Soil nutrient concentrations.

Initial nutrient and organic matter concentrations in greenhouse soil (mean ± SD, n = 3 per greenhouse) used in experiments to assess the impact of environmental and biological stressors on Avena fatua growth. Significant differences across greenhouses are indicated by different letters (P<0.05).

用于评估环境与生物胁迫对野燕麦（Avena fatua）生长影响的实验所用温室土壤的初始养分与有机质含量为（平均值±标准差（Standard Deviation，SD），每个温室设置3个生物学重复）。不同温室间的显著性差异以不同字母标注（P<0.05）。