Fig 3.

Use efficiencies of C (a), N (b), P (c) and dry matter yield (d) in two sugarcane pre-sprouted seedling cultivars (CTC 4 and RB 966928) under three forms of Si supply (Si via nutrient solution [SiR], Si via foliar spraying [SiL], and Si absence [-Si]). ** and *: significant at 1 and 5% probability, respectively; ^ns: non-significant by the F-test. Lowercase letters show differences in Si forms and uppercase letters between cultivars by the Tukey’s test. Bars represent the standard error of the mean; n = 7.