化感物质对土壤硝化反应影响的研究  

Effect of Allelochemicals on Nitrification in Soil

作　　者：黄益宗[1] 冯宗炜[1] 张福珠[1] 

机构地区：[1]中国科学院生态环境研究中心,北京100080

出　　处：《土壤与环境》1999年第3期203-207,共5页Soil and Environmental Sciences

基　　金：国家自然科学基金!39790100

摘　　要：研究了4种化感物质对土壤硝化反应的影响。试验结果表明，化感物质能减少NH4＋向NO3－氧化，且高浓度比低浓度效果显著。4种化感物质的硝化抑制顺序为：阿魏酸＞对叔丁基苯甲酸＞对羟基苯甲酸＞苯甲酸。不同的温度和肥料可影响化感物质的硝化抑制作用。The effects of four allelochemicals on nitrification in soil have been determined in this paper. Results show that allelochemricals can inhibit oxidization of NH4+ to NO3-, and the inhibiting effects increase with concentration. The average effectiveness of these allelochemicals for inhibiting nitrification decrease in the order: trans-ferulic acid > p-tert-benzoic acid > p-hydroxybenzoic acid > benzoic acid. Also, the inhibiting effects are affected by different temperature and nitrogen fertilizers.

关 键 词：化感物质 硝化反应 抑制作用 土壤微生物 

分 类 号：X13[环境科学与工程—环境科学] S153.61[农业科学—土壤学]