Fig. 1From: Nanosilica enhances morphogenic and chemical parameters of Megathyrsus maximus grass under conditions of phosphorus deficiency and excess stress in different soilsPhosphorus content and silicon content of Zuri guinea grass cultivated under different phosphorus levels of deficiency (- P), adequacy (P), and excess (+ P) in Oxisol (A, C) and Entisol (B, D) in absence (-Si) and presence of silicon (+ Si, 1.5 mmol L− 1). Ns, *, ** refer to F test not significant, significant at 5 and 1%, respectively. Nutritional states are compared in uppercase letters, and the effect of Si in lowercase letters (Tukey test, p < 0.05). Bars correspond to the standard error of the experiment meanBack to article page