PDF(Pubmed)
Abstract：
While spot spraying has gained increasing popularity in recent years, spot application of granule agrochemical has seen little development. Despite the potential for the technology, there currently exists no commercially available granular applicators capable of spot application. Therefore, the goal of this study was to design, build, and lab evaluate a precision applicator for spot applying granular agrochemical in wild blueberry. The design incorporated a John Deere RC2000 with a custom control box, recirculation system, and electrically actuated valves. All components were modified to fit a Valmar 1255 Twin-Roller. The system receives inputs from a predeveloped prescription map and can actuate each of the twelve valves separately to provide individual orifice control. Casoron® G4 was used as the testing agrochemical and in cycling the product pneumatically for 1 hour incurred no significant product degradation (p = 0.110). In lab evaluations, the applicator encountered zero errors in reading prescription maps and actuating the correct valves accordingly. Further, the granule recycling system had zero instances where product built up in the lines or jammed the valves. In all, this project represents the first successful development of a precision granular spot applicator for any cropping system.
摘要：
虽然近年来点喷越来越受欢迎，颗粒农用化学品的现场应用几乎没有发展。尽管该技术具有潜力，目前不存在能够现场施用的市售颗粒施用器。因此,这项研究的目的是设计，build,和实验室评估一种精密施用器，用于在野生蓝莓中现场施用颗粒状农用化学品。该设计结合了一个约翰迪尔RC2000与一个自定义的控制箱，再循环系统,和电动阀。所有组件都经过修改以适合Valmar1255Twin-Roller。该系统从预先开发的处方图接收输入,并且可以单独地致动十二个阀中的每一个以提供单独的孔口控制。Casoron®G4用作测试农用化学品,并且在气动循环产品1小时中没有引起显著的产品降解(p=0.110)。在实验室评估中，涂药器在读取处方图和相应地启动正确的阀门时遇到零错误。Further,颗粒回收系统没有出现产品堆积在管线中或堵塞阀门的情况。总之,该项目代表了用于任何裁剪系统的精密颗粒点涂抹器的首次成功开发。
