磁力辅助喷雾器的雾滴大小、速度和喷雾覆盖范围

IF 4.4 1区 农林科学 Q1 AGRICULTURAL ENGINEERING
Thomas R. Butts , Simerjeet S. Virk , Koffi Badou-Jeremie Kouame
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引用次数: 0

摘要

杀虫剂法规的增加、抗药性问题导致的杀虫剂选择减少以及种植者利润空间的缩小,都要求对每次施药进行优化,以减少喷洒漂移并提高覆盖率。然而,除了增加液滴大小外,还需要采取其他策略,因为已经观察到害虫防治效果有所下降。这项研究探索了磁力辅助喷雾器(MAS)帮助提高喷雾覆盖率的潜力,并确定了它对喷雾液滴大小和速度的影响。与传统喷雾器相比,磁力辅助喷雾器对所测试的四种类型喷嘴的喷雾液滴大小特性影响很小(二十次 F 检验中只有五次具有统计学意义),并且在距离喷嘴 51 厘米处测量时,对平均或最大液滴速度没有影响。虽然从统计学角度来看,与传统喷雾器相比,MAS 在 12 个参数实例中的两个实例中仅增加了 4.6% 和 12.5% 的液滴大小,但有迹象表明,它可能会降低喷雾漂移的可能性,因为在所有测试的喷嘴类型中,可漂移细粒(测量到的直径小于 200 μm 的单个液滴的百分比)在数值上都更小。在五次实验中,仅在一次实验的一个处理中观察到 MAS 的喷雾覆盖率和沉积效果优于传统喷雾器。总体而言,MAS 对测量的覆盖率和计算的水敏纸沉积量的影响很小,甚至是负面的。未来的研究需要测量 MAS 的实际喷雾漂移,并评估其他潜在的影响变量,如水质、农药活性成分和植物种类。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Droplet size, velocity, and spray coverage from a magnetic-assisted sprayer

The increase in pesticide regulations, diminished pesticide options due to resistance concerns, and narrowing grower profit margins require each application to be optimised to reduce spray drift and enhance coverage. However, alternative strategies outside of increasing droplet size are needed as reductions in pest control have been observed. This research explored the potential of a magnetic-assisted sprayer (MAS) to aid in spray coverage and determine its impact on spray droplet size and velocity. The MAS minimally impacted spray droplet size characteristics across the four nozzle types tested (only five of twenty F-tests were statistically significant) and did not impact average or maximum droplet velocities when measured 51-cm from the nozzle compared to the conventional sprayer. Although statistically, the MAS increased droplet size by only 4.6 and 12.5% in two of 12 parameter instances compared to the conventional sprayer, there were indications it may reduce spray drift potential as the driftable fines (% of individual droplets measured with diameters less than 200 μm) were numerically less across all nozzle types tested. Across the five experiments, an improvement in spray coverage and deposition by the MAS compared to the conventional sprayer was only observed in one treatment from one experiment. Overall, the MAS minimally to negatively impacted the measured coverage and calculated deposition from water-sensitive paper. Future research is needed to measure actual spray drift from a MAS as well as to evaluate other potentially influential variables such as water quality, pesticide active ingredient, and plant species.

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来源期刊
Biosystems Engineering
Biosystems Engineering 农林科学-农业工程
CiteScore
10.60
自引率
7.80%
发文量
239
审稿时长
53 days
期刊介绍: Biosystems Engineering publishes research in engineering and the physical sciences that represent advances in understanding or modelling of the performance of biological systems for sustainable developments in land use and the environment, agriculture and amenity, bioproduction processes and the food chain. The subject matter of the journal reflects the wide range and interdisciplinary nature of research in engineering for biological systems.
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