Nutrient contents and fertirrigation in camu camu (Myrciaria dubia (Kunth) McVaugh) crop with different nitrogen doses

Camu-camu (Myrciaria dubia (Kunth) McVaugh) is a native fruit tree, which is in domestication process, therefore, knowledge of nutritional needs is essential to improve the fertilization efficiency throughout plant development. The aim of this research was to determine the nutrient content of camu-camu plants as a function of nitrogen fertilization via fertirrigation in the first year of cultivation. An experiment was carried out in a randomized complete block design, with 5 treatments as follows: 0; 40; 80; 120 and 160 kg.ha-1 of N, eight replicates and seven plants per experimental unit. The evaluated variables were as follows: total dry mass and nutrient contents in camu-camu leaves. The results show the total dry mass of camu-camu plants, showed a significant quadratic behavior in response to increasing N doses and N doses greater than 128 kg.ha-1 aroused a depressive effects. In addition, leaf contents of N, K, Ca had achieved a significant quadratic response and highest concentrations were recorded between 113 and 115 kg of N.ha-1. On the other hand, micronutrients had a polynomial depressive behavior according to an increasing N doses. It can be concluded that nutrient foliar contents are adequate for the camu-camu plants development. In fact, N, Ca, K, Fe, Mn and B, were the most required nutrients. Micronutrients determined in leaves, corresponded to the following decreasing order: N Ca K Mg S P Mn Fe B Zn Cu, respectively.

• Autores: Abanto Rodriguez, Carlos; Alves Chagas, Edvan; Da Silva Siqueira, Raphael Henrique; Farias Araújo, Wellington; Carvalho Zborowski, Luiz Guilherme; Pinho Souza, Caio César; Tadashi Sakasaki, Roberto; Lopes Monteiro Neto, João Luiz; Sánchez-Choy, José
• Tipo de recurso: Article of journal
• Fecha de publicación: 2018
• Institución: Universidad Nacional de Colombia
• Repositorio: Universidad Nacional de Colombia
• Idioma: spa
• OAI Identifier: oai:repositorio.unal.edu.co:unal/68134
• Acceso en línea: https://repositorio.unal.edu.co/handle/unal/68134; http://bdigital.unal.edu.co/69167/
• Palabra clave: 55 Ciencias de la tierra / Earth sciences and geology; 63 Agricultura y tecnologías relacionadas / Agriculture; Massa seca; micronutrientes; nutrição foliar; equilíbrio de nutrientes (plantas); desenvolvimento de plantas; nutrição vegetal; Materia seca; nutrición foliar; micronutrientes; balance de nutrientes (plantas); desarrollo de plantas; nutrición de plantas.; Dry mass; foliar nutrition; micronutrients; nutrient balance (plants); plant development; plant nutrition
• Rights: openAccess
• License: Atribución-NoComercial 4.0 Internacional