000			02764nab a2200313 i 4500
003			BR-BrBNA
005			20230921174739.0
008			230814b2020 bl.ar|pooa||| 00| 0 eng |
040			_aBR-BrBNA _beng
072			_aH60
100			_aCampos, S.F.B.
100			_aCunha, J.P.A.R.
100			_aAssunção, H.H.T.
100			_aAlves, T.C.
100			_aZandonadi, C.H.S.
100			_aLemes, E.M.
245			_aEfficacy of glyphosate applied using an electrostatic sprayer as affected by adjuvant and carrier volumes
500			_aPublicação on-line; 29 ref.; 6 tables; 1 illus.; Summary (En)
520			_a ABSTRACT Background: The use of electrostatic spray has the potential to optimize pesticide applications; however, further studies are required to verify its effectiveness. Objective: The objective of this work was to evaluate the electrostatic application system for the chemical control of weeds with glyphosate and adjuvant in different carrier volumes. Methods: The physicochemical properties of the spray solution, charge/mass relations, spray deposition on weeds, losses to the soil, effectiveness of weed control, and spray drift were evaluated. The field experiment was designed to have randomized blocks with four replications in a 2x2x2+2 factorial: the presence or not of electrostatic spray; with and without adjuvant (soybean lecithin + propionic acid); two carrier volumes (50 and 90 L ha-1); a control without applications and a conventional spray rate (150 L ha-1) for additional treatments. The study was performed in duplicate. Results: The electrostatic system energized the droplets during the application of glyphosate and adjuvant; however, this did not influence the deposition on the weeds, the losses to the soil, and the drift. The adjuvant improved the effectiveness of weed control in various situations, changed the spray solution properties, and reduced the losses due to drift. Conclusions: The adjuvant used proved to be an important tool in application technology. The effectiveness of weed control, in general, was not influenced by the electrostatic system. Keywords: spray adjuvant spray drift spray rate glyphosate physicochemical properties
650			_aHERBICIDA
650			_aPULVERIZAÇÃO
650			_aPROPRIEDADE FÍSICO-QUÍMICA
650			_aERVA DANINHA
650			_aCONTROLE QUÍMICO
773	0		_0886 _91817 _dLondrina-PR : Sociedade Brasileira da Ciência das Plantas Daninhas, 1978 _o2023-031024 _tPlanta Daninha (Brazil) _x0100-8358; 1806-9681 (on-line) _gv. 38 p. 1-11; (2020) _wBR2023000861
856			_uhttps://www.scielo.br/j/pd/a/DnmYNSmYybGyYjLKLQ5WW8z/?format=pdf&lang=en
942			_cAnalítica
999			_c9810 _d9810