Fig. 6From: Impact of silver nanoparticles (AgNP) on soil microbial community depending on functionalization, concentration, exposure time, and soil textureImpact of the factor combinations exposure time × agent species in a loamy soil. The error bars represent the 95% confidence interval. N = 240. The relative variations (%) were set as dependent variable. The factors were set as independent variable. To calculate the impact of the factor combination exposure time × agent species on the relative variation of the biological parameters, the relative variations were unconnected to the factor concentrationBack to article page