Fig. 2From: Linuron effects on microbiological characteristics of sandy soils as determined in a pot studyChanges in nitrate and ammonium concentrations in LS and SL soils treated with linuron at different dosages (mg kg−1 soil): C 0 (control soil), D1 4, D2 20, D3 400. The values are the means ± standard deviations. For each soil, means with different letter(s) are significantly different at P < 0.05. LSD Least significant difference (n = 3)Back to article page