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Effects Of Adjuvants And Dynamic Surface Tension On Spray Properties Under Simulated Aerial Conditions
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Book Synopsis Effects of Adjuvants and Dynamic Surface Tension on Spray Properties Under Simulated Aerial Conditions by : WR. Dexter
Download or read book Effects of Adjuvants and Dynamic Surface Tension on Spray Properties Under Simulated Aerial Conditions written by WR. Dexter and published by . This book was released on 1998 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The literature on the effects of active ingredients, adjuvants and surface active agents on the droplet size of agricultural sprays is reviewed. The effects of various agricultural adjuvants on the droplet size distributions of a herbicide sprayed in a wind tunnel simulating an aerial application were determined using a Malvern laser diffraction instrument. All adjuvants caused a decrease in droplet size, which varied with adjuvant type and concentration. Measurements of equilibrium surface tension, dynamic surface tension at 20 ms, density, and viscosity were recorded. Droplet size did not correlate linearly with equilibrium surface tension: only at the lowest surface tensions was any significant decrease in droplet size observed. Droplet size correlated better with dynamic surface tension for each adjuvant over most of the surface tension range, but with different slopes for each adjuvant. At high concentrations of surfactant, bubbles of air were observed within captured droplets and the size distribution became bimodal.
Book Synopsis Pesticide Formulations and Application Systems by : John D. Nalewaja
Download or read book Pesticide Formulations and Application Systems written by John D. Nalewaja and published by ASTM International. This book was released on 1998 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optimising Pesticide Use by : Michael Wilson
Download or read book Optimising Pesticide Use written by Michael Wilson and published by John Wiley & Sons. This book was released on 2004-01-09 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optimising Pesticide Use brings together the wide range of scientific disciplines necessary to ensure best practice through monitoring what is used and improving how it is formulated and applied. The book provides: An in-depth exploration of pesticide optimisation from the view point of industry and research scientist A case study on the development of a new range of active chemistries from bacteria A discussion of complementary pest control methods This text will provide essential information to workers in the pesticide industry and regulatory community who need to be aware of current thinking and advancements in the optimal use of pesticidal compounds and systems, as well as environmental organisations and aid development organisations.
Book Synopsis The Impact of Spray Adjuvants on Solution Physical Properties and Spray Droplet Size by : Bradley K. Fritz
Download or read book The Impact of Spray Adjuvants on Solution Physical Properties and Spray Droplet Size written by Bradley K. Fritz and published by . This book was released on 2018 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past several years, numerous anecdotes from aerial applicators have surfaced concerning observations of increased numbers of fine droplets seen in the applied spray clouds, often associated with tank mixtures that contain crop-oil concentrates (COCs) and foliar fertilizers (FFs). Efforts were made herein to correlate surface tension and viscosity to spray droplet size under a variety of aerial application conditions, but these efforts were unsuccessful. In addition, spray mixtures were examined to compare relative evaporation rates. Researchers are encouraged to actively pursue this line of work. The addition of several adjuvants and FFs were found to significantly affect spray droplet size, so applicators should pay careful attention to spray tank composition when making aerial spray applications.
Download or read book Weed Technology written by and published by . This book was released on 2001 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Adjuvants and Agrochemicals by : Paul N. P. Chow
Download or read book Adjuvants and Agrochemicals written by Paul N. P. Chow and published by CRC Press. This book was released on 2018-01-18 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies of Adjuvants involve many scientific fields from basic research of the chemistry, through investigations into physiological effects and environmental impact, to mixture formulation and field use. These important areas are illustrated in these two volumes, which are contributions from the First International Symposium on Adjuvants for Agrochemicals, held in Brandon, Manitoba on August 5 to 7, 1986. A total of 200 participants from 19 countries met to discuss their common interest in adjuvant science, technology, and application. It is the editors hope that these volumes will stimulate interest in and promote a better understanding of the chemical, physiological, and agronomic aspects of adjuvants as they relate agrochemicals. In addition, the revisedAdjuvants for Agrochemicals: A Selected Bibliography of World Literature in the English Language will be a valuable resource for agricultural researchers and other users. We hope that adjuvant research will lead to even safer, more efficient, and more economical use of chemicals in agriculture and forestry.
Book Synopsis Physico-Chemical Properties, In-Flight Evaporation and Spread of Spray Droplets Containing Pesticide Adjuvants by : RA. Downer
Download or read book Physico-Chemical Properties, In-Flight Evaporation and Spread of Spray Droplets Containing Pesticide Adjuvants written by RA. Downer and published by . This book was released on 1993 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: In-flight evaporation, droplet spread on water sensitive paper, equilibrium surface tension, and dynamic surface tension were measured for each of 12 adjuvants mixed with water. The correlation between the physico-chemical properties and droplet spread was determined. The results indicated that the adjuvants had significant and varied effects upon the parameters that were measured. Speculative rankings were derived for (A) evaporation rates and (B) spreading potentials. The rankings were compared with manufacturer's claims for the adjuvants and the results are discussed in terms of the benefits to be derived from using these products in pesticide applications.
Book Synopsis Forest Research Institute Report by : Forest Research Institute (N.Z.)
Download or read book Forest Research Institute Report written by Forest Research Institute (N.Z.) and published by . This book was released on 1989 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applications of Dynamic Surface Tension to Adjuvants and Emulsion Systems by : CH. Berger
Download or read book Applications of Dynamic Surface Tension to Adjuvants and Emulsion Systems written by CH. Berger and published by . This book was released on 1992 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic surface tension (DST) measurements were obtained using the Maximum Bubble Pressure Technique for various adjuvant and emulsion systems. These results were compared with traditional test methods for adjuvants and emulsion systems.
Book Synopsis The Effects of Air Turbulence and Dynamic Surface Tension on Air Assist Atomization by : Uri Shavit
Download or read book The Effects of Air Turbulence and Dynamic Surface Tension on Air Assist Atomization written by Uri Shavit and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report of the Forest Research Institute, Rotorua, for the Period by : Forest Research Institute (N.Z.)
Download or read book Report of the Forest Research Institute, Rotorua, for the Period written by Forest Research Institute (N.Z.) and published by . This book was released on 1985 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Adjuvants at High Spray Pressures for Aerial Applications by : W. Clint Hoffmann
Download or read book The Effect of Adjuvants at High Spray Pressures for Aerial Applications written by W. Clint Hoffmann and published by . This book was released on 2016 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 formulated herbicide spray solution, with and without additional adjuvants. Generally, the spray solution effects followed trends seen in previous studies, with crop oil-containing adjuvants resulting in the largest droplet-sized sprays and the silicones and polymers the smallest. Increasing spray pressure increased droplet size across all combinations of nozzle, airspeed, and spray solution, without exception. The most promising results from this work showed that for typical high-end application airspeeds, increasing spray pressure from the lowest to highest pressures tested generally resulted in spray classifications increasing at least one size coarser. The results from this work demonstrate that larger, faster-flying agricultural aircraft can adopt current methods, with potentially minor equipment adjustments, to generate medium and larger spray qualities and to allow for more efficient applications while meeting agrochemical product label requirements.
Book Synopsis Technology in Agriculture by : Fiaz Ahmad
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.
Book Synopsis Physiology of Herbicide Action by : Malcolm Devine
Download or read book Physiology of Herbicide Action written by Malcolm Devine and published by Prentice Hall. This book was released on 1993 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to herbicide action; Reaching the target; Oxigen toxicity and herbicidal action; Microtubule disruptors; Herbicide effects on lipid synthesis; Nucleic acid and protein synthesis inhibitors; Inhibition of amino acid biosysnthesis; Herbicides with auxin activity; Other sites of herbicide action; Secondary physiological effects of herbicides; Herbicide interactions with herbicides, synergists, and safeners; Naturally occurring chemicals as herbicides.
Book Synopsis Atomization and Sprays by : Arthur H. Lefebvre
Download or read book Atomization and Sprays written by Arthur H. Lefebvre and published by CRC Press. This book was released on 2017-03-27 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this long-time bestseller provides a framework for designing and understanding sprays for a wide array of engineering applications. The text contains correlations and design tools that can be easily understood and used in relating the design of atomizers to the resulting spray behavior. Written to be accessible to readers with a modest technical background, the emphasis is on application rather than in-depth theory. Numerous examples are provided to serve as starting points for using the information in the book. Overall, this is a thoroughly updated edition that still retains the practical focus and readability of the original work by Arthur Lefebvre.
Book Synopsis Mineral Nutrition of Higher Plants by : Horst Marschner
Download or read book Mineral Nutrition of Higher Plants written by Horst Marschner and published by Gulf Professional Publishing. This book was released on 1995 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents the principles of mineral nutrition in the light of current advances. For this second edition more emphasis has been placed on root water relations and functions of micronutrients as well as external and internal factors on root growth and the root-soil interface.
Book Synopsis Freezing Colloids: Observations, Principles, Control, and Use by : Sylvain Deville
Download or read book Freezing Colloids: Observations, Principles, Control, and Use written by Sylvain Deville and published by Springer. This book was released on 2017-01-19 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview of the freezing of colloidal suspensions and explores cutting-edge research in the field. It is the first book to deal with this phenomenon from a multidisciplinary perspective, and examines the various occurrences, their technological uses, the fundamental phenomena, and the different modeling approaches. Its chapters integrate input from fields as diverse as materials science, physics, biology, mathematics, geophysics, and food science, and therefore provide an excellent point of departure for anyone interested in the topic. The main content is supplemented by a wealth of figures and illustrations to elucidate the concepts presented, and includes a final chapter providing advice for those starting out in the field. As such, the book provides an invaluable resource for materials scientists, physicists, biologists, and mathematicians, and will also benefit food engineers, civil engineers, and materials processing professionals.
