Download or read book Effect of Herbicides on Weed Management in Rice Sunflower Croppingsystem written by B. Santi and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weed Science and Weed Management in Rice and Cereal Based Cropping Systems 2 Volumes written by Aurora M. Baltazar and published by John Wiley & Sons. This book was released on 2023-03-29 with total page 1145 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents discussions on: Biology and ecology of major troublesome weeds infesting rice, wheat, corn, soybean, focusing on different cropping patterns in both tropical and temperate cropping systems and science-based weed management practices involving chemical, non-chemical, biological, integrated methods. Herbicides used, with their most recent classification, identification of new target sites, mechanisms and modes of action and how and why weeds evolve resistance to herbicides. New concepts, new paradigms and new technologies to manage evolution of resistance to herbicides including weed genomics, bioherbicides and allelochemicals. Highly recommended for students, teachers, researchers, agronomists, horticulturists, crop physiologists, and crop protection specialists in tropical and temperate agricultural systems, particularly in areas where major tropical weeds are posing potential threats to temperate agricultural systems.
Download or read book WEED MANAGEMENT IN ORGANICALLY GROWN SUNFLOWER CROPPING SYSTEM written by J. Bhuvaneswari and published by Infotech Publishers. This book was released on 2022-10-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: INTRODUCTION Maize (Zea mays L.) is one of the most important cereal crops in the global agricultural economy both as food for human beings and as a feed for animals a crop of immense potentiality and is therefore called the 'Queen of Cereals'. Maize is the third most important cereal crop in the world agricultural economy after wheat and rice with an area of 137.97 million hectares and with a production of 609.18 million tonnes with average productivity of 442 kg ha-1. In India, it occupies 7.42 million hectares with production and productivity of 14.72 million tonnes and 1983 kg ha-1, respectively (Singh et al., 2007). Maize is grown in Tamil Nadu in about 2.0 lakh ha with a total production of 2.41 lakh tonnes and productivity of 1189 kg ha-1 (Season and Crop Report, 2005-06).
Download or read book Herbicides in Asian Rice written by Rosamond Naylor and published by Int. Rice Res. Inst.. This book was released on 1996 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overview; Impacts of herbicides; Integrated weed management; Use of herbicides in asian rice.
Download or read book A Handbook for Weed Control in Rice written by Kwesi Ampong-Nyarko and published by Int. Rice Res. Inst.. This book was released on 1991 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Significance of weeds in rice farming; Rice weeds of world importance; Weed control; Principles of herbicide use; Principal rice herbicides; Weed control in irrigated rice; Weed control in rainfed lowland rice; Weed control in upland rice; Weed control in deepwater and floating rice; Management of some difficult weeds.
Download or read book Weed Management in Rice written by Bruce Archibald Auld and published by Food & Agriculture Org.. This book was released on 1996 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integrated Weed Management for Sustainable Agriculture written by Robert Zimdahl and published by Burleigh Dodds Series in Agric. This book was released on 2017-12-14 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weeds remain a major obstacle to improved yields in agriculture. At the same time, established methods of control are being undermined by problems such as herbicide resistance. This major collection reviews key developments in integrated weed management (IWM) to manage weeds more sustainably.
Download or read book Weed Science and Weed Management in Rice and Cereal Based Cropping Systems written by Aurora M. Baltazar and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Weed Science and Weed Management in Rice and Rice-Based Cropping Systems will describe the history, production systems and practices of rice cropping systems in major rice-growing countries, and how the unique production practices affect crop-weed relationships which in turn affect weed management practices. It will also attempt to provide an understanding of the basic weed science principles as they apply to tropical cropping situations to be able to compare how weeds behave under multi-crop tropical systems and mono-crop mechanized temperate cropping systems. The ultimate purpose is to be able to apply these basic principles in order to develop improved, efficient, and economically and environmentally sustainable strategies in managing or controlling weeds. This book will discuss the various management methods: chemical, cultural, mechanical, biological, integrated, focusing on the most recent research, particularly on new herbicide chemistries and modes of action, molecular biology and weed genomics and on evolution of herbicide-resistant weeds. For non-chemical (mechanical) control, it will focus on recent developments on robotics and automated weed control and for biocontrol, on the new bioherbicides derived from plant and microbial toxins being developed in the past 5 years. On the most challenging problem in chemical control nowadays, the evolution of herbicide-resistant weeds, recent researches to elucidate resistance mechanisms and use of weed genomics to understand how weeds adapt and evolve resistance to herbicides and the search for practices that could delay adaptation capabilities are also discussed"--
Download or read book Effects of Herbicide Tolerant Crop Cultivation written by Michel Beckert and published by Springer. This book was released on 2017-02-20 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overall, this work identifies key points to be taken into account when drawing up guidelines that govern the use of herbicide-tolerant (HT) crops in order to preserve the effectiveness of this innovation over time. This multidisciplinary expert report, based on an international literature review, assesses the effects of the cultivation of crops possessing HT traits. HT crops may appear to be useful complementary tools when farmers are facing certain difficult weed-management situations or in the context of a diversification of weed-control strategies. Their repeated use, however, can rapidly induce changes in the weed flora that can constitute more complex challenges in terms of weed control. Issues coming up with the development of agricultural production systems including HT crops are the objects of this expert report: what are the perceptions of these varieties by society and the reasons for their adoption by farmers? Are the savings on herbicides promoted by seed companies long-lasting? Can the cultivation of HT crops impact biodiversity?
Download or read book Herbicide Resistance in Weeds and Crops written by Zvonko Pacanoski and published by BoD – Books on Demand. This book was released on 2017-10-04 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herbicides are the dominant technology and the most effective weed control tools ever developed that are used for the control of weeds that infest crops. Over the last several decades, in situations of intense herbicide usage, there have been many examples of the evolution of weed populations resistant to herbicides. Weed adaptations to management tactics, including biochemical mimicry in the form of evolved resistance to the herbicides used for weed control, have increased rapidly throughout agriculture and now threaten global food security. Nowadays, expended space of research activities remains to focus on the herbicide resistance to weeds and crops. The authors of Herbicide Resistance in Weeds and Crops cover various issues regarding the present relevant research.
Download or read book Recent Advances in Weed Management written by Bhagirath S. Chauhan and published by Springer. This book was released on 2014-07-10 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses recent developments in weed science. These developments include conservation agriculture and conservation tillage, climate change, environmental concerns about the runoff of agrochemicals, resistance of weeds and crops to herbicides, and the need for a vastly improved understanding of weed ecology and herbicide use. The book provides details on harnessing knowledge of weed ecology to improve weed management in different crops and presents information on opportunities in weed management in different crops. Current management practices are also covered, along with guidance for selecting herbicides and using them effectively. Written by experts in the field and supplemented with instructive illustrations and tables, Recent Advances in Weed Management is an essential reference for agricultural specialists and researchers, government agents, extension specialists, and professionals throughout the agrochemical industry, as well as a foundation for advanced students taking courses in weed science.
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 WEED MGMT IN AGROECOSYSTEMS written by Miguel A. Altieri and published by Springer. This book was released on 1988-08-31 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chapters of this book describe the physiological, population and community ecology of weeds within agroecosystems, with the goal of recognizing details of relevant approaches for better weed management
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 Utilization of Weeds as Source of Nutrients in Maize sunflower and Aerobic Rice Rice Cropping Systems Influence on Productivity Soil Health and Functional Crop Growth Models written by G.R Denesh and published by . This book was released on 2008 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Allelopathy in Ecological Agriculture and Forestry written by S.S. Narwal and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapidly growing human population has increased the dependence on fossil fuel based agrochemicals such as fertilizers and pesticides to produce the required agricultural and forestry products. This has exerted a great pressure on the non renewable fossil fuel resources, which cannot last indefinitely. Besides, indiscriminate use ofpesticides for pests (weeds, insects, nematodes, pathogens) control has resulted in serious ecological and environmental problems viz. , (A) Increasing incidence of resistance in pest organisms to important pesticides. (B) Shift in pests population, particulary in weeds and insects. In weeds, species that are more closely related to the crops they infest have developed. In insects, scenario is most grim, the predators have been killed and minor insect pests have become major pests and require very heavy doses ofhighly toxic insecticides for their control. (C) Greater environmental pollution and health hazards (a) particularly from contamination of surface and underground drinking water resources and (b) from their inhalation during handling and application. (D) Toxic residues of pesticides pollute the environment and may prove hazardous to even our future generations. (E) Some agricultural commodities may contain minute quantities ofpesticides residues, with long tenn adverse effects on human and livestock health. Therefore, serious ecological questions about the reliance on pesticides for pests control has been raised. The use of fertilizers, besides causing environmental problems has also impoverished the soil health and decreased the beneficial soil fauna. For example, in some major crop rotations viz.
Download or read book Crop Response to Herbicides and Weed Control written by Patrick Osaroh Idehen and published by . This book was released on 1984 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
