Fig. 6
Effect of nitrogenous fertilizers and effective microorganisms on available nitrogen (a), phosphorus (b), and potassium (c) of soil after harvest during two growing seasons (2018–19). Ch-N chemical nitrogenous fertilizer, Org-N organic nitrogenous fertilizer, EM effective microorganisms. Each value expressed in figure is mean of two cuttings. Vertical bars indicate mean ± standard deviation. Means followed by the same letter within the same series are not significantly different according to Fisher’s least significant difference (LSD) technique (p ≤ 0.05)