Fig. 3From: New approaches to the effects of Si on sugarcane ratoon under irrigation in Quartzipsamments, Eutrophic Red Oxisol, and Dystrophic Red OxisolEfficiency use of carbon (a, b) and nitrogen (c, d) in leaves and stems of sugarcane plants in two water deficit conditions (presence: 35%, and absence: 70% of water retention) combined with absence (0.0Â mmol Lâ1) and presence of fertigated Si (1.8Â mmol L.â1) in three tropical soils (Quartzarenic Neosol; Eutroferric Red Latosol; and Dystrophic Red Latosol). ** and *: significant at 1% and 5% probability, respectively; NSâ=ânot significant at 5% probability. Different uppercase letters indicate differences in water deficit and different lowercase letters indicate differences in Si fertigation by Tukey test (pâ<â0.05)Back to article page