J. Mabry McCray and Ronald W. RiceIntroductionThis publication is intended primarily for Florida sugarcane (Saccharum spp.) growers, but it may also be useful to researchers and others interested in sugarcane nutrition. For any crop to grow and remain healthy, certain elements (nutrients) must be made available to the plants from the soil and/or air. The “essential” elements include C, H, O, N, P, K, Ca, Mg, S, B, Cl, Cu, Fe, Mn, Mo, Zn, and Ni. In Florida and some other areas of the world, application of Si may markedly enhance sugarcane production. This element qualifies as a “functional” or “beneficial” nutrient because, in the absence of Si, the plant can still complete its life cycle; however, production and general vigor may be reduced. In the Florida sugarcane industry, elements that are of nutritional concern include N, P, K, Mg, Si, B, Cu, Fe, Mn, and Zn. Deficiency or excess of one or more of the above elements may limit yields. An excess of one element may cause a deficiency...
