Potential nutrient-response curves and sufficiency ranges of ‘Grande Naine’ banana cultivated in two environment

Abstract Adequate plant nutrition is essential to attain higher yields. The objective was determine potential-nutrient response curves and sufficiency ranges using the boundary line approach balance indices of Kenworthy for interpreting nutritional status ‘Grand Nain’ banana cultivated in two environments. study carried out a database containing leaf nutrient concentrations yields bananas on areas located Missão Velha-CE, Ponto Novo-BA, Brazil. Plots with high-yielding plants, which were those above average plus 0.5 standard deviation, used atem as reference population. subdivided into sets. One them contained 46 tissue samples population yield greater than 58.84 Mg ha-1 year-1, Velha-CE. second data set 19 76.12 year-1 Novo-BA. Potential fitted relationship between relative element Kenworthy. Models expressed high predictive power. Sufficiency macro- micronutrient established. allow an improved assessment irrigated bananas.