Title
Nutrient contents and fertirrigation in camu camu (Myrciaria dubia (Kunth) McVaugh) crop with different nitrogen doses
Date Issued
01 January 2018
Access level
open access
Resource Type
journal article
Author(s)
Chagas E.A.
Da Silva Siqueira R.H.
Araújo W.F.
Zborowski L.G.C.
Souza C.C.P.
Sakasaki R.T.
Neto J.L.L.M.
Publisher(s)
Universidad Nacional de Colombia
Abstract
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 matter and nutrient contents in camu-camu leaves. The results show total dry matter of camu-camu plants, which were performed a significant quadratic behavior in response to increasing N doses. In Fact, N doses greater than 128 kg.ha-1 aroused a depressive effects. In addition, leaf contents of N, K, and 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.
Volume
67
Issue
1
Language
English
OCDE Knowledge area
Agronomía
Subjects
Scopus EID
2-s2.0-85039799098
Source
Acta Agronomica
ISSN of the container
01202812
Sources of information:
Directorio de Producción Científica
Scopus