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La investigacion tuvo como objetivo determinar la extraccion y distribucion de nitrogeno (N), fosforo (P) y potasio (K) en hojas y frutos, de dos especies de aji: Capsicum frutescens L. (tipo Tabasco) y Capsicum chinense J. (tipo Habanero), y su influencia en el rendimiento. El diseno incluyo los cuatro tratamientos: Testigo, programa de fertilizacion que maneja el Centro Experimental de la Universidad Nacional de Colombia, sede Palmira (CEUNP) (N: 150, P2 O5 : 100 y K2 O: 300), CEUNP + 50% y CEUNP + 100% de N-P-K. El analisis de varianza mostro diferencias altamente significativas (P0,01) en la concentracion de nutrientes N-P-K en fruto y hoja para los dos tipos de aji; asi, la mayor concentracion de N se encontro en hojas y de K en frutos, coincidiendo con menor concentracion de P para hojas y frutos. Habanero presento el mayor rendimiento (23.807 kg ha-1), como tambien, la mayor extraccion de N-P-K por tonelada de fruto fresco. Ambas especies de aji guardan la misma preferencia de concentracion de nutrientes en hoja: N>K>P y fruto: K>N>P, sin embargo, es evidente la diferencia que existe en concentracion y extraccion de nutrientes, como tambien en el rendimiento, lo cual sugiere la influencia del genotipo y por tanto, conveniente realizar un diagnostico y manejo nutricional especifico para cada especie de aji. Palabras clave: Capsicum frutescens, Capsicum chinense, fertilizacion eficiente, nutrientes. ABSTRACT This research aimed to determine the extraction and distribution of nitrogen (N), phosphorus (P) and potassium (K) in leaves and fruits, for two species of pepper: Capsicum frutescens L. (type Tabasco) and Capsicum chinense J. (type Habanero), and their influence on yield. The experiment design included four treatments: Control, fertilization program of the Experimental Center of the National University of Colombia, located in Palmira (CEUNP) (N: 150, P2 O5 : 100 and K2 O: 300), CEUNP + 50% and CEUNP + 100% of N-P-K. The analysis of variance showed highly significant differences (P0.01) in the nutrient N-P-K concentration in the fruits and leaves for the two species of pepper. The highest concentration of N was found in the leaves and the highest K in the fruits, coinciding with the lowest concentration of P in the leaves and fruits. Habanero presented the highest yield (23,807 kg ha-1), as well as the highest N-P-K extraction per ton of fresh fruit. Both types of pepper had the same preference for nutrient concentration in the leaves: N>K>P and fruit: K>N>P; however, a difference was evident in the concentration and extraction of nutrients, as well as in the yield, suggesting the influence of the genotype. Therefore, a specific nutritional diagnosis and management for each species of pepper would be appropriate. Key words: Capsicum frutescens, Capsicum chinense J., efficient fertilization, nutrients.

Extracción y distribución de nutrientes minerales en hojas y frutos de ají (<i>Capsicum</i> sp.) y su influencia en el rendimiento