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Author : H. Erdal Ozkan
Publisher :
ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.:/5 (454 download)
Download or read book Reducing Spray Drift written by H. Erdal Ozkan and published by . This book was released on 2000 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vernon Lee Hofman
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (543 download)
Download or read book Reducing Spray Drift written by Vernon Lee Hofman and published by . This book was released on 2001 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (74 download)
Download or read book Reducing Spray Drift written by and published by . This book was released on 1992 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Primary Industries Standing Committee
Publisher : CSIRO PUBLISHING
ISBN 13 : 9780643068353
Total Pages : 88 pages
Book Rating : 4.0/5 (683 download)
Download or read book Spray Drift Management written by Primary Industries Standing Committee and published by CSIRO PUBLISHING. This book was released on 2002 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical guide focuses on managing the risks of spray drift and includes information on appropriate handing practices to ensure a safe workplace.
Author : A. G. Dexter
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (319 download)
Download or read book Herbicide Spray Drift written by A. G. Dexter and published by . This book was released on 1993 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Primary Industries Standing Committee
Publisher : CSIRO PUBLISHING
ISBN 13 : 9780643068353
Total Pages : 88 pages
Book Rating : 4.0/5 (683 download)
Download or read book Spray Drift Management written by Primary Industries Standing Committee and published by CSIRO PUBLISHING. This book was released on 2002 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical guide focuses on managing the risks of spray drift and includes information on appropriate handing practices to ensure a safe workplace.
Author : Brent Allen Pringnitz
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (5 download)
Download or read book Selecting the Correct Nozzle to Reduce Spray Drift written by Brent Allen Pringnitz and published by . This book was released on 2001 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bradley K. Fritz
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (125 download)
Download or read book Field Scale Evaluation of Spray Drift Reduction Technologies from Ground and Aerial Application Systems written by Bradley K. Fritz and published by . This book was released on 2011 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this work is to evaluate a proposed test plan for the validation testing of pesticide spray drift reduction technologies (DRTs) for row and field crops, focusing on the testing of ground and aerial application systems under full-scale field evaluations. The measure of performance for a given DRT tested under field conditions is the downwind deposition as measured on horizontal fallout collectors. Ground and aerial application equipment were evaluated for in-swath and downwind deposition of sprays as applied by both a reference system and a drift reducing technology. For this study, the reference system was defined as a spray boom outfitted with the ASABE Fine/Medium boundary reference nozzles. For the ground system, the drift reducing system tested was a ground sprayer outfitted with an air-induction version of the reference nozzle. The aerial system DRT was a flat fan nozzle specifically designed for aerial application usage. Downwind deposition was measured from the edge of the swath out to 100 m downwind. Additionally, the airborne portion of the spray remaining suspended in the air at 50 m downwind was measured. There were a number of confounding issues with the measured data including poor recovery of deposits and non-ideal wind directions during specific replications. Even with these issues, the drift reduction between the reference and DRT system measured in the field for the aerial trials was similar to that estimated using the agricultural dispersion model. A number of additional improvements and checks are suggested prior to further field evaluations.
Author : H. Gratkowski
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (319 download)
Download or read book Aerial Spray Adjuvants for Herbicidal Drift Control written by H. Gratkowski and published by . This book was released on 1973 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increased public concern about pesticides requires that foresters reduce drift and insure precise application of herbicides to the areas requiring treatment. Drift control is necessary near waterways and other ecologically sensitive areas. This publication discusses available drift control adjuvants for herbicidal sprays. These include invert emulsions, thickening agents, particulating agents, and foam sprays. Commercially available adjuvants are described and their use, advantages, and disadvantages are discussed. Thickening agents and foam sprays show special promise for drift reduction in aerial application of herbicides on forest lands.
Author :
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (713 download)
Download or read book Spray Drift Reduction Evaluations of Spray Nozzles Using a Standardized Testing Protocol written by and published by . This book was released on 2010 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development and testing of drift reduction technologies (DRTs) have come to the forefront of application research in the past few years in the United States. DRTs can be spray nozzles, sprayer modifications, spray delivery assistance, spray property modifiers (adjuvants), and/or landscape modifications. A protocol for testing DRTs in high speed wind tunnels has been previously reported and was expanded to test spray nozzles. This manuscript reports on the initial implementation of the DRT program for conducting DRT evaluations of three spray nozzles under high speed conditions i.e., 45-65 m/s (100-140 mph), which are relevant to the aerial application of crop production and protection materials. The spray nozzles were evaluated in the USDA-Agriculture Research Service High Speed Wind Tunnel facility. The droplet size of each of the nozzles with different airspeeds, spray pressures, and orientation was measured with a Sympatec Helos laser diffraction instrument. The droplet size spectra for each test were input in a spray dispersion model (AGDISP), which calculates the downwind drift expected from a typical aerial application scenario. As compared to the reference nozzle, the three spray nozzles reduced spray drift by 70-84 % as compared to the reference nozzle. The nozzles generated spray droplets with volume median diameters 60-80 microns larger than the reference nozzle. One of the aerial application industry's best management practices BMPs is to not spray directly on the downwind edge of a field. The spray swath near this edge is moved upwind i.e., offset by 1/2 to 1 swath width. When this BMP was combined with the drift reductions from the spray nozzles, the amount of drift reduction was slightly increased; however application efficiencies increased to 93-96 %. These results demonstrate the possibility of combining multiple drift reduction tech.
Author : A. M. Forbes
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (641 download)
Download or read book The Effectiveness of Windscreens in Reducing Spray Drift written by A. M. Forbes and published by . This book was released on 1991 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fiaz Ahmad
Publisher : BoD – Books on Demand
ISBN 13 : 1838819215
Total Pages : 538 pages
Book Rating : 4.8/5 (388 download)
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.
Author : Khaldoun Mohammad El-Dirany
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.:/5 (787 download)
Download or read book Wind Tunnel Evaluation of Air Assist in Reducing Spray Drift written by Khaldoun Mohammad El-Dirany and published by . This book was released on 2000 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although pesticide spraying is an indispensable task in modern agricultural practices, drift of the chemical away from the intended target is a major concern, since it represents economical loss and causes environmental pollution. A major factor that influences drift is natural wind. One of the methods used for reducing spray drift is the air assist technology, where a high-speed air jet, distributed all along the spray pattern, is used to overcome the wind effect by directing the droplets toward the intended target The objective of this study was to investigate the effect of nozzle size, pressure, and orientation relative to the wind on the performance of a single-nozzle air-assist system in a wind tunnel.--Two standard flat fan nozzles (8001 and 8003) were used in this study. Each nozzle was tested at three levels of pressure (138, 276, and 414 kPa), three orientations (0?, 45?, and 90?) relative to the wind direction, and three different treatments (no-wind, wind without air-assist, and wind with air-assist). The average wind speed was 4.3 m/s, and the average air-assist jet velocity measured at 13 m/s. A three-dimensional patternator (1.3 m x 1.0 m x 0.15 m) was used to measure spray recovery under each treatment Comparison of the spray retained under each treatment provided a measure of performance of the air-assist system Data was analyzed using a completely randomized design Air-assist was effective in reducing spray drift under all tested conditions For the 8001 nozzle, drift with air assist was significantly higher than in no wind condition for all nozzle pressures and orientations. For the 8003 nozzle, drift with air assist was in most cases not significantly different from that in no-wind condition. Nevertheless, there was significant interaction between nozzle pressure and orientation relative to the wind, indicating that drift reduction strategies should account for these factors.
Author : Robert Zimdahl
Publisher : Academic Press
ISBN 13 : 0323149421
Total Pages : 465 pages
Book Rating : 4.3/5 (231 download)
Download or read book Fundamentals of Weed Science written by Robert Zimdahl and published by Academic Press. This book was released on 2012-12-02 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Weed Science provides an introduction to the basic principles of weed science for undergraduate courses. It discusses several aspects of weed biology and control, and traces the history of herbicide development. The book begins with an introduction to weeds, covering their definition, characteristics, harmful aspects, and the cost of weed control. This is followed chapters on weed classification, the uses of weeds, weed biology, weed ecology, allelopathy, the significance of plant competition, weed management and control methods, and biological weed control. Later chapters deal with herbicidesthe most important weed control tools and the ones with the greatest potential for untoward effects. Students of weed science must understand herbicides and the factors governing their use as well as the potential for misuse. These chapters discuss chemical weed control, the properties and uses of herbicides, factors affecting herbicide performance, herbicide application, herbicide formulation, ecological impact of herbicides, pesticide registration and legislation, weed management systems, and the future of weed science.
Author : Heinz Ganzelmeier
Publisher :
ISBN 13 : 9783826330391
Total Pages : 111 pages
Book Rating : 4.3/5 (33 download)
Download or read book Studies on the Spray Drift of Plant Protection Products written by Heinz Ganzelmeier and published by . This book was released on 1995-01 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ilker H.Celen
Publisher :
ISBN 13 : 9789533074597
Total Pages : pages
Book Rating : 4.0/5 (745 download)
Download or read book Reducing Spray Drift written by Ilker H.Celen and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Faruque A. Khan
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (125 download)
Download or read book Validation Testing of Drift Reduction Technology Testing Protocol written by Faruque A. Khan and published by . This book was released on 2010 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: A number of pesticide application technologies offer the potential to reduce spray drift from pesticide applications. However, limited information exists on the effectiveness of these technologies in reducing spray drift. Working with a stakeholder technical panel under EPA's Environmental Technology Council, the Office of Pesticide Programs in EPA has developed and is in the process of validating a testing protocol to verify the effectiveness of drift reduction technologies (DRTs). The DRT testing protocol was adapted from standard test methods and regulatory methods used in other countries and describes the testing approach that will be used to generate high-quality, peer-reviewed data for DRTs, including test design and quality assurance aspects. Both low-speed and high-speed wind tunnel tests were completed using a reference nozzle and two test nozzles to evaluate the performance of the generic DRT testing protocol. By Summer 2010, EPA anticipates to finalize this testing protocol based on the test results performed by EPA and other stakeholders. As a next step, EPA intends to encourage equipment manufacturers to voluntarily use the protocol for testing their equipment. Tested technologies that are proven to significantly reduce spray drift may be considered for addition to pesticide product labels by pesticide registrants and by EPA in its risk assessment and management decisions for the registration of new pesticide and uses and registration review (reevaluation) of currently registered pesticides. Pesticide product labels citing the use of DRTs could have reduced restrictions for applications, provide applicators with greater flexibility, and result in less off-target pesticide deposition. This paper will provide an update of EPA's efforts to validate the DRT testing protocol and discuss future plans for using a validated protocol in evaluating DRTs in an effort to reduce load from unintended spray drift of pesticides in the environment.
