“Extracción de nutrientes de clones productivos de cacao (theobroma cacao L.) establecidos bajo un sistema tradicional en la banda de Shilcayo-Tarapoto

• Autor: Ruiz Ramirez, Jesús
• Formato: tesis de grado
• Fecha de Publicación: 2015
• Institución: Universidad Nacional de San Martin - Tarapoto
• Repositorio: UNSM-Institucional
• Lenguaje: español
• OAI Identifier: oai:repositorio.unsm.edu.pe:11458/667
• Enlace del recurso: http://hdl.handle.net/11458/667
• Nivel de acceso: acceso abierto
• Materia: Extracción; nutrientes; clones; productivos; cacao; theobroma; establecidos; bajo; un; sistema; tradicional; banda; Shilcayo; Tarapoto

In the experimental station "Juan Bernito" Tropical Crops lnstitute (ICT), located in the district of Shilcayo province and department of San Martin (Peru); Nutrient removal productive clones of cacao (Theobroma cacao L.) established under a traditional system was evaluated. The experimental design was randomized complete block with three treatments and three repetitions; the treatments were the following clones: CCN-51 (T1), ICS-1 (T2) and ICS-6 (T3). The concentration of N on the stem; K in root, stem and leaves; Ca at the root; Mg in roots and stems; of Sin the stem; Zn in the root; Fe in the stem; at the root of B they showed high significant differences (P <0.01); Also, the Pin root and stem; Cu at the root of Mn in root and stem, showed significant differences (P <0.05) and the other components of the plant nutrients in question did not show significant differences (P> 0.05). The concentration of N, P, Ca, Mg, S, Zn, Cu, Mn, Fe and B were not significantly different in cherelles fruits; however, the K showed highly significant difference (P <0.01). The concentration of P, K, Ca, Mg, S, Zn, Cu, Mn, Fe and B showed no significant difference (P> 0.05) in the seed, and fruit peel placenta; instead of N in the seed showed significant differences (P <0.05). Seed yield of the three clones studied showed no significant difference. The macro and micronutrient that greater amount was extracted was the N and Zn, respectively; 1000 kg of dry seed in the clones studied. Keywords: Concentration of nutrient, removal, nutrition, macronutrients, micronutrients