Download or read book Development of a Flow and Pressure Control System for Spray Applications in Precision Agriculture written by Xinyu Xiang and published by . This book was released on 1999 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nozzle Flow Dynamics During Control System Response of Pulse Width Modulated PWM Technology equipped Agricultural Sprayer written by Jonathan Viernes Fabula and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crop producers utilize agricultural sprayers equipped with modern technologies such as pulse width modulation (PWM) system that can manage flow at nozzle-by-nozzle, thus have the potential to provide greater resolution for section control and reducing the environmental contamination. The introduction of precision technologies such as the PWM system has obvious benefits to the producers; however, a greater understanding of system functionality and operational accuracy is required for adoption and implementation. One of the greatest challenges is to manage nozzle level target application rate for large self-propelled systems during active section control and ground speed transitions. Therefore, this study was conducted to quantify the PWM system's performance under real-world operating conditions, with a goal to develop knowledge for producers to accurately implement this technology and suggest technology improvements for manufacturer's. A methodology was established to conduct system-level evaluation of the PWM system both in laboratory and field settings. In the laboratory setting, the pressure and flow dynamics of three commercially available PWM systems (Capstan PinPoint, John Deere ExactApply, and Raven Hawkeye) were evaluated. On the other hand, field tests were conducted using a New Holland SPF370F and Case Patriot 4440 agricultural sprayer to evaluate the PWM system's performance in varying field conditions. Both sprayers were equipped with a Raven Hawkeye PWM system and had a 36.6 m boom width. Novel analytical techniques were developed to generate a high spatial control-section level mapping of system performance parameters to quantify advantages and instances of application rate errors. Laboratory test results show that different PWM systems provided different pressure drops when applying different application rates and pressures. The pressure drop was unique for different PWM systems, and it significantly increased with the increase in the application rate for three systems. The pressure drop could vary the nozzle flow rate, which may significantly impact the application rate, thereby reducing the product efficacy. A pressure drop greater than 70.0 kPa from the target application pressure could cause the flow rate to vary beyond ±10.0% error. The three PWM systems also had an ON/OFF latency before attaining the target application pressure and inherent fall time before the system stops spraying after the solenoid valves close. These latencies could increase the error, particularly when using a system that operates at a higher frequency. Moreover, the PWM systems operated at stable pressures for less than the specified duty cycle time may have resulted in the inaccurate nozzle flow rate observed during the study. The tests were conducted with a specific nozzle, however, it is very much possible that different nozzles might also exhibit different magnitudes of pressure drop. In the field tests, the PWM system maintained the target application pressure within the acceptable range for 77.0% to 89.0% of the time, indicating its ability to provide the application rate within the ±10.0% error. The pressure CV was below 5.0% for most of the time, signifying a consistent pressure between boom sections during operation. These results were significantly improved from using a flow-based system when applying the product at similar settings wherein it only operates for 32.0% of the time within the ±10.0% error. The droplet size spectra deviation when using a PWM system could occur mainly due to the improper nozzle selection. The system may deliver consistent droplet size spectra if the selected nozzle provides the desired droplet size within the wide range of application pressure thus, providing uniform product application. The systems' ability to manage pressure and thus provide uniform droplet spectra is particularly important for nozzle flow rate management and managing drift potential. Moreover, the duty cycle accuracy within ±5.0% was lower in fields with irregular shapes and varying terrain (12.0%) than in a rectangular field with relatively flat terrain (54.0%). Accurate duty cycle implementation is the key to achieving an accurate application rate; therefore newer approach as implemented during these tests might be executed to quantify control system response enhancements. The application rate accuracy within ±5.0% error was also lower in irregular-shaped fields (10.0% of the time) than the rectangular fields (46.0% of the time). Furthermore, the PWM system varied the duty cycles on the inner and outer boom section based on each control section's ground speed at various turning radii. The turn compensation functionality significantly reduced the application errors on curvilinear passes, thus effectively controlling pests and minimizing pesticide resistance and environmental damage. In conclusion, crop producers will continue to adopt new liquid application technologies such as the PWM system to improve product application efficiency. However, operators should understand the system component and control system responses to achieve desired performance in the varying field and operating conditions to reduce the application errors. Future research and development on nozzle pressure monitoring, flow dynamic optimization during the application cycle, and new sensor integration for accurate duty cycle implementation might be considered to refine real-time nozzle flow management to truly realize the concept of precision agriculture to reduce application error, pesticide resistance, and environmental pollution.
Download or read book Technology in Agriculture written by Fiaz Ahmad and published by BoD – Books on Demand. This book was released on 2021-10-13 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food security is one of the primary themes of the United Nations’ Sustainable Development Goals. In this regard, agricultural engineering is considered the backbone of agriculture, and agricultural mechanization is considered a helpful way to enhance crop yield and farmers’ profitability. Technology in Agriculture presents research in the field of agricultural engineering technologies and applications in agricultural equipment engineering, biosystem engineering, energy systems engineering, and computers in agriculture. It provides an overview of recent advancements in agricultural engineering and examines key aspects of emerging technologies and their applications. In addition, the book explores modern methodologies such as artificial intelligence and machine learning for agricultural mechanization.
Download or read book Precision Crop Protection the Challenge and Use of Heterogeneity written by Erich-Christian Oerke and published by Springer Science & Business Media. This book was released on 2010-08-03 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Precision farming is an agricultural management system using global navigation satellite systems, geographic information systems, remote sensing, and data management systems for optimizing the use of nutrients, water, seed, pesticides and energy in heterogeneous field situations. This book provides extensive information on the state-of-the-art of research on precision crop protection and recent developments in site-specific application technologies for the management of weeds, arthropod pests, pathogens and nematodes. It gives the reader an up-to-date and in-depth review of both basic and applied research developments. The chapters discuss I) biology and epidemiology of pests, II) new sensor technologies, III) applications of multi-scale sensor systems, IV) sensor detection of pests in growing crops, V) spatial and non-spatial data management, VI) impact of pest heterogeneity and VII) precise mechanical and chemical pest control.
Download or read book Precision Agriculture Technology for Crop Farming written by Qin Zhang and published by CRC Press. This book was released on 2015-10-15 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a review of precision agriculture technology development, followed by a presentation of the state-of-the-art and future requirements of precision agriculture technology. It presents different styles of precision agriculture technologies suitable for large scale mechanized farming; highly automated community-based mechanized production; and fully mechanized farming practices commonly seen in emerging economic regions. The book emphasizes the introduction of core technical features of sensing, data processing and interpretation technologies, crop modeling and production control theory, intelligent machinery and field robots for precision agriculture production.
Download or read book Precision Agriculture Technology and Economic Perspectives written by Søren Marcus Pedersen and published by Springer. This book was released on 2017-11-15 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents cases from different countries with a main focus on the perspectives of using precision farming in Europe. Divided into 12 chapters it addresses some of the most recent developments and aspects of precision farming. The intention of this book is to provide an overview of some of the most promising technologies with precision agriculture from an economic point of view. Each chapter has been put together so that it can be read individually should the reader wish to focus on one particular topic. Precision Farming as a farm technology benefits from large-scale advantages due to relatively high investment costs and is primarily adopted on farms with medium to large field areas.
Download or read book Advanced Mobile Robotics written by DaeEun Kim and published by MDPI. This book was released on 2020-03-06 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mobile robotics is a challenging field with great potential. It covers disciplines including electrical engineering, mechanical engineering, computer science, cognitive science, and social science. It is essential to the design of automated robots, in combination with artificial intelligence, vision, and sensor technologies. Mobile robots are widely used for surveillance, guidance, transportation and entertainment tasks, as well as medical applications. This Special Issue intends to concentrate on recent developments concerning mobile robots and the research surrounding them to enhance studies on the fundamental problems observed in the robots. Various multidisciplinary approaches and integrative contributions including navigation, learning and adaptation, networked system, biologically inspired robots and cognitive methods are welcome contributions to this Special Issue, both from a research and an application perspective.
Download or read book Proceedings of the Third International Conference on Precision Agriculture written by Pierre C. Robert and published by . This book was released on 1996 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advancements of Spraying Technology in Agriculture written by Fiaz Ahmad and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant protection activities are most important practices during crop production. Application of maximum pesticide products with the sprayer. The application of fungicides, herbicides, and insecticides is one of the most recurrent and significant tasks in agriculture. Conventional agricultural spraying techniques have made the inconsistency between economic growth and environmental protection in agricultural production. Spraying techniques continuously developed in recent decades. For pesticide application, it is not the only sprayer that is essential, but all the parameters like the type and area of the plant canopy, area of a plant leaf, height of the crop, and volume of plants related to plant protection product applications are very important for obtaining better results. From this point of view, the advancement in agriculture sprayer has been started in last few decades. Robotics and automatic spraying technologies like variable rate sprayers, UAV sprayers, and electrostatic sprayers are growing to Increase the utilization rate of pesticides, reduce pesticide residues, real-time, cost-saving, high compatibility of plant protection products application. These technologies are under the ,Äúumbrella,Äù of precision agriculture. The mechanized spraying system, usually implemented by highly precise equipment or mobile robots, which, makes possible the selective targeting of pesticide application on desire time and place. These advanced spraying technologies not only reduces the labour cost but also effective in environmental protection. Researchers are conducting experimental studies on the design, development and testing of precision spraying technologies for crops and orchards.
Download or read book Precision agriculture 23 written by John V. Stafford and published by BRILL. This book was released on 2023-08-14 with total page 1127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Precision agriculture is a reality in agriculture and is playing a key role as the industry comes to terms with the environment, market forces, quality requirements, traceability, vehicle guidance and crop management. Sensors now in use in agriculture are generating ‘Big Data’ leading to the use of machine learning and AI - an increasing challenge for agriculture. Research continues to be necessary, and needs to be reported and disseminated to a wide audience. These edited proceedings contain peer reviewed papers presented at the 14th European Conference on Precision Agriculture, held in Bologna, Italy. The papers reflect the wide range of disciplines that impinge on precision agriculture - technology, crop science, soil science, agronomy, information technology, decision support, remote sensing, data analysis and others. The broad range of research topics reported will be a valuable resource for researchers, advisors, teachers and professionals in agriculture long after the conference has finished.
Download or read book Agricultural Automation written by Qin Zhang and published by CRC Press. This book was released on 2016-04-19 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural automation is the core technology for computer-aided agricultural production management and implementation. An integration of equipment, infotronics, and precision farming technologies, it creates viable solutions for challenges facing the food, fiber, feed, and fuel needs of the human race now and into the future. Agricultural Automat
Download or read book Pesticide Formulations and Application Systems written by Paul D. Berger and published by ASTM International. This book was released on 1993 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers presented at the 13th Symposium on [title], held in Miami, Florida in November 1992. The subjects involve a wide range of disciplines of interest to formulators, basic pesticide manufacturers, applicators, and suppliers to the agrochemical industry. The volume is a compilation of the latest d
Download or read book Precision Agriculture for Sustainability written by Dr John Stafford and published by . This book was released on 2017-11-30 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: By using resources more efficiently, precision agriculture can make farming more productive and sustainable. This collection reviews current research on key technologies in precision agriculture and its applications.
Download or read book Pests Weeds and Diseases in Agricultural Crop and Animal Husbandry Production written by Dimitrios Kontogiannatos and published by BoD – Books on Demand. This book was released on 2020-12-23 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights some of the most recent research with respect to emerging pest challenges in agricultural crop and animal husbandry production: analytical methods for glyphosate detection in foods, biopesticides and essential oils, environmental safety in pest control, herbicide and glyphosate resistance, herbicides and weed management, integrated pest management, mass spectrometry for insect physiology studies, pheromones and chemical communication, pasteurellosis outbreaks, and tick identification and management.
Download or read book Development and Field Testing of a Precision Agriculture Variable rate Broadcast Sprayer for Use in University and Extension Education Programs written by Aaron Ray Dickinson and published by . This book was released on 2005 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precision Agriculture Basics written by D. Kent Shannon and published by John Wiley & Sons. This book was released on 2020-01-22 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the growing popularity and availability of precision equipment, farmers and producers have access to more data than ever before. With proper implementation, precision agriculture management can improve profitability and sustainability of production. Precision Agriculture Basics is geared at students, crop consultants, farmers, extension workers, and practitioners that are interested in practical applications of site-specific agricultural management. Using a multidisciplinary approach, readers are taught to make data-driven on-farm decisions using the most current knowledge and tools in crop science, agricultural engineering, and geostatistics. Precision Agriculture Basics also features a stunning video glossary including interviews with agronomists on the job and in the field.
Download or read book Pesticides in Agriculture and the Environment written by Willis B. Wheeler and published by CRC Press. This book was released on 2002-08-14 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discussing the range of effects of pesticides on food and human safety, water quality, wildlife, and pest management, this book explores the agricultural, economic, and regulatory factors that affect pesticide use. It examines crop and pest ecology, integrated pest management principles, and emerging analytical tools to improve the efficacy and cost-efficiency of pest control. Expert contributions describe the current status of pesticides issues and those related to pest management. The book summarizes advances and trends in the crop protection industry, such as integrated pest management, hybrid seed and generic pesticide production, improved pesticide formulations, and plant biotechnology.
