Navegando por Autor "Silva, Cassia Milena da"

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    Efeito de tríplice lavagem, do uso dos agentes descontaminantes e da limpeza prévia em diferentes pulverizadores no potencial de retirada do herbicida dicamba
    (Universidade Estadual do Norte do Paraná, 2024) Silva, Cassia Milena da; Gandolfo, Marco Antônio; https://orcid.org/0000-0003-2314-3752; http://lattes.cnpq.br/5560552732033631; Matsumoto, Leopoldo Sussumu; https://orcid.org/0000-0001-5102-545X; http://lattes.cnpq.br/0857955043436449; Gandolfo, Ulisses Delvaz; https://orcid.org/0000-0001-6131-0289; http://lattes.cnpq.br/8520084377953959
    Decontamination of the hydraulic extraction circuit after dicamba applications is important to avoid injuries to sensitive crops, such as soybeans, which are not resistant to the herbicide. The efficiency of these procedures depends on several factors, including the number of washes and the material used to manufacture the reservoir. The objective of this work was to evaluate the amount of dicamba herbicide residue in the three sprayer rinse stages on two different models, using two decontaminating agents and using them with and without prior cleaning. In this trial, the herbicides Xtendicam® (1,5 L ha-1) and Roundup Transborb R® (3,0 L ha-1) and the adjuvant Xtend Protect® (0,1 L ha-1) and two decontaminating agents were used. Defuse Cromo® Spray Kit with Defuse A (1,5L ha-1) + Defuse B (0,25 Kg ha-1) and Tank Cleaner ICL® (0,2 Kg ha-1). In order to simulate a situation of high residue restriction inside the hydraulic circuit and high cleaning difficulty, the fungicide Unizeb Gold® (3,0 kg ha-1) was used. The self-propelled vehicles used were Jacto® 2000 Plus and John Deere® 4630, both with 2000 L reservoir capacity. The was conducted with 8 treatments, with 4 repetitions and 3 washes, to obtain results, high-performance liquid chromatography technology was used. Analysis of variance was performed using Sasm Agri software and treatment means were compared using the Scott-Knott test with 95% probability. The results showed that triple rinse of the hydraulic circuit was effective in decontaminating the sprayers. The John Deere® self propelled vehicle was easier to clean due to the tank material being made of polyethylene. The most efficient decontaminating agent was the Spray Defuse® Kit. Pre-washing showed greater results on the self-propelled Jacto®.