Author: National Research Council
Publisher: The Minerva Group, Inc.
ISBN: 9780894991806
Category : Business & Economics
Languages : en
Pages : 192
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Book Description
This National Academy of Sciences report describes ways to exploit aquatic weeds for grazing, and by harvesting and processing for use as compost, animal feed, pulp, paper, and fuel. The book also describes utilization for sewage and industrial wastewater.Aquatic weeds have always existed, but in recent decades their effects have been magnified by man?s more intensive use of natural water bodies - his modifying them into canals and dams, polluting them with farm and city wastewaters, and introducing aggressive plant species into new locations. These plants, among the most prolific on earth, grow luxuriantly in the tropics, weigh hundreds of tons per hectare, and can be a serious hindrance to a nation?s development efforts. Eradication of the weeds has proved impossible, and even reasonable control is difficult. Turning these weeds to productive use would be desirable, but only limited research has been carried out.This report examines methods for controlling aquatic weeds and using them to best advantage, especially those methods that show promise for less-developed countries. It emphasizes techniques for converting weeds for feed, food, fertilizer, and energy production. It examines, for example, biological control techniques in which herbivorous tropical animals (fish, waterfowl, rodents, and other mammals) convert the troublesome plants directly to meat.
Author:
Publisher: National Academies
ISBN:
Category : Aquatic plants
Languages : en
Pages : 196
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Book Description
Author:
Publisher:
ISBN: 9781469665085
Category :
Languages : en
Pages : 184
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Book Description
Aquatic Weeds: A Pocket Identification Guide for the Carolinas is a practical resource containing color images and descriptions of aquatic weed species commonly found in North Carolina and South Carolina. Prepared by aquatic weed specialists and researchers at NC State University, this guide provides information about each species, including identifying characteristics, habitat, and potential human-health concerns. This guide is printed on water-resistant paper, making it the perfect field companion for researchers and lake managers alike.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309172942
Category : Technology & Engineering
Languages : en
Pages : 325
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Book Description
Although chemical pesticides safeguard crops and improve farm productivity, they are increasingly feared for their potentially dangerous residues and their effects on ecosystems. The Future Role of Pesticides explores the role of chemical pesticides in the decade ahead and identifies the most promising opportunities for increasing the benefits and reducing the risks of pesticide use. The committee recommends R&D, program, and policy initiatives for federal agriculture authorities and other stakeholders in the public and private sectors. This book presents clear overviews of key factors in chemical pesticide use, including: Advances in genetic engineering not only of pest-resistant crops but also of pests themselves. Problems in pesticide useâ€"concerns about the health of agricultural workers, the ability of pests to develop resistance, issues of public perception, and more. Impending shifts in agricultureâ€"globalization of the economy, biological "invasions" of organisms, rising sensitivity toward cross-border environmental issues, and other trends. With a model and working examples, this book offers guidance on how to assess various pest control strategies available to today's agriculturist.
Author: National Research Council
Publisher: National Academies Press
ISBN: 030917578X
Category : Technology & Engineering
Languages : en
Pages : 160
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Book Description
Widespread use of broad-spectrum chemical pesticides has revolutionized pest management. But there is growing concern about environmental contamination and human health risksâ€"and continuing frustration over the ability of pests to develop resistance to pesticides. In Ecologically Based Pest Management, an expert committee advocates the sweeping adoption of ecologically based pest management (EBPM) that promotes both agricultural productivity and a balanced ecosystem. This volume offers a vision and strategies for creating a solid, comprehensive knowledge base to support a pest management system that incorporates ecosystem processes supplemented by a continuum of inputsâ€"biological organisms, products, cultivars, and cultural controls. The result will be safe, profitable, and durable pest management strategies. The book evaluates the feasibility of EBPM and examines how best to move beyond optimal examples into the mainstream of agriculture. The committee stresses the need for information, identifies research priorities in the biological as well as socioeconomic realm, and suggests institutional structures for a multidisciplinary research effort. Ecologically Based Pest Management addresses risk assessment, risk management, and public oversight of EBPM. The volume also overviews the history of pest managementâ€"from the use of sulfur compounds in 1000 B.C. to the emergence of transgenic technology. Ecologically Based Pest Management will be vitally important to the agrichemical industry; policymakers, regulators, and scientists in agriculture and forestry; biologists, researchers, and environmental advocates; and interested growers.
Author: Cindy Jenson-Elliott
Publisher: Simon and Schuster
ISBN: 1442441267
Category : Juvenile Nonfiction
Languages : en
Pages : 40
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Book Description
Weeds are wonderful! Persistent, exuberant…these plants have personalities, and this nonfiction picture book puts them on colorful display! From bright yellow dandelions popping through cracks in sidewalks to purple loosestrife growing rampant along roadways, weeds offer unexpected splashes of color and life to the least likely of places. With lovely language and a sly sense of humor, this beautiful picture book celebrates the tenacious temperaments of these pesky plants and is sure to have little ones chanting, “Way to go, weeds!”
Author: Lyn A. Gettys
Publisher:
ISBN: 9780615326467
Category : Aquatic weeds
Languages : en
Pages : 200
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Book Description
Biology and Control of Aquatic Plants: A Best Management Practices Handbook is the fourth edition of a handbook produced by the not for profit Aquatic Ecosystem Restoration Foundation (AERF). The mission of the AERF is to support research and development which provides strategies and techniques for the environmentally and scientifically sound management, conservation and restoration of aquatic ecosystems. One way the Foundation accomplishes this mission is by producing this handbook to provide information to the public regarding the benefits of aquatic ecosystem conservation and aquatic plant management. The first, second and third editions of this handbook became some of the most widely consulted references in the aquatic plant management community. This fourth edition has been specifically designed with water resource managers, water management associations, homeowners and customers and operators of aquatic plant management companies and districts in mind. Our goal in preparing this handbook is to provide basic, scientifically sound information to assist decision-makers with their water management questions.
Author: Susan Borman
Publisher:
ISBN: 9780972366519
Category : Aquatic plants
Languages : en
Pages : 256
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Book Description
Author: Gerald E. Walsh
Publisher:
ISBN:
Category : Aquatic weeds
Languages : en
Pages : 36
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Book Description
Author: R. Büttner
Publisher: Springer Science & Business Media
ISBN: 9783540410171
Category : Science
Languages : en
Pages : 3698
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Book Description
With contributions by numerous experts
