• ISSN 1008-505X
  • CN 11-3996/S
宋勇春, 冯固, 李晓林. 丛枝菌根真菌对红三叶草利用不同有机磷源的研究[J]. 植物营养与肥料学报, 2001, 7(4): 452-458. DOI: 10.11674/zwyf.2001.0416
引用本文: 宋勇春, 冯固, 李晓林. 丛枝菌根真菌对红三叶草利用不同有机磷源的研究[J]. 植物营养与肥料学报, 2001, 7(4): 452-458. DOI: 10.11674/zwyf.2001.0416
SONG Yong chun, FENG Gu, LI Xiao lin. Effect of inoculated AMF on red clover in utilizing organic phosphorus[J]. Journal of Plant Nutrition and Fertilizers, 2001, 7(4): 452-458. DOI: 10.11674/zwyf.2001.0416
Citation: SONG Yong chun, FENG Gu, LI Xiao lin. Effect of inoculated AMF on red clover in utilizing organic phosphorus[J]. Journal of Plant Nutrition and Fertilizers, 2001, 7(4): 452-458. DOI: 10.11674/zwyf.2001.0416

丛枝菌根真菌对红三叶草利用不同有机磷源的研究

Effect of inoculated AMF on red clover in utilizing organic phosphorus

  • 摘要: 以红三叶草为材料 ,利用三室隔网培养方法 ,施用不同有机磷源 :植酸钠 (Na -Phytate)、核糖核酸 (RNA)和卵磷脂 (Lecithin) ,研究接种菌根真菌Glmous versiforme对土壤及外加有机磷源的利用效率 ,另设无机磷及不施磷作为对照。结果表明 ,接种菌根真菌能明显增加植株干物重、含磷量和吸磷总量。与各有机磷处理相比 ,无机磷处理前期的生长效应较好 ,施用有机磷各处理在不同生长时期均明显促进了植株生长 ,但不同有机磷源之间没有显著差异。在植株吸磷量上 ,植株生长 7周以前 ,磷酸二氢钾处理高于其它处理 ,而植株生长 10周时 ,植酸钠处理高于磷酸二氢钾处理。接种菌根处理由于丛枝菌根活化了土壤有机磷 ,到植株生长 10周时其吸收有机磷的量已占吸磷总量的 76 .7%。

     

    Abstract: In order to study the role of AMF(Arbuscular Mycorrhizal Fungus) hyphae in absorbing phosphorus from organic phosphorus sources, a pot experiment was carried out under controlled conditions. The pot consists of three compartments. The root compartment was separated from the hyphal compartment by a nylon net with 30 m mesh . Red clover were grown in the root compartments inoculated or uninoculated with AM fungus Glmous versiforme. Different organic phosphorus sources were added uniformly in the hyphae compartments except for the control treatments in which no phosphorus was added. The results showed that mycorrizal infection significantly increased phosphorus uptake of red clover from different phosphorus sources and growth of plants. Inorganic phosphorus (KH2PO4) had better effect on growth of plants than organic phosphorus, but no significant differences lie in all inoculated treatments. The results obtained clearly demonstrated that efficiency of AM hyphal in utilisation of organic phosphorus by red clover. Plants inoculated with AMF were effective in the hydrolysis of organic phosphorus and confirmed the important direct contribution of AM hyphae to plant P nutrition.

     

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