ABSTRACT


César González O.1 y Manuel Rodríguez M.2
 

The effect of different fertilizer formulas on growth and yield of corn was studied.
Using leaf analysis the evolution of these nutrients during the vegetative cycle was investigated. N, S, P, K, Ca and Mg were analyzed in leaves at two positions; the diagnosis was based on standard levels.
Stress was laid on correlations between upper and lower leaves of absolute nutrient content and relative contents of a pair of nutrients (binary relations), at the time of flowering.

Keywords:
1Dr. Ciencias Químicas. Profesor de Química Analítica, Sección Química Vegetal, Depto. de Química Inorgánica y Analítica, Facultad de Ciencias Químicas, Univ. de Chile, Casilla 233, Santiago, Chile.
2Investigador de Química Vegetal.