Fig. 2From: Exogenously applied nitrogenous fertilizers and effective microorganisms improve plant growth of stevia (Stevia rebaudiana Bertoni) and soil fertilityEffect of nitrogenous fertilizers and effective microorganisms on leaf nitrogen (a), phosphorus (b) and potassium (c) of stevia 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)Back to article page