Download or read book Relative Efficacy of Chemical and Cultural Weed Management Practices for the Control of Grassy Weeds in Wheat Triticum Aestivum L written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecological Management of Agricultural Weeds written by Matt Liebman and published by Cambridge University Press. This book was released on 2001-07-19 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents principles and practices for ecologically based weed management in a wide range of temperate and tropical farming systems. Special attention is given to the evolutionary challenges that weeds pose and the roles that farmers can play in the development of new weed-management strategies.
Download or read book Efficacy and Economics of Cultural and Mechanical Weed Control Practices for Herbicide resistant Weed Management written by Elizabeth G. Mosqueda and published by . This book was released on 2019 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proactive herbicide resistant weed management (HRWM) practices are underused in many cropping systems. This may be due, in part, to a lack of knowledge on the impact of non-herbicide management practices on herbicide-resistant (HR) weed development. By determining the efficacy and economic impacts of non-herbicide weed management on development of herbicide resistance, we hope to prolong the efficacy of herbicides, thereby reducing the evolution and spread of new HR weed species. A four year study was conducted in the Northern Great Plains to evaluate the impacts of tillage, crop rotation, and herbicide regime on ALS-resistant kochia (Bassia scoparia) development, economic feasibility, and enrichment of herbicide resistance over time. Crops with more dense canopies and closely spaced rows and treated with non ALS-herbicides significantly reduced kochia emergence compared to crops with less dense canopies and treated with ALS-herbicides only. Over time, more diverse crop rotations and treating with ALS-herbicide mixtures resulted in reduced kochia density, seed production, and additions to the weed seedbank compared to less diverse crop rotations and ALS-herbicide rotations. The final year of the study, increased yields and returns over variable cost and owner’s labor were observed within a four crop rotation opposed to monoculture, two, and three crop rotations. Enrichment of resistance over time was found to have little to no influence between less and more diverse cultural, mechanical, and chemical weed management programs.
Download or read book Principles Of Crop Production written by Reddy S.R. and published by . This book was released on 2008-01-01 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Summit on Strategies to Manage Herbicide Resistant Weeds written by National Research Council and published by National Academies Press. This book was released on 2012-11-22 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preserving the efficacy of herbicides and of herbicide-resistance technology depends on awareness of the increasing resistance of weeds to herbicides used in agriculture and coordinated action to address the problem by individuals at the farm level and beyond. This summit served as a venue to bring the attention of important stakeholders to the issue and as an opportunity for experts from diverse disciplines to strategize in a coordinated way to address herbicide-resistant weeds. In convening stakeholders for this event, participants took a step toward a recommendation from the 2010 National Research Council report The Impact of Genetically Engineered Crops on Farm Sustainability in the United States that federal and state government agencies, private-sector technology developers, universities, farmer organizations, and other relevant stakeholders collaborate to document emerging weed-resistance problems and to develop cost-effective resistance-management programs and practices that preserve effective weed control. The summit provided the opportunity for stakeholders to explore the scientific basis of the emergence of herbicide resistance and to consider different perspectives on both opportunities and barriers to overcoming the problem of herbicide-resistant weeds. National Summit on Strategies to Manage Herbicide-Resistant Weeds contains a brief synopsis of key points made by each speaker at the summit.
Download or read book Non Chemical Weed Control written by Khawar Jabran and published by Academic Press. This book was released on 2018-01-03 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-Chemical Weed Control is the first book to present an overview of plant crop protection against non-food plants using non-chemical means. Plants growing wild—particularly unwanted plants found in cultivated ground to the exclusion of the desired crop—have been treated with herbicides and chemical treatments in the past. As concern over environmental, food and consumer safety increases, research has turned to alternatives, including the use of cover crops, thermal treatments and biotechnology to reduce and eliminate unwanted plants. This book provides insight into existing and emerging alternative crop protection methods and includes lessons learned from past methodologies. As crop production resources decline while consumer concerns over safety increase, the effective control of weeds is imperative to insure the maximum possible levels of soil, sunlight and nutrients reach the crop plants. - Allows reader to identify the most appropriate solution based on their individual use or case - Provides researchers, students and growers with current concepts regarding the use of modern, environment-friendly weed control techniques - Presents methods of weed management—an important part of integrated weed management in the future - Exploits the knowledge gained from past sustainable weed management efforts
Download or read book Weed Crop Competition written by Robert L. Zimdahl and published by John Wiley & Sons. This book was released on 2007-11-19 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the past 20 years, the first edition of this text has been widely cited as authoritative academic reference. The latest edition continues the tradition set by the original book, and covers weed science research that has been published since 1980. This book aims to reduce the instance of research duplication—saving scientists and supporting institutions time and money. Not only does the second edition of Weed Crop Competition review, summarize, and combine current research; it critiques the research as well. This text has the potential to accelerate advancements in weed crop competition, which remains an important factor that affects crop yields. Scientists in foreign countries where access to literature is often limited or nonexistent, will find the information in this text invaluable. Weed scientists, crop scientists, plant ecologists, sustainable agriculturists, and organic agriculturists will be well-pleased with this long overdue and much needed new editionWeed Crop Competition provides a unique reference that reviews, summarises and synthesizes the literature published concerning research on this topic. The first edition has been one of the most frequently cited sources in weed science for the past 20 years. The second edition covers the significant body of literature that has been published since 1980. Originally intended to survey existing research, the intent of the book is to reduce the instance of research duplication, thus saving scientists and their institutions time and money, and expediting advancements in weed crop competition, an important factor affecting crop yields. Scientists in foreign countries where access to the literature is often limited or non-existent, find the information an invaluable resource. This long overdue and much needed new edition rejuvenates the tradition set by the original book.
Download or read book Herbicide Resistance in Weeds and Crops written by J. C. Caseley and published by Elsevier. This book was released on 2013-10-22 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herbicide Resistance in Weeds and Crops is a collection of papers presented at the 11th Long Ashton International Symposium in September 1989. The said symposium is held to study about the increasing incidence of herbicide-resistant weeds and the consideration of the production of herbicide-resistant crops. The book includes studies that suggest the delay and prevention of herbicide resistance; the gravity of the infestation of different herbicide-resistant weed; the management of herbicide resistance; and the mechanisms of herbicide tolerance. Also covered in the book are the improvement of different herbicides, as well as the prospective development of genetically engineered herbicide-resistant plants. Botanists, biochemists, and farmers would greatly benefit from the text, especially those who would like to explore and study the phenomenon.
Download or read book Guidelines for Weed Control written by United States. Agricultural Research Service and published by . This book was released on 1973 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Efficacy of Separate and Premix Formulation of Herbicides on Weeds written by Rakesh Kumar and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat (Triticum aestivum L.) is second most important food grain crop of India and is associated with the food security of the country.India needs more food around 105 million tonnes for feeding the increasing population by 2020 A.D. and this demand has to be met primarily from wheat crop as this is the only assured food crop which production and productivity could be sustained. Further wheat area is decreasing every year and there is very little scope for expansion of area in the future. So there is urgent need to vertical increase in yield per hectare to ensure household food security.Herbicide rotation and use of herbicide mixture are two major strategies to prevent the selection of resistant biotypes of a weed species. Herbicides with different mode of action when mixed together, bind to different target site in weeds and prevent the probability of target site resistance in susceptible species. Today, most of the commercially available herbicides are mixture of grassy and non-grassy herbicides and have efficiency against these types of weeds only. Therefore, targeted weed control mixtures are required to prevent resistance in one or more weed species.
Download or read book FeHEDTA written by Canada. Pest Management Regulatory Agency and published by . This book was released on 2010 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Health Canada's Pest Management Regulatory Agency (PMRA), under the authority of the Pest Control Products Act and Regulations, is proposing full registration for the sale and use of NEU1173H TGAI and the end-use products; NEU1173H RTU with Pull'N Spray Applicator, NEU1173H RTU with Quick Connect Sprayer, NEU1173H RTU, Fiesta Lawn Weed Killer Ready to Spray, Fiesta Lawn Weed Killer, NEU1173H Ready to Spray Large Size, NEU1173H Ready to Spray, NEU1173H Large Size, and NEU1173H, containing the technical grade active ingredient iron present as FeHEDTA (herein referred to as FeHEDTA), to control several broadleaved weed species that commonly occur in turf. This document summarizes PMRA's evaluation. The Overview describes the key points of the evaluation, while the Science Evaluation provides detailed technical information on the human health, environmental and value assessments of NEU1173H TGAI and the end-use products. Before making a final registration decision on FeHEDTA, the PMRA will consider all comments received from the public in response to this consultation document.--Includes text from document.
Download or read book Chemical Weed Control in Wheat Triticum Aestivum L written by M. Asif Shehzad and published by LAP Lambert Academic Publishing. This book was released on 2011-04 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat (Triticum aestivum L.) is an important cereal crop of the world and staple food of Pakistan's people. Over the last few years, weed flora infestation has become a key disaster in crop production. The quality of wheat produce from weed infected fields is inferior because these compete with crop plants for space, light and nutrients, harbor plant pathogens, create hurdles in cultural practices and mixing of their seeds with wheat grains. Owing to weeds infestation, tremendous changes in crop production have been assumed all over the world. This book, therefore, focuses on the use of different post emergence herbicides to reduce growth and spread of weeds from reaching at mature stage when they are extremely harmful to wheat plants. The importance of weed control in achieving better production of wheat is discussed in the light of results.
Download or read book Weed Biology and Management written by Inderjit and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weeds hold an enigmatic and sometimes-controversial place in agriculture, where they are generally reviled, grudgingly tolerated, and occasionally admired. In most cases, growers make considerable effort to reduce the negative economic impact of weeds because they compete with crops for resources and hinder field operations, thereby affecting crop productivity and quality, and ultimately the sustainability of agriculture. Weed control in production agriculture is commonly achieved through the integration of chemical, biological, and mechanical management methods. Chemicals (herbicides) usually inhibit the growth and establishment of weed plants by interfering with various physiological and biochemical pathways. Biological methods include crop competition, smother crops, rotation crops, and allelopathy, as well as specific insect predators and plant pathogens. Mechanical methods encompass an array of tools from short handled hoes to sophisticated video-guided robotic machines. Integrating these technologies, in order to relieve the negative impacts of weeds on crop production in a way that allows growers to optimize profits and preserve human health and the environment, is the science of weed management.
Download or read book Efficacy of Herbicides and Their Mixtures on Weed Control in Wheat Triticum Aestivum L written by Arun Jaggi and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weed and Crop Resistance to Herbicides written by Rafael de Prado and published by Springer Science & Business Media. This book was released on 1997-05-31 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent decades, repeated use of herbicides in the same field has imposed selection for resistance in species that were formerly susceptible. On the other hand, considerable research in the private and public sectors has been directed towards introducing herbicide tolerance into susceptible crop species. The evolution of herbicide resistance, understanding its mechanisms, characterisation of resistant weed biotypes, development of herbicide-tolerant crops and management of resistant weeds are described throughout the 36 chapters of this book. It has been written by leading researchers based on the contributions made at the International Symposium on Weed and Crop Resistance to Herbicides held at Córdoba, Spain. This book will be a good reference source for research scientists and advanced students.
Download or read book CHEMCIAL CONTROL OF GRASSY WEEDS IN WHEAT TRITICUM AESTIVUM L written by Muhammad Yasin and published by LAP Lambert Academic Publishing. This book was released on 2011-02 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat is the most widely grown cereal grain crop and staple food of people in the world. Among many other factors of low yield in wheat, one of the most serious but less addressed causes is the presence of weeds. Weeds compete with crops for nutrients, light, space, moisture and cause reduction in wheat vigor, tillering, head size, kernel weight. Weeds lower the market value of the produce and hence bring economic losses to the growers. Chemical weed control is preferred over other weed control methods like manual weeding, mechanical weeding, intercropping, crop rotation and stale seed bed technique because it is quick, more effective and relatively cheaper. Grassy (narrow leaved) weeds like Phalaris minor, Avena fatua, Hordeum vulgare and Cyperus rotandus are the serious problem in wheat.This book describes identification of different grassy weeds present in wheat fields and most economical herbicides for controlling these weeds, especially against P. minor.
Download or read book Weed Control Using Herbicides and Planting Pattern in Wheat written by Tesfay Amare and published by . This book was released on 2014-08-09 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
