Title
Nutritional contents in Myrciaria dubia plants in function of in Potassium doses applied through fertigation
Other title
Contenido de nutrientes en plantas de Myrciaria dubia en función de dosis de potasio aplicadas por fertirrigación
Date Issued
01 January 2020
Access level
open access
Resource Type
journal article
Author(s)
Chagas E.A.
Araújo W.F.
Paulichi M.G.
de Lima J.V.G.
de Oliveira E.M.
Neto J.L.L.M.
da Silva Maia S.
Publisher(s)
Universidad Nacional de Colombia
Abstract
The objective in this study was to determine the nutrient contents in Myrciaria dubia plants in function of five K2O doses (0, 40, 80, 120 and 160 kg ha-1) applied through fertigation. Leaf dry matter (LDM), total dry matter (TDM), and leaf nutrient contents were evaluated. The LDM and TDM were higher in plants subjected to the dose of 160 kg ha-1 of K2O, with 52.44 g and 302.69 g, respectively. Leaf N and K contents were 22.15 and 9.48 g kg-1 in response to 160 kg ha-1 of K2O. The mean P, Ca and S contents were 1.6, 17.89 and 1.61 g kg-1, respectively, and the content of Mg2 + decreased from 5.62 to 2.74 g kg-1 at the dose of 0 and 160 kg ha-1 of K2O, respectively. The B, Mn and Fe contents decreased from 136.5 to 100.0, 346.24 to 248, and from 142.06 to 97.35 mg kg-1 at the dose of 0 and 160 kg ha-1 of K2O, respectively. The mean Cu and Zn contents were 3.81 and 40,54 mg kg-1, respectively, at the K2O doses. The nutrient content determined in the leaves of M. dubia were adequate for the development of the species in the first year of cultivation, presenting the following decreasing order: N> Ca> K> Mg> P = S> Mn> B> Fe > Zn> Cu.
Start page
291
End page
298
Volume
68
Issue
4
Language
English
OCDE Knowledge area
Agronomía
Horticultura, Viticultura
Subjects
Publication version
Version of Record
Scopus EID
2-s2.0-85086365211
Source
Acta Agronomica
ISSN of the container
0120-2812
Sponsor(s)
The authors express their thanks to the Coordination of the improvement of personnel of higher level-CAPES, to National Council for Scientific and Technological Development-CNPq and the Brazilian Agricultural Research Corporation-Embrapa-Roraima, by economic funding for the research development and also to Universidade Federal de Roraima-Brazil, by the valuable support in the academic formation of the first author.
Sources of information:
Directorio de Producción Científica
Scopus