Nitrogen fertilization in consecutive cycles and its impact on high-density peach crops

Authors

  • Letícia Vanni Ferreira Embrapa Clima Temperado, Rodovia BR-392, Km 78, Caixa Postal 403, CEP 96001-971 Pelotas, RS.
  • Luciano Picolotto Universidade Federal de Santa Catarina, Caixa Postal 101, CEP 89520-000 Curitibanos, SC.
  • Ivan dos Santos Pereira Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-900 Pelotas, RS.
  • Juliano Dutra Schmitz Instituto Federal Catarinense, Campus Concórdia, Rodovia SC-283, Km 08, Caixa Postal 58, CEP 89703-720 Concórdia, SC.
  • Luis Eduardo Corrêa Antunes Embrapa Clima Temperado, Rodovia BR-392, Km 78, Caixa Postal 403, CEP 96001-971 Pelotas, RS.

DOI:

https://doi.org/10.1590/S1678-3921.pab2018.v53.25355

Keywords:

Prunus persica, growth, nitrogen, nutrition, planting density

Abstract

The objective of this work was to evaluate the effect of nitrogen fertilization on the mineral composition of leaves, initial growth, and yield of peach (Prunus persica) tree advanced selections grown at a high-planting density. The experiment was carried out between 2012 and 2015 in a randomized complete block design, with a combination of advanced selections of the 'Cascata 1513' and 'Cascata 1067' peach trees and of N fertilization doses (0, 30, 60, and 120 kg ha-1 N). Green weight after pruning, diameter, and increase of trunk diameter, canopy volume, plant height, branch length, number of buds per centimeter of shoot, chlorophyll index, leaf area, rust incidence, average production, number of fruit, and mass of fruit were evaluated. Genotype affects the vegetative growth and productive performance of peach trees. The application of N to dense peach orchards promotes a greater vegetative growth of the plants and increases the content of the nutrient in leaves. The initial production is affected by N fertilization. The recommendation of N fertilization made to date is insufficient for peach trees at high-density management systems of production.

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Published

2018-03-16

How to Cite

Ferreira, L. V., Picolotto, L., Pereira, I. dos S., Schmitz, J. D., & Antunes, L. E. C. (2018). Nitrogen fertilization in consecutive cycles and its impact on high-density peach crops. Pesquisa Agropecuaria Brasileira, 53(2), 172–181. https://doi.org/10.1590/S1678-3921.pab2018.v53.25355

Issue

Section

CROP SCIENCE