Herbicides

Herbicides PDF Author: Robin Mesnage
Publisher: Elsevier
ISBN: 0128236744
Category : Science
Languages : en
Pages : 366

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Book Description
"Addresses contemporary debates on herbicide toxicology. The reader is offered a comprehensive overview of this complex topic, presented by internationally recognized experts of different scientific disciplines."--

Environmental Chemistry of Herbicides

Environmental Chemistry of Herbicides PDF Author: Raj Grover
Publisher: CRC Press
ISBN: 9780849343773
Category : Science
Languages : en
Pages : 320

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Book Description
This publication is rare among those texts on pesticides in that it covers herbicides exclusively. It presents, in one source, information that is typically scattered. This important publication enables the reader to recommend herbicide use more reliably and efficiently. It also highlights environmental issues relevant to herbicide use in agriculture. The book outlines potential areas of further research. This title is of particular value to weed scientists, environmental chemists and engineers, soil scientists, and those responsible for recommending and/or regulating use of herbicides in agriculture. Focuses On: ? Increasing efficiency of herbicides in agriculture ? Decreasing environmental contamination with herbicides ? Dissipation and transformations in water and sediment ? Nature, transport, and fate of airborne residues ? Absorption and transport in plants ? Transformations in biosphere ? Bioaccumulation and food chain accumulation ? Photochemical transformations ? Bound residues ? Predictability and environmental chemistry

Herbicides Chemistry

Herbicides Chemistry PDF Author: Kearney
Publisher: CRC Press
ISBN: 9780824778040
Category : Science
Languages : en
Pages : 430

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Book Description
Conveniently gathering up-to-date information on herbicides' chemistry, degradation, and mode of action in one source, this reference discusses glyphosate and the traits that have made it so successful ... investigates the adsorption of polycyclic alkanoic acids' ester into targeted plants ... documents sulfonylureas' selectivity, environmental compatibility, groundwater safety, and low use rate ... explains metribuzin's combination with other herbicides to increase weed control for soybeans, potatoes, and tomatoes ... and examines alachlor and metolachlor for controlling annual grasses, broadleaf weeds, yellow nutsedge in corn, soybeans, and many other crops. Extensively referenced and illustrated, Herbicides, Volume 3 is an outstanding reference for soil scientists, agronomists, microbiologists, biochemists, agricultural chemists, botanists, environmental scientists, and plant nutritionists and pathologists. Book jacket.

Some Organophosphate Insecticides and Herbicides

Some Organophosphate Insecticides and Herbicides PDF Author: IARC Working Group on the Evaluation of Carcinogenic Risks to Humans
Publisher: World Health Organization
ISBN: 9789283201502
Category : Carcinogens
Languages : en
Pages : 0

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Book Description
This volume of the IARC Monographs provides evaluations of the carcinogenicity of some organophosphate insecticides and herbicides, including diazinon, glyphosate, malathion, parathion, and tetrachlorvinphos. Diazinon acts on a wide range of insects on crops, gardens, livestock, and pets, but most uses have been restricted in the USA, Canada, and the European Union since the 1980s. Glyphosate is the most heavily used agricultural and residential herbicide in the world, and has been detected in soil, air, surface water, and groundwater, as well as in food. Malathion is one of the oldest and most widely used organophosphate insecticides, and has a broad spectrum of applications in agriculture and public health, notably mosquito control. The insecticide parathion has been largely banned or restricted throughout the world due to toxicity to wildlife and humans. Tetrachlorvinphos is banned in the European Union, but continues to be used in the USA and elsewhere as an insecticide on animals, including in pet flea collars. The IARC Monographs Working Group reviewed epidemiological evidence, animal bioassays, and mechanistic and other relevant data to reach conclusions as to the carcinogenic hazard to humans of these agents.

Herbicides Chemistry

Herbicides Chemistry PDF Author: P.C. Kearney
Publisher: CRC Press
ISBN: 104028549X
Category : Science
Languages : en
Pages : 422

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Book Description
Volume 3: Conveniently gathering up-to-date information on herbicides' chemistry, degradation, and mode of action in one source, this reference discusses glyphosatc and the traits that have made it so successful ... investigates the adsorption of polycyclic alkanoic acids' ester into targeted plants ... documents sulfonylureas' selectivity, environmental compatibility, groundwater safety, and low use rate ... explains metribuzin's combination with other herbicides to increase weed control for soybeans, potatoes, and tomatoes ... and examines alachlor and metolachlor for controlling annual grasses, broadleaf weeds, yellow nutscdge in corn, soybeans, and many other crops. Extensively referenced and illustrated, Herbicides, Volume 3 is an outstanding reference for soil scientists, agronomists, microbiologists, biochemists, agricultural chemists, botanists, environmental scientists, and plant nutritionists and pathologists.

Glyphosate: Chemistry, Uses and Safety Concerns

Glyphosate: Chemistry, Uses and Safety Concerns PDF Author: Ron Quinn
Publisher:
ISBN: 9781536140026
Category : Glyphosate
Languages : en
Pages : 0

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Book Description
Chemical herbicides are widely used in food production throughout the world. At the present time, they represent approximately 40% of chemical products sales, followed by insecticides, fungicides, and other types of pesticides. Among these products, commercial formulations based on N-phosphonomethyl-glycine (PMG), commonly known as glyphosate, are the most used worldwide. Such herbicidal formulations play a key role in promoting crop yields. In Glyphosate: Chemistry, Uses and Safety Concerns review information on the presence of glyphosate-based herbicides in the environment, their potentially harmful effects, their influence on soil microbial communities and their capacity to adsorb to clay particles (which affects their environmental availability).The objective of the following work was to investigate the best way to achieve slow release of glyphosate using layered double hydroxides (LDHs) to minimize the environmental impacts of this herbicide. LDHs are also called anionic clays because they can host negatively charged species between their layers. They are best stabilized by anions with high charge density, such as carbonate. Understanding the release dynamics of glyphosate in homogeneous solutions of anions that are commonly found in the soil is important, since many crops require prior soil correction, altering the pH and also the availability of anions.In one study, the chelating capacity, coordination modes and structural chemistry of glyphosate with Ni (II) cations were investigated in solution and in the solid state. Glyphosate was purified from commercial Roundup WG (Monsanto), and characterized by 31P NMR, FTIR and melting point. The nickel complexes were prepared from Ni(NO3)2 solutions at pH = 8.0 and 4.0, and characterized by solid-state infrared spectroscopy (4000-150 cm-1) and elemental analysis (CHN). The solids were also studied by thermal analysis and X-ray absorption spectroscopy (XAS) using synchrotron radiation (LNLS, Brazil).Studies show that glyphosate has an oral absorption of 20 to 40% and is considered to be of low toxicity to mammals; however, recent research has shown that it can induce serious damage to mammalian cells. The authors examine suggested mechanisms of toxicity, including the blocking of mitochondrial oxidative phosphorylation, inhibition of cytochrome p450 activity, inhibition of intestinal arylhydrocarbohydroxylase activity, changes in glucose 6-phosphate dehydrogenase activity, DNA damage, hormonal changes, channel openings of calcium, and neurotoxicity involving NMDA receptor activation.The widespread and frequent use of glyphosate has increased concern about potential adverse effects on human health. Due to more stringent legislation on wastewater discharge and purity of drinking water, the authors discuss the development of an effective remediation technology for the decontamination of glyphosate. Although glyphosate residues can efficiently be removed by advanced technologies, the treatments are usually expensive and difficult to maintain. Therefore, different methods and options should be considered.

The Triazine Herbicides

The Triazine Herbicides PDF Author: Janis Mc Farland Ph.D.
Publisher: Elsevier
ISBN: 0080559638
Category : Technology & Engineering
Languages : en
Pages : 604

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Book Description
Over the past 50 years, triazines have made a great impact on agriculture and world hunger by assisting in the development of new farming methods, providing greater farming and land use capabilities, and increasing crop yields. Triazines are registered in over 80 countries and save billions of dollars a year. The Triazine Herbicides is the one book that presents a comprehensive view of the total science and agriculture of these chemicals. With emphasis on how the chemicals are studied and developed, reviewed, and used at the agricultural level this book provides valuable insight into the benefits of triazine herbicides for sustainable agriculture. - Presents previously unpublished information on the discovery, development and marketing of herbicides - Includes a vital section on the origin, use, economics and fate of triazine herbicides - Covers benefits of triazines in corn and sorghum, sugarcane, citrus, fruit and nut crops - Establishes best management practice and environmental benefits of use in conservation tillage

Environmental Chemistry of Herbicides

Environmental Chemistry of Herbicides PDF Author: Raj Grover
Publisher: CRC Press
ISBN: 1040292917
Category : Science
Languages : en
Pages : 311

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Book Description
This publication is rare among those texts on pesticides in that it covers herbicides exclusively. It presents, in one source, information that is typically scattered. This important publication enables the reader to recommend herbicide use more reliably and efficiently. It also highlights environmental issues relevant to herbicide use in agriculture. The book outlines potential areas of further research. This title is of particular value to weed scientists, environmental chemists and engineers, soil scientists, and those responsible for recommending and/or regulating use of herbicides in agriculture. Focuses On: Increasing efficiency of herbicides in agriculture Decreasing environmental contamination with herbicides Dissipation and transformations in water and sediment Nature, transport, and fate of airborne residues Absorption and transport in plants Transformations in biosphere Bioaccumulation and food chain accumulation Photochemical transformations Bound residues Predictability and environmental chemistry

Operation Ranch Hand

Operation Ranch Hand PDF Author: William A. Buckingham
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 272

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Book Description


Metabolic Pathways of Agrochemicals

Metabolic Pathways of Agrochemicals PDF Author: Terry R Roberts
Publisher: Royal Society of Chemistry
ISBN: 1847551386
Category : Technology & Engineering
Languages : en
Pages : 872

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Book Description
This important publication provides a comprehensive summary of data and information on the metabolism and chemical degradation of agrochemicals in soils, plants and animals. Part 1, Herbicides and Plant Growth Regulators, and Part 2, Insecticides and Fungicides, together provide a major bibliography, as each entry is fully referenced. Contents include metabolic products, pathways and mechanisms, together with useful details on physico-chemical properties and mode of action. Both parts are organised by class of chemical for easy reference. There are separate entries for each pesticide, covering most commercially available chemicals in use today. In addition, an overview of the metabolism of each major class provides the reader with an informed summary of key similarities and significant differences between individual chemicals. Information is based primarily on literature from the past 40 years of research, together with some important, previously unpublished work provided by the agrochemical companies. Presented in a systematic, easy-to-read style, with extensive indexing to facilitate the rapid location of required information and the comparison of related compounds, Metabolic Pathways of Agrochemicals is an invaluable reference for chemists, biochemists and biologists working in the discovery, development and registration of agrochemicals, as well as scientists in related areas such as design and mode of action of pharmaceuticals.