Figure 4.

Comparative analysis of the top 20 species phyla and genera with significant differences between different treatments. (A) Differences at phylum level between LK and HK. (B) Differences at phylum level between LK and MK. (C) Differences at genus level between LK and HK. (D) Differences at genus level between MK and HK. (E) Differences at genus level between MK and LK. Only significant differences are shown (P< 0.05); LK, Low amount of K₂SO₄; MK, Middle amount of K₂SO₄; HK, High amount of K₂SO₄.