Fig. 2From: Soil microbial communities following 20 years of fertilization and crop rotation practices in the Czech RepublicShannon and Simpson diversity indices calculated from prokaryotic (a) and fungal (b) sequence data according to different fertilization and crop rotation treatments; (fertilizer): control (CF), cow manure (MF, 330 kg N/ha), NPK (NPK, 330–90-330 kg/ha), sewage sludge (SF, 330 kg N/ha), sewage sludge (SF3x, 990 kg N/ha); (crop): Section A (after potato), Section B (wheat), Section C (after barley)Back to article page