Fig. 2From: Effects of calcium cyanamide on Collembola in a standardized field test: Part 1. Rationale and performance of the studyMean and SD (standard deviation) for total abundance of Collembola in pitfall traps. Sampling days relative to first application (relative to second in brackets). *1 significant difference to untreated control, 2* significant difference to fertiliser control (Williams test, one-sided, α = 0.05)Back to article page