Download or read book The Soil Resource written by Hans Jenny and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: change is simply described by the rate of income and rate of loss. Our home's energy budget, our firm's inventory, our nation's debt, and humanity's numbers all have accounts that change at rates that are equal to the inputs minus the outputs. Jenny's "system view" of the soil was carried into the fertile fields of Midwestern American prairies from the laboratories of Switzerland in the late 1920s. Jenny's rate equations provided the other paradigm or world view that, I recall, brought us to the threshold of systems ecology as it later evolved in the second half of the twentieth century. As if world renown in the specialties of pedology and soil chemistry were not enough for one lifetime, excerpts below remind us that Hans Jenny has also been a perceptive outdoor field ecologist since his early Alpine expeditions with Braun Blanquet in the mid 1920s. Jenny's ecosystem studies in the pygmy forest, a further classic example of a soil-plant system "run down" over hundreds of thousands of years since its origin, continue to occupy some of the vigorous retirement time near his farm in Mendocino County. But each specific, quantitative case study, and each research area conserved (with additional hard work) for further study by future generations, fits into Jenny's coherent world view. It is that view, and its legacies of discovery and of tangible landscape preserves, which we are privileged to share with their originator in this volume.

Download or read book Sustainability of Rice in the Global Food System written by Noreen G. Dowling and published by Int. Rice Res. Inst.. This book was released on 1998 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phytobacteriology written by J. D. Janse and published by CABI. This book was released on 2006 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive manual of phytobacteriology is heavily illustrated with over 200 colour photographs and line illustrations. It begins by outlining the history and science of bacteriology and gives an overview of the diversity and versatility of complex bacteria. It then explains the characterization, identification and naming of complex bacteria, and explores how bacteria can cause disease and how plants react to such disease. The book also discusses the economic importance of bacterial diseases as well as strategies for their control and the reduction of crop losses. It concludes with fifty examples of plant pathogenic bacteria and the diseases that they cause.

Download or read book Principles of Plant Microbe Interactions written by Ben Lugtenberg and published by Springer. This book was released on 2014-12-04 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of microbial plant protection products is growing and their importance will strongly increase due to political and public pressure. World population is growing and the amount of food needed by 2050 will be double of what is produced now whereas the area of agricultural land is decreasing. We must increase crop yield in a sustainable way. Chemical plant growth promoters must be replaced by microbiological products. Also here, the use of microbial products is growing and their importance will strongly increase. A growing area of agricultural land is salinated. Global warming will increase this process. Plants growth is inhibited by salt or even made impossible and farmers tend to disuse the most salinated lands. Microbes have been very successfully used to alleviate salt stress of plants. Chemical pollution of land can make plant growth difficult and crops grown are often polluted and not suitable for consumption. Microbes have been used to degrade these chemical pollutants.

Download or read book Crop Production and Global Environmental Issues written by Khalid Rehman Hakeem and published by Springer. This book was released on 2015-12-08 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meeting the world’s food security challenge will require a multi-national, collaborative effort to integrate the best research from science, engineering and socioeconomics so that technological advances can bring benefits where they are most needed. The present book covers the effect of major environmental problems on crop production and how to cope with these issues for sustainable agriculture and improvements of crops. The world’s population is predicted to hit 9.6 Billion by 2050, up from today’s total of nearly 7.3 Billion, and with it food demand is predicted to increase substantially. The post-war ‘second agricultural revolution’ in developed countries, and the ‘green revolution’ in developing nations in the mid- 1960s converted agricultural practices and elevated crop yields spectacularly, but the outcome is levelling off and will not meet projected demand. Simultaneously, crop production is affected by many other factors, including industrial pollution, overuse of fertilizers and insecticides, heavy metal and radiation stresses etc. It has been noted that many pests are becoming resistant to insecticides. Estimates vary, but around 25% of crops can be lost to pests and diseases. Climate change associated with agriculture is also a global issue. Agriculture is a significant contributor to greenhouse gases and is estimated to account for 10-12% of total greenhouse gas (GHG) emissions. Many of the issues highlighted are global problems and are addressed thoroug hly in this work.

Download or read book The Pear Thrips written by California. State Commission of Horticulture and published by . This book was released on 1905 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plant Breeding Reviews written by J. Janick and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant breeding, the domestication and systematic improvement of crop species, is the basis of past and present agriculture. Our so called primitive progenitors selected practically all our present-day crop plants, and the improvement wrought through millenia of selection has so changed some of them that in many cases their links to the past have been obliterated. There is no doubt that this ranks among the greatest of human achievements. Although plant breeding has been a continuous empirical activity for as long as humans have forsaken the vagaries and thrill of hunting for the security and toil of agriculture, genetic crop improvement is now very much of a twentieth-century discipline. Its scientific underpinnings date to the beginning of this century with the discovery of Gregor Mendel's classic 1865 paper on the inheritance of seven characters in the garden pea. If any science can be traced to single event, the best example is surely found in the conception of modern genetics that appears in this single creative work. The relationship of plant breeding progress to advances in genetics has become closely entwined. Mendel himself was concerned with crop improvement and worked on schemes for apple and pear breeding. Plant breeding also has claims on other scientific and agricultural disci plines-botany, plant pathology, biochemistry, statistics, taxonomy, entomology, and cytology, to name a few-and has also impinged on our social, ethical, economic, and political consciousness.

Download or read book The Ecology of Fungal Entomopathogens written by Helen E. Roy and published by Springer Science & Business Media. This book was released on 2010-02-04 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding of the ecology of fungal entomopathogens has vastly increased since the early 1800’s, but remains challenging. The often complex interactions between pathogen and host are being unravelled through eloquent research and the importance of the often subtle interactions, in determining the success or failure of biological control, cannot be underplayed. The realm of ecology is vast and deciphering insect-fungal pathogen interactions within an ecological context will take us on voyages beyond our imagination. This book brings together the work of renowned scientists to provide a synthesis of recent research on the ecology of fungal entomopathogens exploring host-pathogen dynamics from the context of biological control and beyond. Dr. Helen Roy leads zoological research in the Biological Records Centre at the NERC Centre for Ecology & Hydrology, UK. The focus of her research is insect community interactions with particular emphasis on the effects of environmental change. She has been working on the ecological interactions between fungal entomopathogens and their hosts for 15 years; this continues to be a source of fascination. She has been an associate editor of BioControl since 2006. Dr. Dave Chandler is an insect pathologist at the University of Warwick, UK. He has studied entomopathogenic fungi for just over 20 years. He has particular interests in entomopathogenic fungi as biocontrol agents of horticultural crops, fungal physiology and ecology, and the pathogens of honeybees. Dr. Mark Goettel is an insect pathologist at the Lethbridge Research Centre of Agriculture & Agri-Food Canada, specializing in the development of fungal entomopathogens as microbial control agents of insects. In addition to this research, he has been extensively involved in the review and revision of the regulations for registration of microbial control agents and has addressed regulatory and safety issues at the international level. He is currently President of the Society for Invertebrate Pathology and has been Editor-in-Chief of Biocontrol Science & Technology since 2000. Dr. Judith K. Pell heads the Insect Pathology Group in the Department for Plant and Invertebrate Ecology at Rothamsted Research, UK. She leads research on the ecology of fungal entomopathogens, to elucidate their role in population regulation and community structure and to inform biological control strategies. Specifically: intraguild interactions; the relationships between guild diversity, habitat diversity and ecosystem function; pathogen-induced host behavioural change. Dr. Eric Wajnberg is a population biologist specialising in behavioural ecology, statistical modelling and population genetics. He is also an expert in biological control, with more than 20 years experience of working with insect parasitoids. He has been the Editor in Chief of BioControl since 2006. Dr. Fernando E. Vega is an entomologist with the United States Department of Agriculture, Agricultural Research Service, in Beltsville, Maryland, USA. He conducts research on biological methods to control the coffee berry borer, the most important insect pest of coffee throughout the world. He is co-editor, with Meredith Blackwell, of Insect-Fungal Associations: Ecology and Evolution, published by Oxford University Press in 2005, and serves as an Editorial Board Member for Fungal Ecology.

Download or read book Species written by M.F. Claridge and published by Taylor & Francis US. This book was released on 1997-03-31 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: A major thrust of scientific concern in recent years has been the problem of documenting and conserving biodiversity and the establishment of systems of sustainable development. This volume reviews the practical application of concepts and technologies.

Download or read book Plant Biotechnology Principles and Applications written by Malik Zainul Abdin and published by Springer. This book was released on 2017-03-10 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book traces the roots of plant biotechnology from the basic sciences to current applications in the biological and agricultural sciences, industry, and medicine. Providing intriguing opportunities to manipulate plant genetic and metabolic systems, plant biotechnology has now become an exciting area of research. The book vividly describes the processes and methods used to genetically engineer plants for agricultural, environmental and industrial purposes, while also discussing related bioethical and biosafety issues. It also highlights important factors that are often overlooked by methodologies used to develop plants’ tolerance against biotic and abiotic stresses and in the development of special foods, bio-chemicals, and pharmaceuticals. The topics discussed will be of considerable interest to both graduate and postgraduate students. Further, the book offers an ideal reference guide for teachers and researcher alike, bridging the gap between fundamental and advanced approaches.

Download or read book The Empidoidea Diptera of Fennoscandia and Denmark written by Milan Chvála and published by BRILL. This book was released on 1994 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume treats dance flies of the genus Empis (Diptera, Empididae) of Fennoscandia and NW Europe. Altogether, 64 species in 11 subgenera are recognized. Each species is briefly described and the main differential characters are fully illustrated, with full data on synonymy, type specimens, distribution and biology. Phylogeny and classification are also treated.

Download or read book Words to Rhyme with written by Willard R. Espy and published by Checkmark Books. This book was released on 2001 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: An easy-to-use dictionary of over 80,000 rhyming words.

Download or read book Handbook of Genetics written by Robert C. King and published by Springer. This book was released on 1974-11-01 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this and future volumes of the Handbook of Genetics is to bring together a collection of relatively short, authoritative essays or annotated compilations of data on topics of significance to geneticists. Many of the essays will deal with various aspects of the biology of certain species selected because they are favorite subjects for genetic investigation in nature or the laboratory. Often there will be an encyclopedic amount of information available on such a species, with new papers appearing daily. Most of these will be written for specialists in a jargon that is be wildering to a novice, and sometimes even to a veteran geneticist working with evolutionarily distant organisms. For such readers what is needed is a written introduction to the morphology, life cycle, reproductive be havior, and culture methods for the species in question. What are its par ticular advantages (and disadvantages) for genetic study, and what have we learned from it? Where are the classic papers, the key bibliographies, and how does one get stocks of wild type or mutant strains? The chapters devoted to different species will contain information of this sort. Only a few hundreds of the millions of species available to biologists have been subjected to detailed genetic study. However, those that have make up a very heterogeneous sample of the living world.

Download or read book American Entomologists written by Arnold Mallis and published by . This book was released on 1971 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some 211 lengthy biographies about outstanding, deceased, North American entomologists. Emphasis on the lives of the men, rather than their accomplishments. Entries are discussed under 14 general categories. References. Photographs. Name index.

Download or read book General Household Pest Control Applicator Training Manual written by Philip Koehler and published by . This book was released on 2019-09-30 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Integrated Pest Management written by A. J. Burn and published by . This book was released on 1987 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: FROM THE PREFACE: The idea of Integrated Pest Management (IPM) is not a new one, and since the term was first coined, it has come to achieve a range of different meanings. In its simplest form it is accepted as being a control strategy in which a variety of biological, chemical and cultural control measures are combined to give stable long term pest control. In its recent renaissance, IPM has more often been taken to describe more biologically oriented pest control strategies that have arisen following problems with purely chemical control. It is the purpose of the first six chapters of this book to consider fundamental principles for IPM development, and to outline current research progress and future research needs, in the light of technological developments and agricultural requirements. The final seven chapters of the book deal with the practical aspects of IPM implementation. The range of crop types considered represent the diversity of crop production and storage systems in Western Europe, with different ecological backgrounds, against which IPM might operate, and within which IPM has developed to differing extents.

Download or read book The Moths of the British Isles written by Richard South and published by . This book was released on 1961 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: