结球甘蓝根区土壤有机物GC-MS分析  

GC-MS Analysis of Rhizosphere Soil Organic Compounds of Cabbage Field

作　　者：张伟[1] 赵瑞芬 姜春霞[1] 翟广谦[1] 刘恩科[1] ZHANG Wei;ZHAO Ruifen;JIANG Chunxia;ZHAI Guangqian;LIU Enke(Research Center of Dryland Agriculture,Shanxi Academy of Agricultural Sciences,Taiyuan 030031,China;Institute of Agricultural Environment and Resources,Shanxi Academy of Agricultural Sciences,Taiyuan 030031,China)

机构地区：[1]山西省农业科学院旱地农业研究中心,山西太原030031 [2]山西省农业科学院农业环境与资源研究所,山西太原030031

出　　处：《山西农业科学》2018年第8期1334-1337,1381,共5页Journal of Shanxi Agricultural Sciences

基　　金：山西省重点研发计划重点项目(201703D211002-7);山西省农业科学院特色农业技术攻关项目(YGG17038);中央引导地方科技发展专项(2017GA630001)

摘　　要：对轮作和2 a连作条件下结球甘蓝收获期根区土壤溶液进行GC-MS测定,研究结球甘蓝根系分泌物的自毒物质。结果表明,轮作和连作处理比对照均增加了N-乙基乙酰胺、N,N-二乙基甲酰胺和N-乙基异丙胺;连作处理中硬脂酸相对含量为4.24%,是轮作处理中硬脂酸相对含量的10.3倍。To identify the cabbage root secreted auto-toxicity compounds under continues cropping, soil solutions from crop rotation field and two years continuous cropping field during harvest stage were analyzed by the GC-MS. The result showed that some compounds were found in crop rotation field and two years continuous cropping field, they were N-ethyl Acetamide, N, N-Dimethylformamide and N-Ethylisopropylamine. The relative content of octadecanoic acid in two years continuous cropping field was 4.24%, which was 10.3 times of the relative content of octadecanoic acid in crop rotation field.

关 键 词：结球甘蓝 连作 土壤有机物 GC-MS分析 

分 类 号：S635.1[农业科学—蔬菜学]