中国生态农业学报2011，Vol.19Issue(3)：593-596,4.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
Effect of nitrogen/phosphorus ratio on biological characteristics and organic acid exudation in soybean roots
摘要
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 interacfon was noted between nitrogen and phosphorus.关键词
氮磷比/大豆根系/生物学性状/生物量/高效液相色谱/有机酸/结瘤分类
园艺学与植物营养学引用本文复制引用
苗淑杰,乔云发,刘晓冰..氮磷比对大豆生物学性状和根系分泌有机酸量的影响[J].中国生态农业学报,2011,19(3):593-596,4.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 （201009）
