Economic of weed con PDF Download

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 16

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Author: Bruce Archibald Auld
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 200

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FROM THE PREFACE: Weeds reduce agricultural output and/or add to the costs of production and are therefore important economically. Moreover weed research scientists, administrators, and farmers make decisions about allocating resources (i.e. make economic decisions) every day. Weed control and economics are inseparable in an agricultural production context and the economic effects of weeds are diverse and complex. In this book we have endeavoured to present a broad but penetrating view of the impact of weeds and assessment of their control. The book is aimed to provide agricultural scientists, administrators, advisors, and students with a greater appreciation of the economic impact of weeds and of the economic assessment of weed control strategies and methods. For agricultural economists, the book will provide an agronomic background and an economic framework for tackling issues in weed control and research.

Author: Khawar Jabran
Publisher: Academic Press
ISBN: 0128098821
Category : Science
Languages : en
Pages : 174

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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

Author: Bhagirath Chauhan
Publisher: Elsevier
ISBN: 0128229357
Category : Science
Languages : en
Pages : 433

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Weeds are the main biological constraint to crop production throughout the year. Uncontrolled weeds could cause 100% yield loss. In Australia, the overall cost of weeds to Australian grain growers was estimated at AU$ 3.3 billion annually. In terms of yield losses, weeds amounted to 2.7 million tonnes of grains at a national level. In the USA, weeds cost US$ 33 billion in lost crop production annually. In India, these costs were estimated to be much higher (US$ 11 billion). These studies from different economies suggest that weeds cause substantial yield and economic loss. Biology and Management of Problematic Weed Species details the biology of key weed species, providing vital information on seed germination and production, as well as factors affecting weed growth. These species include Chenopodium album, Chloris truncata and C. virgate, Conyza bonariensis and C. canadensis, Cyperus rotundus, and many more. This information is crucial for researchers and growers to develop integrated weed management (IWM) strategies. Written by leading experts across the globe, this book is an essential read to plant biologists and ecologists, crop scientists, and students and researchers interested in weed science. Provides detailed information on the biology of different key weed species Covers weed seed germination and emergence Presents the factors affecting weed growth and seed production

Author: Ronald Eugene Stewart
Publisher:
ISBN:
Category : Weeds
Languages : en
Pages : 28

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Author: David Peter Stonehouse
Publisher: Guelph, Ont. : Department of Agricultural Economics & Business, University of Guelph
ISBN:
Category : Field crops
Languages : en
Pages : 80

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Author: Joseph Jojo Baidu-Forson
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 478

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Author: Clay M. Hamilton
Publisher:
ISBN:
Category : Cotton
Languages : en
Pages : 216

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Author: Robert L Zimdahl
Publisher: Elsevier
ISBN: 0123815029
Category : Science
Languages : en
Pages : 220

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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

Author: European Weed Research Society
Publisher:
ISBN:
Category :
Languages : en
Pages :

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