Download or read book Field Evaluation of Low dose Metering and Polymer Endothall Applications and Comparison of Fluridone Degradation from Liquid and Slow release Pellet Applications written by Michael D. Netherland and published by . This book was released on 1998 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Evaluation of Low dose Metering and Polymer Endothall Applications and Comparison of Fluridone Degradation from Liquid and Slow release Pellet Applications written by Michael D. Netherland and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field studies were conducted to evaluate three herbicide delivery system techniques. Metering pumps were used to apply low rates of endothall (0.4 mg/L) over a 72- to 96-hr period for control of sago pondweed in western irrigation canals. Treatments were evaluated for efficacy and feasibility to use under a variety of flow conditions. Treatments effectively controlled sago pondweed, and the development of a prototype metering pump greatly improved the feasibility of conducting treatments in remote settings where flow rates often vary greatly within a 24-hr period. In addition to metering technology, a new granular supersorbent polymer formulation of endothall that contains 61 percent active ingredient was evaluated in Lake Weohyapapka, Florida. These evaluations were conducted to compare efficacy and applicator handling properties versus the conventional clay formulation (10.1-percent active ingredient). The new formulation required 85 percent less bulk material than the conventional clay and presented no problems with dust creation. Although no differences in efficacy on hydrilla were noted between the products, reduced applicator exposure through decreased product handling and the time required for herbicide application were all seen as significant benefits of the new formulation. Lastly, the slow-release pellet (SRP) of the herbicide fluridone was applied to research ponds near Gainesville, FL, to improve the understanding of the release properties of this product. Following application of rates calculated to achieve 150 micrograms/L, the liquid aqueous suspension (AS) and SRP showed distinct differences in residues and dissipation. Initial concentrations following SRP application were reduced fivefold compared with the AS, whereas, the half-life of the SRP was estimated to be fivefold greater than that of the AS.

Download or read book Field Evaluation of Low dose Metering and Polymer Endothall Applications and Comparison of Fluridone written by Michael D. Netherland and published by . This book was released on 1998 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Weed Technology written by and published by . This book was released on 2008 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Managing Lakes and Reservoirs written by North American Lake Management Society and published by University of Wisconsin Press. This book was released on 2001 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written for the lake user, this third edition testifies to the success and the leadership of EPA's Clean Lakes Program.

Download or read book Aquatic Plant Control written by and published by . This book was released on 1979 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pesticide Profiles written by Michael A. Kamrin and published by CRC Press. This book was released on 1997-03-12 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pesticide Profiles: Toxicity, Environmental Impact, and Fate is like three books in one-it is a profile containing specific information about 137 pesticides, a primer of environmental toxicology, and an extensive trade name index. Profiles of each pesticide contain regulatory information, toxicity assessments, environmental fate data, physical properties, and acceptable exposure limit values. What these values and data mean in terms of human toxicity is clearly interpreted as well. The book also describes the meaning of carcinogenicity and how it is assessed in non-technical terms the non-expert can understand. Readers with a technical background are provided with the data to make their own judgments. In addition to information about specific pesticides, there are sections on general classes of pesticides, such as organophosphates. This information allows readers to make inferences about any pesticide in a class, even if a profile is not provided. Pesticide Profiles: Toxicity, Environmental Impact, and Fate goes beyond the usual listings of toxicity values or environmental half-lives to offer a broad understanding to readers of various backgrounds and interests.

Download or read book Channel Catfish Farming Handbook written by Craig C. Tucker and published by Springer Science & Business Media. This book was released on 1990-12-31 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Weed Science written by Thomas J. Monaco and published by John Wiley & Sons. This book was released on 2002-05-23 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: The updated edition of the classic, fundamental book on weedscience Weed Science provides a detailed examination ofthe principles of integrated weed management with important detailson how chemical herbicides work and should be used. This revisedFourth Edition addresses recent developments affecting weedscience. These include the increased use of conservation-tillagesystems, environmental concerns about the runoff of agrochemicals,soil conservation, crop biotechnology, resistance of weeds andcrops to herbicides, weed control in nonagricultural settings andconcerns regarding invasive plants, wetland restoration, and theneed for a vastly improved understanding of weed ecology. Current management practices are covered along with guidance forselecting herbicides and using them effectively. To serve as a moreefficient reference, herbicides are cross-listed by chemical andbrand name and grouped by mechanism of action and physiologicaleffect rather than chemical structure. In addition, an introductionto organic chemistry has been added to familiarize readers withorganic herbicides. Also included are guidelines on weed-controlpractices for specific crops or situations, such as small grains,row crops, horticultural crops, lawns and turf, range land, brush,and aquatic plant life. Generously supplemented with 300 drawings, photographs, andtables, Weed Science is an essential book for students taking anintroductory course in weed science, as well as a reference foragricultural advisors, county agents, extension specialists, andprofessionals throughout the agrochemical industry.

Download or read book Plant Growth Substances written by Richard N. Arteca and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a convenient, single-source reference, this book examines plant growth substances and their relationship to a wide range of physiological processes, ranging from seed germination through the death of the plant. If offers a clear illustration of the pragmatic uses of plant substances in agriculture and demonstrates how basic laboratory research has translated into increased production and profit for the grower. This work begins by building a solid foundation in the subject, which contains historical aspects and fundamental concepts, and provides a methodology for extraction, purification, and quantification of plant growth substances. This forms the basis for understanding the ensuing chapters that explore the many processes involving plant growth substances, including: * seed germination * seedling growth * rooting * dormancy * juvenility * maturity * senescence * flowering * abscission * fruit set * fruit growth * fruit development * premature drop * ripening * promotion of fruit drop * tuberization * photsynthesis * weed control. Providing a detailed examination of plant growth substances and their relationships to specific physiological plant processes, Plant Growth Substances gives students, researchers, and professionals a much needed reference.

Download or read book Recent Advances in Weed Management written by Bhagirath S. Chauhan and published by Springer. This book was released on 2014-07-10 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses recent developments in weed science. These developments include conservation agriculture and conservation tillage, climate change, environmental concerns about the runoff of agrochemicals, resistance of weeds and crops to herbicides, and the need for a vastly improved understanding of weed ecology and herbicide use. The book provides details on harnessing knowledge of weed ecology to improve weed management in different crops and presents information on opportunities in weed management in different crops. Current management practices are also covered, along with guidance for selecting herbicides and using them effectively. Written by experts in the field and supplemented with instructive illustrations and tables, Recent Advances in Weed Management is an essential reference for agricultural specialists and researchers, government agents, extension specialists, and professionals throughout the agrochemical industry, as well as a foundation for advanced students taking courses in weed science.

Download or read book Aquatic Plant Control Research Program written by and published by . This book was released on 1991 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pond Aquaculture Water Quality Management written by Claude E. Boyd and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: The efficient and profitable production of fish, crustaceans, and other aquatic organisms in aquaculture depends on a suitable environment in which they can reproduce and grow. Because those organisms live in water, the major environ mental concern within the culture system is water quality. Water supplies for aquaculture systems may naturally be oflow quality or polluted by human activity, but in most instances, the primary reason for water quality impairment is the culture activity itself. Manures, fertilizers, and feeds applied to ponds to enhance production only can be partially converted to animal biomass. Thus, at moderate and high production levels, the inputs of nutrients and organic matter to culture units may exceed the assimilative capacity of the ecosystems. The result is deteriorating water quality which stresses the culture species, and stress leads to poor growth, greater incidence of disease, increased mortality, and low produc tion. Effluents from aquaculture systems can cause pollution of receiving waters, and pollution entering ponds in source water or chemicals added to ponds for management purposes can contaminate aquacultural products. Thus, water quality in aquaculture extends into the arenas of environmental protection and food quality and safety. A considerable body of literature on water quality management in aquaculture has been accumulated over the past 50 years. The first attempt to compile this information was a small book entitled Water Quality in Warmwater Fish Ponds (Boyd I 979a).

Download or read book To Spray Or Not to Spray written by and published by . This book was released on 1995 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Herbicide Manual written by Gary W. Hansen and published by . This book was released on 1984 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Paraquat and Diquat written by and published by . This book was released on 1984 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Target Assays for Modern Herbicides and Related Phytotoxic Compounds written by Peter Boger and published by CRC Press. This book was released on 1992-12-15 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Target Assays for Modern Herbicides and Related Phytotoxic Compounds is a laboratory guide that features 38 comprehensive contributions to determine and quantitate the inhibition activity of modern herbicides and related phytotoxic compounds at their targets. Using algal or higher-plant model species as well as cell-free enzymatic systems, assays are described for use with modern equipment typically found in a biochemical laboratory. Many details of the tests described in this volume are being published for the first time. Assays discussed include carotenoid and chlorophyll biosynthesis and degradation, photosynthetic electron transport, amino acid biosynthesis, fatty acid formation, and cell division. Some model systems and related topics are also described. Each chapter represents an easy-to-read recipe with minimal theory including some key references for further reading. Original data from the experiments are provided, and most of the notable laboratories around the world are represented. Target Assays for Modern Herbicides and Related Phytotoxic Compounds features updated methodology and procedures that will be a tremendous asset to plant biochemists; agriculture, plant protection, and weed control experts; agrochemical herbicide specialists in industry and government; and students in agricultural biochemistry and physiology.