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Author : Jacqueline M. Benson
Publisher : Food & Agriculture Org.
Page : 76 pages
File Size : 52,6 Mb
Release : 1982
Category : Technology & Engineering
ISBN : 9251012067
Author : Jürgen Kranz,H. Schmutterer,Werner Koch
Publisher : Unknown
Page : 756 pages
File Size : 54,9 Mb
Release : 1977
Category : Agricultural pests
ISBN : CORNELL:31924001306707
Diseases in tropical crops; Pests in tropical crops; Weeds in tropical crops.
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 55,7 Mb
Release : 1981
Category : Electronic
ISBN : OCLC:636127595
Author : I. Okezie Akobundu
Publisher : John Wiley & Sons
Page : 560 pages
File Size : 41,9 Mb
Release : 1987
Category : Herbicides
ISBN : CORNELL:31924058889886
Excessive weed growth is one of the most serious problems facing farmers throughout the tropics. There is a need for professionally trained weed scientists to become involved in research at the highest level, where existing technologies can be further developed and new ones generated.
Author : Matt Liebman,Charles L. Mohler,Charles P. Staver
Publisher : Cambridge University Press
Page : 546 pages
File Size : 50,6 Mb
Release : 2001-07-19
Category : Science
ISBN : 9781139427241
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.
Author : Rangaswamy Muniappan,Gadi V. P. Reddy,Anantanarayanan Raman
Publisher : Cambridge University Press
Page : 509 pages
File Size : 40,6 Mb
Release : 2009-03-05
Category : Business & Economics
ISBN : 9780521877916
This book discusses the biological control of weeds using arthropods, providing ecological management models for use across the tropical world.
Author : Inderjit
Publisher : Springer Science & Business Media
Page : 550 pages
File Size : 42,5 Mb
Release : 2013-11-11
Category : Science
ISBN : 9789401705523
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.
Author : Bhagirath Chauhan
Publisher : Elsevier
Page : 433 pages
File Size : 52,5 Mb
Release : 2021-09-04
Category : Science
ISBN : 9780128229354
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 : P. J. van Rijn
Publisher : Kit Pub
Page : 250 pages
File Size : 51,7 Mb
Release : 2000
Category : Gardening
ISBN : WISC:89084445386
The abundant weed growth in the humid and sub-humid tropics is one of the most serious constraints in producing crops, establishing pastures and maintaining water resources. This book presents historic and recent data on the biology of weeds and their control, within the general context of the husbandry of crops and the management of pastures and aquatic situations. The first seven chapters cover the nature of negative values of weeds, principles of weed ecology, weed control and establishment of farming and cropping systems in tropical regions, performance of crops in the tropical ecosystems, main weeds in the forest regions, and main weeds in the savannah regions. Chapter 8 deals with weed control methods in general and chapters 9 to 14 with weed control in various crops. Chapter 15 covers weeds and their control in pastures, and chapter 16 aquatic weed management.
Author : R. J. Stephens
Publisher : Unknown
Page : 228 pages
File Size : 46,7 Mb
Release : 1982
Category : Herbicides
ISBN : WISC:89031298540
Effects of weed infestation on crop yield and quality; The origins, dispersal and characteristics of weeds; One years's seed, seven years' weeds; Special weed problems; Weed control without herbicides; Herbicides; Herbicide application; Herbicides and crop and soil management; Row crops grown as annuals or biennials; Perennial crops of archards and plantations; Weed control in turf, ornamentals and forest trees; Future developments in weed control.
Author : F. W. G. Baker,P. J. Terry
Publisher : Cab Publishing
Page : 232 pages
File Size : 54,5 Mb
Release : 1991
Category : Cyperaceae
ISBN : WISC:89037118676
Weeds are the cause of great losses to crop production in the tropics and grassy weeds present a particular problem because of their similarity to cereal crop plants. It is therefore difficult to devise control methods and management practices appropriate for such weeds. This book reviews our current knowledge of this subject and is the outcome of a workshop on integrated control of grassy weeds in tropical subsistence farming systems, held in Nairobi in February 1990. The workshop was organised by CASAFA (Commission on the Application of Science to Agriculture, Forestry and Aquaculture) of the International Council of Scientific Unions. The contents include a general review of grassy weeds, their physiology in tropical agriculture, management by biological and chemical control, integrated weed management, control in tropical cereals, in tropical grasslands and forage crops, in mixed crops and in upland rice, and overviews of grassy weeds in Kenya, the Phillipines and Australia.
Author : Bruce Archibald Auld,Kil-Ung Kim
Publisher : Food & Agriculture Org.
Page : 296 pages
File Size : 40,5 Mb
Release : 1996
Category : Gardening
ISBN : 9251039127
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
Page : 408 pages
File Size : 41,6 Mb
Release : 1994
Category : Gardening
ISBN : 9251034273
Author : Steven R. Radosevich,Jodie S. Holt,Claudio Ghersa
Publisher : John Wiley & Sons
Page : 860 pages
File Size : 53,9 Mb
Release : 1997-02-05
Category : Gardening
ISBN : 0471116068
Weeds are successful plants, but on their own terms. Looking at weeds from an ecological viewpoint, emphasising the way in which one species interacts with others, the authors show that weeds are questionable mainly in that they are out-of-place.
Author : Thomas J. Monaco,Stephen C. Weller,Floyd M. Ashton
Publisher : John Wiley & Sons
Page : 688 pages
File Size : 51,8 Mb
Release : 2002-05-23
Category : Technology & Engineering
ISBN : 9780471274964
The updated edition of the classic, fundamental book on weedscience Weed Science provides a detailed examination ofthe principles of integrated weed management with important detailson how chemical herbicides work and should be used. This revisedFourth Edition addresses recent developments affecting weedscience. These include the increased use of conservation-tillagesystems, environmental concerns about the runoff of agrochemicals,soil conservation, crop biotechnology, resistance of weeds andcrops to herbicides, weed control in nonagricultural settings andconcerns regarding invasive plants, wetland restoration, and theneed for a vastly improved understanding of weed ecology. Current management practices are covered along with guidance forselecting herbicides and using them effectively. To serve as a moreefficient reference, herbicides are cross-listed by chemical andbrand name and grouped by mechanism of action and physiologicaleffect rather than chemical structure. In addition, an introductionto organic chemistry has been added to familiarize readers withorganic herbicides. Also included are guidelines on weed-controlpractices for specific crops or situations, such as small grains,row crops, horticultural crops, lawns and turf, range land, brush,and aquatic plant life. Generously supplemented with 300 drawings, photographs, andtables, Weed Science is an essential book for students taking anintroductory course in weed science, as well as a reference foragricultural advisors, county agents, extension specialists, andprofessionals throughout the agrochemical industry.
