Spraying systems and traveling speed in the deposit and spectrum of droplets in cotton plant [PDF]
Engenharia Agrícola, 2015 Tractor traveling speed can influence the quality of spraying depending on the application technology used. This study aimed to evaluate the droplet spectrum, the deposition and uniformity of spray distribution with different spraying systems and ...
Jhonatan D. Cavalieri +3 more
doaj +5 more sources
BLADE ANGLE EFFECT ON DROPLET SIZE SPECTRUM OF ROTARY ATOMIZERS USED IN BRAZIL [PDF]
Engenharia Agrícola, 2016 ABSTRACT The effect of blade angle on droplet size spectrum of five rotary cage atomizers and one rotary disc atomizer used in Brazil was evaluated in a high speed wind tunnel, with an air speed of 180 km h−1. This study included the characterization of the droplet size spectrum, via laser diffraction instrument, generated by three blades angles, of 45,
Carvalho, Fernando K. +4 more
openaire +8 more sources
HOW DO THE DROPLET SPECTRUM UNIFORMITY AND SPRAY VOLUME OF FLAT-FAN NOZZLES INFLUENCE FUNGICIDE SPRAY DISTRIBUTION QUALITY IN SOYBEANS? [PDF]
Engenharia Agrícola, 2022 Droplet spectrum quality is essential to effectively control crop pests and diseases. This study aimed to characterize the droplet uniformity of the eight most popular flat-fan nozzles used by Brazilian farmers and relate it to their spraying quality ...
Fabiano Griesang +5 more
doaj +2 more sources
Insecticide spray drift reduction with different adjuvants and spray nozzles [PDF]
Revista Brasileira de Engenharia Agrícola e Ambiental, 2021 Insecticide spray drift can lead to reduced control efficiency and loss of product to the environment. Thus, we conducted a study to evaluate the effect of different spray nozzles and the addition of adjuvants in insecticide spray on the resulting ...
Rodrigo Y. P. Marubayashi +5 more
doaj +1 more source
NUMERICAL SIMULATION AND EXPERIMENTAL ANALYSIS OF SPRAY FIELD OF IMPINGEMENT NOZZLE [PDF]
Engenharia Agrícola, 2023 The shape of a spray droplet from a flat-fan nozzle in the plant protection sector is similar to a ‘U shape’, the middle particle size being small but the diameter of both sides being too large.
Fulong Dong, Wenjian He, Hongping Zhou
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EFFECT OF NOZZLES, APPLICATION RATES, AND ADJUVANTS ON SPRAY DEPOSITION IN WHEAT CROPS [PDF]
Engenharia Agrícola, 2019 The use of insecticides is common in pest management in wheat crops but may lead to higher production costs and environmental contamination. Therefore, a more comprehensive and uniform distribution of plant protection products in the desired target is ...
Willian A. Machado +3 more
doaj +1 more source
Lineshape of rotational spectrum of CO in He4 droplets [PDF]
The Journal of Chemical Physics, 2008 In a recent experiment the rovibrational spectrum of CO isotopomers in superfluid helium-4 droplets was measured, and a Lorentzian lineshape with a large line width of 0.024K (half width at half maximum) was observed [von Haeften et al., Phys. Rev. B 73, 054502 (2006)].
Zillich, Robert E. +2 more
openaire +3 more sources
Spectrum of droplets produced by use of adjuvants [PDF]
Idesia (Arica), 2013 Los adyuvantes son productos anadidos a la solucion de pulverizacion con el objetivo de auxiliar en la aplicacion de pesticidas. Sin embargo, sus efectos en los parametros tecnicos de la pulverizacion aun no estan totalmente aclarados. Siendo asi, el objetivo fue evaluar los efectos de la adicion de cinco adyuvantes (A, B, C, D y Y) y cinco diluciones (
Sasaki, Robson S +4 more
openaire +2 more sources
INTERACTIONS BETWEEN ADJUVANTS AND THE FUNGICIDE AZOXYSTROBIN+BENZOVINDIFLUPYR IN HYDRAULIC SPRAYING [PDF]
Engenharia Agrícola, 2019 Adjuvants are tools to maximize pesticide spray quality. This study aimed to evaluate the interaction effects between adjuvants and the fungicide azoxystrobin + benzovindiflupyr on the physicochemical characteristics, droplet evaporation time, and spray ...
Thiago N. Landim +4 more
doaj +1 more source
Atomization Characteristics of a Hollow Cone Nozzle for Air-Assisted Variable-Rate Spraying
Agriculture, 2023 During variable-rate spraying in orchards, the atomization characteristics and distribution of droplets in and out of the target area can be affected by the sprayer pressure. In this study, a variable-rate spraying control system test bench was designed,
Feixiang Yuan +7 more
doaj +1 more source