氮磷比对大豆生物学性状和根系分泌有机酸量的影响

苗淑杰; 乔云发; 刘晓冰

doi:10.3724/SP.J.1011.2011.00593

氮磷比对大豆生物学性状和根系分泌有机酸量的影响

1.
农业部油料作物生物学重点开放实验室武汉 430062; 中国科学院东北地理与农业生态研究所哈尔滨 150081
2.
中国科学院东北地理与农业生态研究所哈尔滨 150081

基金项目: 农业部油料作物生物学重点开放实验室开放课题(201009)、黑龙江省青年科学基金(QC2009C59)、中国科学院青年人才项目(KZCX2-EW-QN306)和中国科学院东北地理与农业生态研究所青年博士基金项目资助

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出版历程
- 收稿日期: 2010-10-09
- 修回日期: 2010-12-08
- 刊出日期: 2011-04-30

Effect of nitrogen/phosphorus ratio on biological characteristics and organic acid exudation in soybean roots

1.
Key Laboratory for Oil Crops Genetic Improvement, Ministry of Agriculture, Wuhan 430062, China; Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Harbin 150081, China
2.
Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Harbin 150081, China

摘要

摘要: 为阐明生长介质中的氮磷条件对大豆生长和根系分泌有机酸的影响, 采用沙培培养方法, 设计3 种不同的氮磷配比, 分析不同氮磷条件下大豆生物量积累和结瘤情况, 利用高效液相色谱分析根系分泌的有机酸, 探讨根系分泌有机酸的变化情况。结果表明, 在大豆苗期, 适当减少磷肥施用量不影响生物量积累, 但需要充足的氮才能保证结瘤性状。低磷促进大豆根系分泌有机酸, 高氮对低磷处理有机酸分泌有促进作用, 说明磷和氮对大豆根系分泌有机酸存在负交互作用。
- 氮磷比 /
- 大豆根系 /
- 生物学性状 /
- 生物量 /
- 高效液相色谱 /
- 有机酸 /
- 结瘤
Abstract: Three nitrogen/phosphorus ratios were designed in a sand culture test to analyze the effect of nitrogen/phosphorus ratio on the biological characteristics and organic acid exudation in the roots of soybean. Biomass and nodulation were investigated and organic acid exudation from the roots of soybean was measured with a high performance liquid chromatography. Results showed that at seedling stage, biomass accumulation in soybean was not affected by phosphorus. Suitable nitrogen levels were needed to maintain efficient nodulation. Low phosphorus increased organic acid exudation by the roots of soybean, which was promoted by high nitrogen content. With regards to root organic acid exudation, a negative interaction was noted between nitrogen and phosphorus.
- Ratio of nitrogen and phosphorus /
- Soybean root /
- Biological characteristics /
- Biomass /
- High performance liquid chromatography /
- Organic acid /
- Nodulation

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参考文献(16)

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氮磷比对大豆生物学性状和根系分泌有机酸量的影响

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出版历程

Effect of nitrogen/phosphorus ratio on biological characteristics and organic acid exudation in soybean roots

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