| 不同氮磷水平条件下接种AMF对玉米生长的影响 |
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| 引用本文： | 邓胤,罗文倩,朱金山,宫春明,高润霞. 不同氮磷水平条件下接种AMF对玉米生长的影响[J]. 勤云标准版测试, 2008, 0(12) |
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| 作者姓名： | 邓胤 罗文倩 朱金山 宫春明 高润霞 |
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| 作者单位： | [1]西南大学资源环境学院,重庆400715 [2]重庆市地质矿产研究院,重庆400023 |
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| 基金项目： | 国家自然科学基金"丛枝菌根真菌侵染影响土壤结构作用与机制研究" , 西南大学科研启动基金"丛枝菌根氮素利用的机理研究" ? |
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| 摘 要： | 以珍珠岩为培养基质的半液培实验比较研究了不同氮磷水平营养液对接种丛枝菌根真菌玉米的影响.研究表明:菌根真菌侵染率随着外界氮、磷浓度的升高而下降.高浓度或低浓度的外界氮或磷存在时.接种丛枝菌根真菌对植物营养无贡献.在正常的供氮(2 tool/L)和供磷(0.1 moUL)条件下,接种处理显著提高了植株生物量、磷含量.但对氮含量影响不大,菌根对玉米磷素营养的改善大于氮素.
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| 关 键 词： | 丛枝茵根真菌 侵染率 供氮水平 供磷水平 氮磷比 |
Effects of AMF on Growth of Maize under different N and P supply levels |
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| DENG yin,LUO Wen-Qian,ZHU Jin-Shan,GONG Chun-Ming,GAO Run-Xia. Effects of AMF on Growth of Maize under different N and P supply levels[J]. , 2008, 0(12) |
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| Authors: | DENG yin LUO Wen-Qian ZHU Jin-Shan GONG Chun-Ming GAO Run-Xia |
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| Abstract: | The experiment used a perlite and drip-irrigation system to compared the effects of arbuscular mycorrhizal fungi on maize under different N and P supply levels.Research showed that:The arbuscular mycorrhizal colonization rate declined while the N and P supply levels was increasing,and AMF was no contribution to plant nutrition when the presence of high or low nitrogen or phosphorus levels.Inoculation significantly increased the plant biomass and P concentration under medial supply levels(N:2 mol/L,P:0.1 mol/L),but there was little effect on N concentration.Wherefore,The arbuscular mycorrhizal improved phosphorus nutrition on maize more than nitrogen. |
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| Keywords: | arbuscular mycorrhizal fungi colonization rate N supply levels P supply levels N/P ratio |
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