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Full-Text Articles in Agriculture
Comparison Of Water-Sensitive Paper, Kromekote And Mylar Collectors For Droplet Deposition With A Visible Fluorescent Dye Solution, J. Connor Ferguson, Andrew J. Hewitt, Chris C. O’Donnell, Greg R. Kruger
Comparison Of Water-Sensitive Paper, Kromekote And Mylar Collectors For Droplet Deposition With A Visible Fluorescent Dye Solution, J. Connor Ferguson, Andrew J. Hewitt, Chris C. O’Donnell, Greg R. Kruger
West Central Research and Extension Center, North Platte
The study was conducted at the University of Nebraska Pesticide Application and Tech-nology Laboratory in North Platte, Nebraska in July 2015. Two application volume rates (100 and 200 l · ha−1) and three nozzle types (XR, AIXR, TTI) were selected at two flow rates (0.8 and 1.6 l · min−1) and at a single application speed of 7.7 km · h−1. Each collec-tor type [Mylar washed (MW), Mylar image analysis (MIA), water-sensitive paper (WSP), and Kromekote (KK)] was arranged in a randomized complete block design. Each nozzle treatment was replicated twice, providing six cards of each collector type for each …
The Effect Of Adjuvants At High Spray Pressures For Aerial Applications, Bradley K. Fritz, W. Clint Hoffmann, Ryan S. Henry
The Effect Of Adjuvants At High Spray Pressures For Aerial Applications, Bradley K. Fritz, W. Clint Hoffmann, Ryan S. Henry
West Central Research and Extension Center, North Platte
Controlling droplet size is a critical part of making any successful agrochemical spray application. This is particularly true for higher-speed aerial applications where secondary atomization from air shear becomes the most dominant factor driving spray droplet size. Previous research has shown that higher spray pressures can result in larger droplet-sized sprays by increasing the exit velocity of the spray liquid from the nozzles, which in turn decreases the differential velocity between the spray liquid and surrounding airstream, reducing secondary breakup. This work explores the effects of higher-than-normal spray pressures on two typical aerial application nozzles in the presence of a …