小麦、玉米两熟秸秆还田土壤中6种有机酸对小麦纹枯病的化感作用

赵绪生,齐永志,闫翠梅,甄文超

Allelopathy of Six Organic Acids on Wheat Sheath Blight in the Soil of Winter Wheat-Summer Maize Double Cropping Straw Returning System

ZHAO XuSheng,QI YongZhi,YAN CuiMei,ZHEN WenChao

表2 不同年度土壤乙酸乙酯提取物中检测出的各类有机物质所占比例

Table 2 Proportion of various organic substances detected in ethyl acetate extracts of soil collected in different years (%)

年 Year 酸 Acid 醇 Alcohol 烷烃 Alkanes 酰胺 Amide 醛 Aldehyde 酯 Ester 萘 Naphthalene 烯烃 Olefins 苯酸盐 Benzoate 其他 Others 2012 42.86 15.65 10.96 4.76 5.76 7.63 0.35 5.38 - 15.61 2015 43.11 17.93 27.38 7.28 4.22 0.79 - - - 12.29 2018 50.37 17.65 14.75 6.33 6.33 0.60 - - 3.09 18.78 平均Average 45.45 17.08 17.70 6.12 5.44 3.01 0.35 5.38 3.09 15.56