下,施磷量相同,接种菌根组的地上和根系生物量干重显著高于不接种组,干物质累积增加,减轻水分胁迫对植株生长的抑制程度,改善了植株体内磷素养分状况,提高了白三叶对土壤磷的有效利用及水分利用率.

关键词: VA菌根菌, 白三叶, 水分胁迫, 养分吸收, 水分利用效率

Abstract: Acquisition of nutrient and water by VA mycorrhizae under water stress and application different P lever were studied by soil culture experiment. The results showed that water stress can greatly restrain plant shoot and root growth,decrease plant nutrient absorption and water utillization.VA mycorrhizae could enhance plant dry weight and improve plant P concentration,as well as increase the resistance to drought and water utilization efficiency under water stress and normal water supply at the same P application level.

Key words: VA mycorrhizae, White clover, Water stress, Water utilization efficiency

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