Title
Camu-camu root distribution under different nitrogen and potassium doses through drip fertigation
Date Issued
01 April 2019
Access level
open access
Resource Type
journal article
Author(s)
Melo V.F.
Chagas E.A.
Siqueira R.H.d.S.
Souza O.M.d.
Almeida L.F.P.d.
Rossoni D.F.
Chagas P.C.
Publisher(s)
American Society for Horticultural Science
Abstract
Camu-camu is an native species in domestication processes. Therefore, studies related to the root system are necessary to evaluate the best cultivation practices for an orchard. Two trials were conducted, one with nitrogen (N) and the other with potassium(K), at doses of 0, 40, 80, 160, and 320 kg·ha-1. Root distribution was determined using nondestructive analyses in which two-dimensional (2D) root images were obtained from trenches under the plants’ canopy. Variables included width (measured in cubic millimeters), area (measured in square millimeters), and length (measured in millimeters, and were analyzed using Safira software (version 2010, Embrapa, Brazil). To have better spatial visualization of variable distribution in the soil profile, data were analyzed using the ordinary kriging technique with the geoR software package and R software (version 2016). Both N andKdoses influenced positively the camu-camu root system with regard to length, volume, and area. Better root distribution was verified with 80 kg·ha-1 N and 160 kg·ha-1 K doses. The nondestructive analysis via 2D images allowed sound characterization of root spatial distribution.
Start page
748
End page
743
Volume
54
Issue
4
Language
English
OCDE Knowledge area
Horticultura, Viticultura
Subjects
Scopus EID
2-s2.0-85070285948
Source
HortScience
ISSN of the container
0018-5345
Sponsor(s)
Received for publication 8 Aug. 2018. Accepted for publication 17 Dec. 2018. This study was financed in part by the Coordenaxcão de Aperfeixcoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code (Pró-Amazônia-Process 23038.000715/2013-63) and the National Council for Scientific and Technological Development – CNPq. We thank Prof. Dr. Carla Eloize Carducci of the Federal University of Grande Dourados (UFGD) for contributions to the best treatment of the data. 1Corresponding author. E-mail: valdinar@yahoo. com.br.
This study was financed in part by the Coordenacx?o de Aperfeicxoamento de Pessoal de N?vel Superior - Brasil (CAPES) - Finance Code (Pr?-Amaz?nia-Process 23038.000715/2013-63) and the National Council for Scientific and Technological Development - CNPq. Wethank Prof.Dr.Carla Eloize Carducci of the Federal University of Grande Dourados (UFGD) for contributions to the best treatment of the data.
Brazilian Corporation of Agricultural Research (Embrapa), Rodovia, BR 174, Km 8, Distrito Industrial, Caixa Postal: 133, CEP: 69301-970, Boa Vista/RR, Brazil (Productivity Research Scholarship – CNPq)
Sources of information:
Directorio de Producción Científica
Scopus