Herbicide Field Evaluation Trials On Field Crops 1972
Download Herbicide Field Evaluation Trials On Field Crops 1972 full books in PDF, epub, and Kindle. Read online free Herbicide Field Evaluation Trials On Field Crops 1972 ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Pesticide Use in U.S. Agriculture
Author | : Jorge Fernandez-Cornejo |
Publisher | : |
Total Pages | : 0 |
Release | : 2015 |
Genre | : |
ISBN | : |
Pesticide use has changed considerably over the past five decades. Rapid growth characterized the first 20 years, ending in 1981. The total quantity of pesticides applied to the 21 crops analyzed grew from 196 million pounds of pesticide active ingredients in 1960 to 632 million pounds in 1981. Improvements in the types and modes of action of active ingredients applied along with small annual fluctuations resulted in a slight downward trend in pesticide use to 516 million pounds in 2008. These changes were driven by economic factors that determined crop and input prices and were influenced by pest pressures, environmental and weather conditions, crop acreages, agricultural practices (including adoption of genetically engineered crops), access to land-grant extension personnel and crop consultants, the cost-effectiveness of pesticides and other practices in protecting crop yields and quality, technological innovations in pest management systems/practices, and environmental and health regulations. Emerging pest management policy issues include the development of glyphosate-resistant weed populations associated with the large increase in glyphosate use since the late 1990s, the development of Bt-resistant western corn rootworm in some areas, and the arrival of invasive or exotic pest species, such as soybean aphid and soybean rust, which can influence pesticide use patterns and the development of Integrated Pest Management programs.
Pesticides in the Diets of Infants and Children
Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 402 |
Release | : 1993-02-01 |
Genre | : Science |
ISBN | : 0309048753 |
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.
Veterans and Agent Orange
Author | : Committee to Review the Health Effects in Vietnam Veterans of Exposure to Herbicides |
Publisher | : National Academies Press |
Total Pages | : 791 |
Release | : 1994-01-15 |
Genre | : Medical |
ISBN | : 9780309075299 |
Have U.S. military personnel experienced health problems from being exposed to Agent Orange, its dioxin contaminants, and other herbicides used in Vietnam? This definitive volume summarizes the strength of the evidence associating exposure during Vietnam service with cancer and other health effects and presents conclusions from an expert panel. Veterans and Agent Orange provides a historical review of the issue, examines studies of populations, in addition to Vietnam veterans, environmentally and occupationally exposed to herbicides and dioxin, and discusses problems in study methodology. The core of the book presents What is known about the toxicology of the herbicides used in greatest quantities in Vietnam. What is known about assessing exposure to herbicides and dioxin. What can be determined from the wide range of epidemiological studies conducted by different authorities. What is known about the relationship between exposure to herbicides and dioxin, and cancer, reproductive effects, neurobehavioral disorders, and other health effects. The book describes research areas of continuing concern and offers recommendations for further research on the health effects of Agent Orange exposure among Vietnam veterans. This volume will be critically important to both policymakers and physicians in the federal government, Vietnam veterans and their families, veterans organizations, researchers, and health professionals.
Weeds Reported in Rice in South and Southeast Asia
Author | : Keith Moody |
Publisher | : Int. Rice Res. Inst. |
Total Pages | : 551 |
Release | : 1989 |
Genre | : Technology & Engineering |
ISBN | : 9711042061 |
Rice weeds are listed by rice culture by country. The lists were compiled from a comprehensive review of the literature on rice weeds and their control in 15 South and Southeast Asian countries.
Pesticide Residues in Food, 1992 Evaluations
Author | : |
Publisher | : Food & Agriculture Org. |
Total Pages | : 908 |
Release | : 1993 |
Genre | : Food contamination |
ISBN | : 9789251033418 |
Guidelines for Predicting Crop Water Requirements
Author | : J. Doorenbos |
Publisher | : |
Total Pages | : 202 |
Release | : 1975 |
Genre | : Crops |
ISBN | : |
Calculation of crop evapotranspiration; Selection of crop coeficient; Calculation of field irrigation requirements.
Residue Reviews
Author | : Francis A. Gunther |
Publisher | : Springer Science & Business Media |
Total Pages | : 313 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 146125874X |
Worldwide concern in scientific, industrial, and governmental com munities over traces of toxic chemicals in foodstuffs and in both abiotic and biotic environments has justified the present triumvirate of specialized publications in this field: comprehensive reviews, rapidly published progress reports, and archival documentations. These three publications are integrated and scheduled to provide in international communication the coherency essential for nonduplicative and current progress in a field as dynamic and complex as environmental contamination and toxicology. Until now there has been no journal or other publication series reserved exclusively for the diversified literature on "toxic" chemicals in our foods; our feeds, our geographical surroundings, our domestic animals, our wild life, and ourselves. Around the world immense efforts and many talents have been mobilized to technical and other evaluations of natures, locales, magnitudes, fates, and toxicology of the persisting residues of these chemicals loosed upon the world. Among the sequelae of this broad new emphasis has been an inescapable need for an articulated set of authorita tive publications where one could expect to find the latest important world literature produced by this emerging area of science together with documentation of pertinent ancillary legislation.