Download or read book A History of Weed Science in the United States written by Robert L Zimdahl and published by Elsevier. This book was released on 2010-02-04 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is important that scientists think about and know their history - where they came from, what they have accomplished, and how these may affect the future. Weed scientists, similar to scientists in many technological disciplines, have not sought historical reflection. The technological world asks for results and for progress. Achievement is important not, in general, the road that leads to achievement. What was new yesterday is routine today, and what is described as revolutionary today may be considered antiquated tomorrow. Weed science has been strongly influenced by technology developed by supporting industries, subsequently employed in research and, ultimately, used by farmers and crop growers. The science has focused on results and progress. Scientists have been--and the majority remain--problem solvers whose solutions have evolved as rapidly as have the new weed problems needing solutions. In a more formal sense, weed scientists have been adherents of the instrumental ideology of modern science. That is an analysis of their work, and their orientation reveals the strong emphasis on practical, useful knowledge; on know how. The opposite, and frequently complementary orientation, that has been missing from weed science is an emphasis on contemplative knowledge; that is, knowing why. This book expands on and analyzes how these orientations have affected weed science's development. - The first analytical history of weed science to be written - Compares the development of weed science, entomology and plant pathology - Identifies the primary founders of weed science and describes their role

Download or read book Alfalfa Management Guide written by D. J. Undersander and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Alfalfa Management Guide is designed especially for busy growers, with to-the-point recommendations, useful images of diseased plants and pests, and quick-reference tables and charts. Revised in 2011, this edition of Alfalfa Management Guide covers the latest strategies for alfalfa establishment, production, and harvest-soil testing, fertilizing, integrated pest management, rotation, and more.

Download or read book New Directions for Biosciences Research in Agriculture written by National Research Council and published by National Academies Press. This book was released on 1985-01-01 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authored by an integrated committee of plant and animal scientists, this review of newer molecular genetic techniques and traditional research methods is presented as a compilation of high-reward opportunities for agricultural research. Directed to the Agricultural Research Service and the agricultural research community at large, the volume discusses biosciences research in genetic engineering, animal science, plant science, and plant diseases and insect pests. An optimal climate for productive research is discussed.

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.

Download or read book Genetically Engineered Crops written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-01-28 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetically engineered (GE) crops were first introduced commercially in the 1990s. After two decades of production, some groups and individuals remain critical of the technology based on their concerns about possible adverse effects on human health, the environment, and ethical considerations. At the same time, others are concerned that the technology is not reaching its potential to improve human health and the environment because of stringent regulations and reduced public funding to develop products offering more benefits to society. While the debate about these and other questions related to the genetic engineering techniques of the first 20 years goes on, emerging genetic-engineering technologies are adding new complexities to the conversation. Genetically Engineered Crops builds on previous related Academies reports published between 1987 and 2010 by undertaking a retrospective examination of the purported positive and adverse effects of GE crops and to anticipate what emerging genetic-engineering technologies hold for the future. This report indicates where there are uncertainties about the economic, agronomic, health, safety, or other impacts of GE crops and food, and makes recommendations to fill gaps in safety assessments, increase regulatory clarity, and improve innovations in and access to GE technology.

Download or read book Chemical Pesticides Mode of Action and Toxicology written by Jørgen Stenersen and published by CRC Press. This book was released on 2004-05-27 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental-friendliness, issues of public health, and the pros and cons of genetically-modified crops all receive regular coverage in the world's media. This, in turn, has led to increased questioning and investigation of chemical pesticides. Stenersen's concise and timely introduction to chemical pesticides describes these compounds according to their mode of action at the cellular and biochemical level. Chemical Pesticides provides answers to questions such as why pesticides are toxic to the target organism and why pesticides are toxic to some organisms and not others. It describes how various poisons interfere with biochemical processes in organisms. The book also explores how resistance to pesticides develops, how resistance can be used to illustrate the theory of evolution, and how it can be used to produce herbicide-resistant crop plants. Legal matters and potential environmental problems are also discussed. By providing an integrated, yet simple description of modern chemical pesticides, the author provides a relevant text for professionals and students in biological disciplines such as biochemistry, medicine, agriculture, and veterinary science.

Download or read book Abiotic Disorders of Landscape Plants written by Laurence Raleigh Costello and published by UCANR Publications. This book was released on 2003 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual contains a wealth of information to help you diagnose abiotic disorders in landscape plants – disorders caused by environmental, physiological or other nonbiological factors. You’ll learn how to diagnose injury symptoms from over 20 different abiotic agents including water deficit, nutrient deficiencies, salinity, pH, sunburn, air pollution, herbicide and other chemical phytotoxicities, mechanical injuries, lightning, wind, and hail. You’ll also learn how to develop a step-by-step diagnostic strategy. Included are strategies, techniques, and tools you can use in diagnosing plant problems, common injury symptoms and their abiotic causes, and plant traits that can resemble abiotic disorders. Illustrated with 319 color photographs and 38 tables, this book is a "must-have" for the library of every landscape professional.

Download or read book Ambient Aquatic Life Water Quality Criteria for Atrazine written by and published by . This book was released on 2001 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diagnosing Hemp and Cannabis Crop Diseases written by Shouhua Wang and published by CABI. This book was released on 2021-08-18 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hemp and cannabis, both belonging to Cannabis sativa, have emerged as some of the most valuable crops because of their multiple functionalities - industrial, medicinal, and recreational uses. Like all other crops, they are at risk of diseases and pests. In certain cases, an entire hemp field can fail due to unexpected disease. As a new and highly regulated crop, research on Cannabis crop diseases is scarce, and the science of plant diagnostics is not well covered in the literature. Taking hemp/cannabis as a model crop, the book illustrates how to diagnose a disease problem and how to manage it effectively. It presents real disease cases encountered during crop production, and explains methods of diagnosis, both in the field and in the lab, in order to find out the cause(s).

Download or read book Weeds of Cotton written by C. G. McWhorter and published by . This book was released on 1992 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pesticide related Illness and Injury Surveillance written by and published by . This book was released on 2005 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report INT written by and published by . This book was released on 1990 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pesticides in the Diets of Infants and Children written by National Research Council and published by National Academies Press. This book was released on 1993-02-01 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the pesticides applied to food crops in this country are present in foods and may pose risks to human health. Current regulations are intended to protect the health of the general population by controlling pesticide use. This book explores whether the present regulatory approaches adequately protect infants and children, who may differ from adults in susceptibility and in dietary exposures to pesticide residues. The committee focuses on four major areas: Susceptibility: Are children more susceptible or less susceptible than adults to the effects of dietary exposure to pesticides? Exposure: What foods do infants and children eat, and which pesticides and how much of them are present in those foods? Is the current information on consumption and residues adequate to estimate exposure? Toxicity: Are toxicity tests in laboratory animals adequate to predict toxicity in human infants and children? Do the extent and type of toxicity of some chemicals vary by species and by age? Assessing risk: How is dietary exposure to pesticide residues associated with response? How can laboratory data on lifetime exposures of animals be used to derive meaningful estimates of risk to children? Does risk accumulate more rapidly during the early years of life? This book will be of interest to policymakers, administrators of research in the public and private sectors, toxicologists, pediatricians and other health professionals, and the pesticide industry.

Download or read book Herbicides written by Andrew Price and published by BoD – Books on Demand. This book was released on 2015-12-02 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herbicides are one of the most widely used groups of pesticides worldwide for controlling weedy species in agricultural and non-crop settings. Due to the extensive use of herbicides and their value in weed management, herbicide research remains crucial for ensuring continued effective use of herbicides while minimizing detrimental effects to ecosystems. Presently, a wide range of research continues to focus on the physiology of herbicide action, the environmental impact of herbicides, and safety. The authors of Herbicides, Physiology of Action, and Safety cover multiple topics concerning current valuable herbicide research.

Download or read book Sittig s Handbook of Pesticides and Agricultural Chemicals written by Richard P. Pohanish and published by William Andrew. This book was released on 2014-09-06 with total page 1006 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference handbook provides fully updated chemical, regulatory, health, and safety information on nearly 800 pesticides and other agricultural chemicals. The clear, consistent and comprehensive presentation of information makes Sittig's an essential reference for a wide audience including first responders, environmental and industrial health/safety professionals, the food industry, the agricultural sector and toxicologists. Detailed profiles are provided for each substance listed, including: usage; crop-specific residue limits; hazard ratings for long-term human toxicity; and endocrine disruptor and reproductive toxicity information. Every chemical profile contains references and web links to source information from the EPA, OSHA, the World Health Organization (WHO), and other important advisory and lawmaking bodies. This work is focused on regulated chemicals. The substances covered include pesticides, insecticides, herbicides, fungicides, rodenticides and related agricultural chemicals used on foods grown and produced for both human and animal consumption. These products are organized with common names, chemical synonyms, trade names, chemical formulae, US EPA pesticide codes, EU regulations including Hazard Symbol and Risk Phrases, EINECS, RTECS, CAS, and other unique identifiers so that all who may have contact with, or interest in them can find needed information quickly. - A comprehensive reference for the agricultural sector, food industry, agrochemical manufacturing and distribution sector, and first responders - Brings together a wealth of hazard and response, regulatory and toxicological information in one convenient go-to handbook - Covers US, EU and worldwide regulatory requirements

Download or read book Intermountain Alfalfa Management written by Steve B. Orloff and published by UCANR Publications. This book was released on 1997-06-01 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive guide for western alfalfa growers brings together the most current information and recommendations in nearly all areas of alfalfa management, including stand establishment, fertilization, irrigation, pest management, and harvesting

Download or read book Advances in Rice Research for Abiotic Stress Tolerance written by Mirza Hasanuzzaman and published by Woodhead Publishing. This book was released on 2018-11-12 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Rice Research for Abiotic Stress Tolerance provides an important guide to recognizing, assessing and addressing the broad range of environmental factors that can inhibit rice yield. As a staple food for nearly half of the world's population, and in light of projected population growth, improving and increasing rice yield is imperative. This book presents current research on abiotic stresses including extreme temperature variance, drought, hypoxia, salinity, heavy metal, nutrient deficiency and toxicity stresses. Going further, it identifies a variety of approaches to alleviate the damaging effects and improving the stress tolerance of rice. Advances in Rice Research for Abiotic Stress Tolerance provides an important reference for those ensuring optimal yields from this globally important food crop. - Covers aspects of abiotic stress, from research, history, practical field problems faced by rice, and the possible remedies to the adverse effects of abiotic stresses - Provides practical insights into a wide range of management and crop improvement practices - Presents a valuable, single-volume sourcebook for rice scientists dealing with agronomy, physiology, molecular biology and biotechnology