Navegando por Autor "Precipito, Laís Maria Bonadio"

Agora exibindo 1 - 1 de 1
  • Imagem de Miniatura
    Dissertação
    Acesso aberto (Open Access)
    Test bench para coleta de deriva em condições de clima subtropical
    (Universidade Estadual do Norte do Paraná, 2019-02-22) Precipito, Laís Maria Bonadio; Oliveira, Rone Batista de; https://orcid.org/0000-0002-3071-4827; http://lattes.cnpq.br/2379804514613050; Oliveira, Rone Batista de; https://orcid.org/0000-0002-3071-4827; http://lattes.cnpq.br/2379804514613050; Gandolfo, Marco Antônio; https://orcid.org/0000-0003-2314-3752; http://lattes.cnpq.br/5560552732033631; Lima, Julião Soares de Souza; https://orcid.org/0000-0002-8178-3937; http://lattes.cnpq.br/4456536143814608; Osipe, Jethro Barros; http://lattes.cnpq.br/9692340257207288; Abi-Saab, Otavio Jorge Grígoli; https://orcid.org/0000-0002-1757-636X; http://lattes.cnpq.br/8437035647330384
    An alternative method to ISO 22866 for measuring field drift was developed by the University of Turin (DEIAFA), referred to as the bench test. This methodology is faster and simpler to reproduce for evaluating drift under field conditions, and can be performed even under unstable wind conditions when compared to ISO 22866. The aim of this research was to quantify drift potential using the bench‑test methodology under subtropical climate conditions, using three spray nozzles, at two working pressures and two spray boom heights. The study was conducted in a completely randomised design comprising 12 treatments resulting from the combination of 3 nozzles, 2 pressures and 2 boom heights, with four replicates, totalling 48 tests. The nozzles used were XR 11002 (100 and 400 kPa), AIXR 11002 (100 and 600 kPa) and ATR 2.0 hollow cone (400 and 2000 kPa), evaluated at two boom heights: 0.50 m and 1.00 m above the test bench. During the tests, agrometeorological conditions — wind speed and direction, air temperature and relative humidity — were recorded continuously at three‑second intervals at a height of 2.0 m above ground level. The bench‑test approach proved to be a viable methodology for evaluating drift potential under field conditions in a subtropical region, demonstrating that variations in agrometeorological conditions, nozzle type and operating pressure are decisive factors influencing drift from boom sprayers. Relative air humidity and working pressure were the most influential factors determining drift potential for the ATR 2.0, XR 11002 and AIXR 11002 nozzles, whereas changing boom height from 0.50 m to 1.00 m had no significant effect on the amount of drift collected.