Abstract

ROMERO-LOZADA, MARÍA DEL PILAR; PUENTES-PARAMO, YINA JAZBLEIDI  and  MENJIVAR-FLORES, JUAN CARLOS. Extraction of mineral nutrients in pepper ( Capsicum sp.) leaves and fruits and its influence on yield. rev.colomb.cienc.hortic. [online]. 2017, vol.11, n.1, pp.114-121. ISSN 2011-2173.  https://doi.org/10.17584/rcch.2017v11i1.5809.

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, P2O5: 100 and K2O: 300), CEUNP + 50% and CEUNP + 100% of N-P-K. The analysis of variance showed highly significant differences (P≤0.01) 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.

Keywords : Capsicum frutescens; Capsicum chinense J.; efficient fertilization; nutrients.

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