Spray Technology
Mostrando 1-12 de 47 artigos, teses e dissertações.
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1. MULTIVARIATE ANALYSIS APPLIED TO SPRAY DEPOSITION IN GROUND APPLICATION OF PHYTOSANITARY PRODUCTS IN COFFEE PLANTS
ABSTRACT An adequate combination of factors involved in the technology used for phytosanitary product application contributes to an efficient spray deposition on the target. The objective of this study was to use multivariate analysis to characterize the magnitude of effects and the order of influence of three factors that interfere with the quality of phyto
Eng. Agríc.. Publicado em: 2021-08
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2. USE OF REMOTELY PILOTED AIRCRAFTS FOR THE APPLICATION OF PLANT PROTECTION PRODUCTS
ABSTRACT The use of remotely piloted aircrafts (RPAs) to apply plant protection products has grown a lot in agriculture worldwide. However, little research data are available regarding the efficiency and safety of this method, especially in Brazil. Thus, this review aimed to present the current scenario of scientific research involving RPAs in the applicatio
Eng. Agríc.. Publicado em: 2021-04
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3. Effectiveness of coffee leaf miner control associated with spray deposition in coffee leaves
ABSTRACT Coffee production faces challenges due to the susceptibility of the crop to insects. Owing to the coffee leaf miner Leucoptera coffeella, which is one of the main insect pests, the technology for the application of phytosanitary measures becomes the main challenge for coffee growers. This study aimed to evaluate the effectiveness of coffee leaf mine
Rev. Ceres. Publicado em: 2020-10
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4. SPRAY DEPOSITION ON MAIZE USING AN ELECTROSTATIC SPRAYER
ABSTRACT It is a well-known fact that the application of pesticides can be improved using an electrostatic spray due to the reduction of the application rate and increase in deposition on plant targets. However, little information exists on the use of such technology in maize crops. Thus, this study is aimed to evaluate the spray deposition on maize resultin
Eng. Agríc.. Publicado em: 2020-08
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5. Efficacy of Imazamox with Centrifugal Energy Spray Nozzle on Eichhornia crassipes and Economic Analysis of Control Viability
RESUMO: Neste estudo foi avaliada a eficácia do imazamox para controle de E. crassipes, com bico de pulverização de energia centrífuga em doses e volumes de calda de pulverização e comparação do custo de controle mecânico e químico de plantas aquáticas. Foram utilizadas as doses de 200, 400 e 600 g i.a. ha-1 de imazamox e volumes de calda de 25, 5
Planta daninha. Publicado em: 17/10/2019
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6. Effects of news sowing arrangements and air assistance on fungicide spray distribution on soybean crop
ABSTRACT. The density and distribution of soybean plants can interfere in the plant growth stage and yield, as well as phytosanitary management of this crop. Thus, innovations in production systems must be followed by improvements in pesticide application technology. Therefore, this study aimed to evaluate the influence of soybean sowing arrangements on fung
Acta Sci., Agron.. Publicado em: 23/09/2019
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7. Resistance Mapping of the Genus Cyperus in Rio Grande do Sul and Selection Pressure Analysis
RESUMO: Entre as espécies do gênero Cyperus ocorrentes na lavoura de arroz, destacam-se C. esculentus, C. difformis e C. iria, sendo as duas últimas relatadas como resistentes a herbicidas no Rio Grande do Sul (RS). Os objetivos deste trabalho foram caracterizar e mapear a ocorrência de plantas resistentes do gênero Cyperus em áreas de arroz irrigado n
Planta daninha. Publicado em: 13/06/2019
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8. Fungicide application technology for controlling the sugarcane orange rust
RESUMO Com o surgimento epidêmico da ferrugem alaranjada da cana-de-açúcar, aplicações de fungicidas dos grupos químicos Estrobilurinas e Triazóis tornaram-se necessárias para as variedades suscetíveis. Objetivou-se avaliar as condições operacionais de aplicação de fungicidas em cana-de-açúcar (variedade SP81-3250), no que se refere à deposi�
Pesqui. Agropecu. Trop.. Publicado em: 08/04/2019
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9. Improvement in spray-drying technology for preparation of pregelatinized cassava starch
Abstract Native cassava starch was gelatinized under different pretreatment conditions (preheating temperature, starch concentration and heating time) and spray-dried. A rotational compound central design was used to test the three independent variables: the preheating temperature, starch concentration, and heating time, and the behavior of the system was a
Food Sci. Technol. Publicado em: 31/01/2019
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10. Extensión de durabilidad de pistones de bombas de fractura hidráulica mediante el empleo de tecnología de nitruración por plasma y PVD
ABSTRACT Hydraulic stimulation technique consists of "fracturing" the formation (rock reservoirs) through pumping a fracturing fluid downhole. This operation is performed by using hydraulic fracturing pumps. The pistons of these pumps are mechanical components performing the intake and compressing fracture fluid by reciprocating action. During this alternati
Matéria (Rio J.). Publicado em: 19/07/2018
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11. Microencapsulation of plum (Prunus salicina Lindl.) phenolics by spray drying technology and storage stability
Abstract To improve the stability of the phenolic extracts from plum fruit (Prunus salicina Lindl.), the microencapsulation conditions of spray drying were optimized by the response surface method. The Box-Behnken experimental results indicated the optimal conditions involved an inlet air temperature of 142.8 °C, a core material content of 23.7% and a feed
Food Sci. Technol. Publicado em: 26/10/2017
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12. Optimization of spray deposition and Tetranychus urticae control with air assisted and electrostatic sprayer
ABSTRACT: Improved spray deposition can be attained by electrostatically charging spray droplets, which increases the attraction of droplets to plants and decreases operator exposure to pesticide and losses to the environment. However, this technique alone is not sufficient to achieve desirable penetration of the spray solution into the crop canopy; thus, ai
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-02