PERFORMANCE OF THE BOOMJET 5880-3/4-2TOC20 HYDRAULIC NOZZLE FOR HERBICIDE APPLICATION ON Urochloa decumbens (STAPF) R. WEBSTER

Authors

  • Luiz Carlos Barcellos
  • Rogério de Araújo Almeida
  • Paulo Garcez Ferreira Leão
  • Valquíria da Rocha Santos Veloso
  • Cecília Czepak
  • Paulo Marçal Fernandes

Keywords:

Weeds, agrochemical, no-tillage, pasture

Abstract

The experiment was carried out in the cerrado region of Goiânia, Goiás State, Brazil. The objective was to study the uniformity of drop deposition from spraying of the hydraulic Boomjet 5880-3/4-2TOC2095 nozzle in operation bands of 10 m, 12 m, and 14 m, and applied at 1.0 m, 1.3 m, and 1.5 m above plant tops. For treatment evaluation the variables drop density (droplets.cm-2) and control of Urochloa decumbens (Stapf) R. Webster plants were measured. The mathematical simulation of the overlapping bands application in both directions, unidirectional and bidirectional, showed low sprayed drop deposition uniformity, statistically represented by variation coefficients ranging from 61.46 % to 98.91%. Low values for drop density were obtained at specific points of the application band. Glyphosate applications at the three-studied nozzle application heights showed satisfactory control with operations bands of 10 m and 12 m.

KEY-WORDS: Weeds; agrochemical; no-tillage; pasture.

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Author Biography

Luiz Carlos Barcellos

Escola de Agronomia e Engenharia de Alimentos, Universidade Federal de Goiás. Campus II, Caixa Postal 131,
CEP 74001-970 Goiânia, GO.

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Published

2007-10-30

How to Cite

BARCELLOS, L. C.; ALMEIDA, R. de A.; LEÃO, P. G. F.; VELOSO, V. da R. S.; CZEPAK, C.; FERNANDES, P. M. PERFORMANCE OF THE BOOMJET 5880-3/4-2TOC20 HYDRAULIC NOZZLE FOR HERBICIDE APPLICATION ON Urochloa decumbens (STAPF) R. WEBSTER. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 35, n. 3, p. 199–205, 2007. Disponível em: https://revistas.ufg.br/pat/article/view/2223. Acesso em: 27 nov. 2024.

Issue

v. 35, n. 3, Sep./Dec. 2005

Section

Research Article

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