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Books > Professional & Technical > Agriculture & farming

Marketing Livestock and Meat (Paperback): William H. Lesser Marketing Livestock and Meat (Paperback)
William H. Lesser
R1,291 Discovery Miles 12 910 Shipped within 7 - 12 working days

This groundbreaking volume presents a comprehensive view of the many concerns of those involved with livestock and meat marketing. During the 1980s, livestock production faced some critical changes. Product and feed prices became less stable, cycles lost their century-old patterns, both competition and trade barriers seemed to rise, and market outlets shrank in number and ownership diversity. At the same time, the United States demography became increasingly older, while new and confusing health concerns about red meat arose rapidly. This practical book introduces the reader to a range of issues of the livestock marketing system and looks ahead to such future issues as biotechnology, human health, and food safety. Considerable interest is given to international trade, an increasingly important sector in the market.Marketing Livestock and Meat is a concise and convenient compendium of diverse information. It provides functionaries in the system with an overall concept of how the market functions as a whole to promote better skills and strategies for marketing of red meats. The author describes specific applications vital to successful operation of the complex and far-reaching marketing system of meat and livestock, including international trade, grades and grading, health matters, demand for meat, price reporting and electronic markets, costs and benefits, and their combination into marketing strategies for producers. To supplement the research, theories, and strategies presented in this important book, there are many charts, graphs, and photographs. All persons connected to the marketing of meat and livestock--undergraduate students in North America, foreign students interested in exporting meat to the U. S., and most segments of the livestock sector, including supply and processing firms and retailers--will benefit from this important book.

Dryland Forests - Management and Social Diversity in Africa and Asia (Hardcover, 1st ed. 2016): Purabi Bose, Han Dijk Dryland Forests - Management and Social Diversity in Africa and Asia (Hardcover, 1st ed. 2016)
Purabi Bose, Han Dijk
R3,106 R2,408 Discovery Miles 24 080 Save R698 (22%) Shipped within 7 - 12 working days

This volume provides new insights and conceptual understandings of the human and gender dimension of vulnerability in relation to the dynamics of tenure reforms in the dryland forests of Asia and Africa. The book analyzes the interaction between biophysical factors such as climate variability (e.g. droughts) with socio-political processes (e.g. new institutions and authority) and gender dimensions at various temporal and spatial scales. The book presents a number of case studies based on empirical research on forest tenure reform and it consequences on forest-dependent people. In particular, it highlights the interaction between legal, policy and institutional reform and the inclusion and/or exclusion of local people from deriving benefits from forest resources in the drylands. The book focuses on the questions how land tenure reform and natural resource governance impacts upon marginal groups (along individual, collective and gender dimensions); how do forest-dependent people prepare for and respond to vulnerability; and what is the effect of forest tenure policy reform on the human rights, gender and citizenship issues in relation to the use and management of forest resources and on conflict in forest zones. These issues are approached from the perspective of marginalized groups (gender and social diversity such as indigenous peoples and herders) in vulnerable dryland forests with a high risk of being exposed to climate variability.

Seed Conditioning, Volume 2 - Technology--Parts A & B (Hardcover): Bill R. Gregg, Gary L. Billups Seed Conditioning, Volume 2 - Technology--Parts A & B (Hardcover)
Bill R. Gregg, Gary L. Billups
R3,548 Discovery Miles 35 480 Shipped within 7 - 12 working days

Seed conditioning removes undesirable material including debris and stray seeds from selected raw harvested seed, so as to create planting seed that delivers high yielding crops. This two-volume set provides a major up-date of previously published work. It describes the essential information needed to understand this process and the machinery involved. It describes the machines available to seed conditioners and explains how they can be installed, operated, adjusted, and maintained to give complete and precise separations for many years. All the machines are described in sufficient detail, sometimes with the help of models to enable the conditioner to get good results. The book also details the operating sequence used to properly prepare seed before going into each machine. Organized in a logical sequence, it catalogs all the entire field of seed conditioning, to help seed managers, specialists, and conditioning operators reduce loss of good seed while improving seed quality and honing the efficiency of their operations.

Plant Genetic Resources and Traditional Knowledge for Food Security (Hardcover, 1st ed. 2015): Romesh Kumar Salgotra, Bharat... Plant Genetic Resources and Traditional Knowledge for Food Security (Hardcover, 1st ed. 2015)
Romesh Kumar Salgotra, Bharat Bhushan Gupta
R3,503 R3,164 Discovery Miles 31 640 Save R339 (10%) Shipped within 7 - 12 working days

With exponentially increasing population across the globe and shrinking resources, the concern of food security is looming large over the world community. To catch up with the fierce pace of growth in all the sectors of development, ensuring uninhibited availability of food resources is a prime agenda. The growing global demand for food, feed, fiber and bio-based renewable materials, such as bio-fuels, is changing the conditions for genetic resources development and bio-resource production worldwide. The crucial role in ensuring food security is played by the agro-based industries and enterprises. Advances in plant genetic resources coupled with traditional knowledge of the local tribes and native practices facilitate achievement of food security.

Basic Guide To Pesticides: Their Characteristics And Hazards - Their Characteristics & Hazards (Hardcover): Rachel Carson... Basic Guide To Pesticides: Their Characteristics And Hazards - Their Characteristics & Hazards (Hardcover)
Rachel Carson Council Inc
R2,381 Discovery Miles 23 810 Shipped within 7 - 12 working days

This work contains physical properties of over 700 pesticides and transformation products and contaminants. It can be used by the layman with minor questions or by the specialist needing in-depth references. Facts have been arranged so that one does not have to read through lengthy material.

Transport Phenomena of Foods and Biological Materials (Hardcover): Vassilis Gekas Transport Phenomena of Foods and Biological Materials (Hardcover)
Vassilis Gekas
R5,664 Discovery Miles 56 640 Shipped within 7 - 12 working days

Transport Phenomena of Foods and Biological Materials provides comprehensive coverage of transport phenomena modeling in foods and other biological materials. The book is unique in its consideration of models ranging from rigorous mathematical to empirical approaches, including phenomenological and semi-empirical models. It examines cell structure and descriptions of other non-traditional models, such as those based on irreversible thermodynamics or those focused on the use of the chemical and electrochemical potential as the driving forces of transport. Other topics discussed include the source term (important for the coupling transport phenomena-reaction or other intentional/unintentional phenomena) and the connections between transport phenomena modeling and design aspects. Some 100 tables provide useful summaries of the characteristics of each model and provide data about the transport properties of an extensive variety of foods. Transport Phenomena of Foods and Biological Materials will benefit a broad audience of chemists, biochemists, biotechnologists, and other scientists in the academic and industrial realm of foods and biological materials.

Heida - A Shepherd at the Edge of the World (Paperback): Steinunn Sigurdardottir Heida - A Shepherd at the Edge of the World (Paperback)
Steinunn Sigurdardottir 1
R346 R223 Discovery Miles 2 230 Save R123 (36%) Shipped within 7 - 12 working days

I'm not on my own because I've been sitting crying into a handkerchief or apron over a lack of interested men. I've been made every offer imaginable over the years. Men offer themselves, their sons...drunk fathers sometimes call me up and say things like: "Do you need a farmhand?" "I can lift the hay bales" "I can repair your tractors"... Heida is a solitary farmer with a flock of 500 sheep in a remorseless area bordering Iceland's highlands. It's known as the End of the World. One of her nearest neighbours is Iceland's most notorious volcano, Katla, which has periodically driven away the inhabitants of Ljotarstadir ever since people first started farming there in the twelfth century. This portrait of Heida written with wit and humour by one of Iceland's most acclaimed novelists, Steinunn Sigurdardottir, tells a heroic tale of a charismatic young woman, who at 23 walked away from a career as a model in New York to take over the family farm when her father died. I want to tell women they can do anything, and to show that sheep farming isn't just a man's game. I guess I've always been a feminist. When I was growing up, there was a female president, and I used to wear the same clothes and play with the same toys as the boys. It was just normal to me. Divided into four seasons, HEIDA tells the story of a remarkable year, interwoven with vivid stories of her animals and farm work and paints a unforgettable portrait of a remote life close to nature. We humans are mortal; the land outlives us, new people come, new sheep, new birds and so on but the land with its rivers and lakes and resources, remains.

The Red Sea Ecosystem and Fisheries (Hardcover, 1st ed. 2016): Dawit Tesfamichael, Daniel Pauly The Red Sea Ecosystem and Fisheries (Hardcover, 1st ed. 2016)
Dawit Tesfamichael, Daniel Pauly
R3,089 R2,802 Discovery Miles 28 020 Save R287 (9%) Shipped within 7 - 12 working days

This book is the first comprehensive coverage of Red Sea fisheries to inform researchers and decision makers. The Red Sea is a geologically young sea, but also an area with the oldest record of human sea food exploitation. Examining the fisheries of the Red Sea has become extremely important to understand the ecosystem and the direct human impact of fishing on Red Sea ecosystems. This volume gives extensive data on different fisheries sectors identified and described for each country bordering the Red Sea. Furthermore, its catch and specific composition is also described over the period 1950 to 2010. Combined with the ecosystem model this useful information can uniquely help managing fisheries and ecosystems of the Red Sea.

Manual of Agricultural Nematology (Hardcover): William R. Nickle Manual of Agricultural Nematology (Hardcover)
William R. Nickle; Edited by William R. Nickle
R8,536 Discovery Miles 85 360 Shipped within 7 - 12 working days

Nickle (Beltsille Agricultural Research Center of the USDA) has engaged 29 internationally known experts to replace the classic work of I.N. Filipjev (1934) and its translated revision (Schuurmans Stekhoven, Jr., 1941) with a modern work taking note of 188 additional genera, and 4,650 more species.

Natural Resource Management: Ecological Perspectives (Hardcover, 1st ed. 2019): Rajinder Peshin, Ashok K. Dhawan Natural Resource Management: Ecological Perspectives (Hardcover, 1st ed. 2019)
Rajinder Peshin, Ashok K. Dhawan
R3,103 R2,378 Discovery Miles 23 780 Save R725 (23%) Shipped within 7 - 12 working days

This book is an outcome of the keynote/lead papers presented by the experts from different disciplines in the Indian Ecological Society International Conference 2016 on "Natural Resource Management: Ecological Perspectives", organized at the Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, India. The book captures the essence of natural resource management from the intra and interdisciplinary perspectives of agricultural sciences (entomology, plant pathology, plant breeding and genetics, agronomy and soil sciences), social sciences (resource economics, agricultural extension education), medical sciences, and environmental sciences to stimulate discussion on the ecological perspectives of natural resource management. Wide-ranging topics on land and water resources, biodiversity, integrated farming system, role of microbes in agriculture, climate change and its impact on human health and crop pests, exploiting chemical ecology for pest management, human disease-causing pesticides, beneficial insects like lac insects, integrated pest management, resistance management in insect pests and Bt cotton , and diffusion and adoption of ecologically sustainable technologies at individual and organizational level are covered in the book.. The book will serve the professionals, researchers, academia, government, industry and students.

Sustainable Agricultural Systems (Hardcover): Edwards Sustainable Agricultural Systems (Hardcover)
Edwards
R3,830 Discovery Miles 38 300 Shipped within 7 - 12 working days

A unique look at how the adoption of sustainable farming methods is being pursued throughout the world. This comprehensive book provides clear insight into research and education needs and the many points of view that come to bear on the issue of sustainability. Essential for agricultural leaders in research, education, conservation, policy making, and anyone else interested in creating an economically and environmentally sustainable agriculture worldwide.

Agricultural Engineering, Volume 4: Power, processing and systems - Proceedings of the Eleventh International Congress on... Agricultural Engineering, Volume 4: Power, processing and systems - Proceedings of the Eleventh International Congress on Agricultural Engineering, Dublin, 4-8 September 1989 (Hardcover)
Vincent A. Dodd, Patrick M. Grace
R5,207 Discovery Miles 52 070 Shipped within 7 - 12 working days

This set of proceedings volumes provides a broad coverage of basic and applied research projects dealing with the application of engineering principles to both food production and processing. The set consists of the following four volumes: Land and water use, Agricultural buildings, Agricultural mechanisation and Power, processing and systems. Includes about 450 papers from over 50 countries worldwide, drawn from the Eleventh International Congress on Agricultural Engineering, Dublin, 4-8 September 1989.

Management-Intensive Grazing - The Grassroots of Grass Farming (Paperback): Jim Gerrish Management-Intensive Grazing - The Grassroots of Grass Farming (Paperback)
Jim Gerrish
R746 R571 Discovery Miles 5 710 Save R175 (23%) Shipped within 7 - 11 working days
Agriculture Course - The Birth of the Biodynamic Method (Paperback, Revised ed.): Rudolf Steiner Agriculture Course - The Birth of the Biodynamic Method (Paperback, Revised ed.)
Rudolf Steiner; Translated by G. Adams 1
R304 R242 Discovery Miles 2 420 Save R62 (20%) Shipped within 7 - 12 working days

8 lectures, Koberwitz, June 7-20, 1924 (CW 327) The audio book, complete and unabridged (10 CD set), is read by respected actor and speech teacher Peter Bridgmont, author of Liberation of the Actor. When Rudolf Steiner gave these lectures eighty years ago, industrial farming was on the rise and organic methods were being replaced in the name of science, efficiency, and technology. With the widespread alarm over food quality in recent years, and with the growth of the organic movement and its mainstream acceptance, perceptions are changing. The qualitative aspect of food is on the agenda again, and in this context Steiner's only course of lectures on agriculture is critical to the current debate. With these talks, Steiner created and launched "biodynamic" farming--a form of agriculture that has come to be regarded as the best organically produced food. However, the agriculture Steiner speaks of here is much more than organic--it involves working with the cosmos, with the earth, and with spiritual beings. To facilitate this, Steiner prescribes specific "preparations" for the soil, as well as other distinct methods born from his profound understanding of the material and spiritual worlds. He presents a comprehensive picture of the complex dynamic relationships at work in nature and gives basic indications of the practical measures needed to bring them into full play. These lectures are reprinted here in the "classic" translation made by Rudolf Steiner's English interpreter, George Adams. This edition also features a preface by Steiner's colleague the medical doctor Ehrenfried Pfeiffer, as well as eight color plates. This is the course that began the biodynamic movement. Rudolf Steiner's Agriculture Course is the essential work for anyone wanting to understand and use Steiner's methods of food production. This book is a translation from German of Geisteswissenschaftliche Grundlagen zum Gedeihen der Landwirtschaft. Landwirtschaftlicher Kursus (GA 327).

Paddlefish Aquaculture (Hardcover): Steven D Mims, William L Shelton Paddlefish Aquaculture (Hardcover)
Steven D Mims, William L Shelton
R3,739 R2,828 Discovery Miles 28 280 Save R911 (24%) Shipped within 7 - 13 working days

Paddlefish have become of increasing interest to the aquaculture community in recent years, particularly as a potential new source of seafood and caviar. Native to North America, paddlefish show great promise both domestically and internationally as a commercially viable farmed species. Paddlefish Aquaculture examines all aspects of the biology and culture of these fish, exploring their physiology, production, end products and the economics underlying a successful paddlefish operation. Chapters specifically cover paddlefish biology, propagation and early culture techniques, production for meat and caviar, international culture and history, paddlefish food products, bioaccumulants of contaminants in paddlefish, parasites and diseases, and the economics of paddlefish aquaculture. Paddlefish Aquaculture is a timely practical reference for researchers and producers interested in paddlefish.

Diseases of Trees and Shrubs (Hardcover, 2nd edition): Wayne A. Sinclair, Howard H. Lyon Diseases of Trees and Shrubs (Hardcover, 2nd edition)
Wayne A. Sinclair, Howard H. Lyon
R1,845 R1,533 Discovery Miles 15 330 Save R312 (17%) Shipped within 7 - 12 working days

Praise for the First Edition: Association of American Publishers Professional and Scholarly Division Award Winner (Life Sciences)"One of the ten best horticultural books of the century." The Washington Post"Diseases of Trees and Shrubs is by far the best book currently available for the horticulturist, arborist, or forester who wishes to identify disorders of forest and shade trees and woody ornamentals." The Public Garden"It may be used by anyone with knowledge of general biology as well as by someone with specialized plant knowledge for diagnosing plant disease problems. Highly recommended." Library Journal"This book is a remarkable contribution to the literature on tree pathology, providing a valuable source of reference on tree disease for all with an interest in the subject. It must surely be almost obligatory reading for the specialist tree pathologist, and will prove of great value to all tree care professionals. . . . It will fascinate any tree lovers who wish to find out more about the diseases and disorders that may afflict trees." Arboricultural Journal"It is well written and it is illustrated with photographs of such high quality that in this respect it could be described as a 'coffee table' book of forest pathology." ForestryFirst published in 1987, Diseases of Trees and Shrubs has become a standard reference for plant health specialists, plant diagnosticians, horticulturists, arborists, foresters, and their students. Now thoroughly revised, fully updated, and illustrated with more than 2200 digitally optimized color images in 261 full-color plates and more than 350 black-and-white photographs and drawings, the second edition is an unrivalled survey of the diseases of forest and shade trees and woody ornamental plants in the United States and Canada. The book is both an authoritative reference book and a powerful diagnostic tool. Organized according to type of disease-inducing agent, the second edition is also designed to be helpful in classroom and field instruction. Symptoms, signs, and cycles of hundreds of diseases are described and microscopic features of many pathogens are depicted in photos and line drawings. A searchable CD-ROM included with the book contains bibliographic entries for more than 4500 works that readers can consult for additional information or images. This remarkable scholarly work praised as one of the best horticultural books of the twentieth century lays claim to the same accolade for the twenty-first century."

Coffee - Growing, Processing, Sustainable Production (Paperback, 2nd, Revised Edition): Jean Nicolas Wintgens Coffee - Growing, Processing, Sustainable Production (Paperback, 2nd, Revised Edition)
Jean Nicolas Wintgens
R2,769 R1,965 Discovery Miles 19 650 Save R804 (29%) Shipped within 7 - 13 working days

An outstanding and currently the only comprehensive handbook for the coffee-professional. 40 authors from the leading coffee-growing countries present the most recent technologies applied to coffee husbandry. The book features 900 carefully selected illustrations, 300 of these in full color, which substantiate the written text. The handbook provides basic guidelines and recommendations which are applicable everywhere rather than referring to any specific country. Added to this, the reader will find numerous data tables and an overview of relevant information sources.

Building Professional's Greywater Guide - Installation Of Greywater Systems In New Construction And Remodelling... Building Professional's Greywater Guide - Installation Of Greywater Systems In New Construction And Remodelling (Paperback)
Art Ludwig
R279 R225 Discovery Miles 2 250 Save R54 (19%) Shipped within 7 - 11 working days
Shark Research - Emerging Technologies and Applications for the Field and Laboratory (Hardcover): Jeffery C Carrier, Michael R... Shark Research - Emerging Technologies and Applications for the Field and Laboratory (Hardcover)
Jeffery C Carrier, Michael R Heithaus, Colin A Simpfendorfer
R1,683 Discovery Miles 16 830 Shipped within 7 - 12 working days

Key features: Serves as the first single-source reference with in-depth coverage of techniques appropriate for the laboratory and field study of sharks, skates, and rays Contains chapters on a broad range of methods such as Imaging Technologies, Satellite Tracking, Stationary Underwater Video, and Population Genetic Approaches and Genomics among others Presents technologies that can be used to study other aquatic fish and marine mammals and reptiles Includes chapter authors who were pioneers in developing some of the technologies discussed in the book Concludes with a unique section on Citizen Science and its Application to Studies of Shark Biology Over the last decade, the study of shark biology has benefited from the development, refinement, and rapid expansion of novel techniques and advances in technology. These have given new insight into the fields of shark genetics, feeding, foraging, bioenergetics, imaging, age and growth, movement, migration, habitat preference, and habitat use. This pioneering book, written by experts in shark biology, examines technologies such as autonomous vehicle tracking, underwater video approaches, molecular genetics techniques, and accelerometry, among many others. Each detailed chapter offers new insights and promises for future studies of elasmobranch biology, provides an overview of appropriate uses of each technique, and can be readily extended to other aquatic fish and marine mammals and reptiles.

Fruit and Vegetables - Harvesting, Handling and Storage 2 Volume Set (Hardcover, 3rd Edition): Anthony Keith Thompson Fruit and Vegetables - Harvesting, Handling and Storage 2 Volume Set (Hardcover, 3rd Edition)
Anthony Keith Thompson
R7,511 R5,243 Discovery Miles 52 430 Save R2,268 (30%) Shipped within 7 - 13 working days

Completely revised, updated and enlarged, now encompassing two volumes, this third edition of Fruit and Vegetables reviews and evaluates, in comprehensive detail, postharvest aspects of a very wide international range of fresh fruit and vegetables as it applies to their physiology, quality, technology, harvest maturity determination, harvesting methods, packaging, postharvest treatments, controlled atmosphere storage, ripening and transportation. The new edition of this definitive work, which contains many full colour photographs, and details of species not covered in the previous editions, provides key practical and commercially-oriented information of great use in helping to ensure that fresh fruit and vegetables reach the retailer in optimum condition, with the minimum of deterioration and spoilage. With the constantly increasing experimental work throughout the world the book incorporates salient advances in the context of current work, as well as that dating back over a century, to give options to the reader to choose what is most relevant to their situation and needs. This is important because recommendations in the literature are often conflicting; part of the evaluation of the published results and reviews is to guide the reader to make suitable choices through discussion of the reasons for diverse recommendations. Also included is much more on the nutritional values of fruit and vegetables, and how these may vary and change postharvest. There is also additional information on the origin, domestication and taxonomy of fruit and vegetables, putting recommendations in context. Fruits and Vegetables 3e is essential reading for fruit and vegetable technologists, food scientists and food technologists, agricultural scientists, commercial growers, shippers, packhouse operatives and personnel within packaging companies. Researchers and upper level students in food science, food technology, plant and agricultural sciences will find a great deal of use within this popular book. All libraries in research establishments and universities where these subjects are studied and taught should have copies readily available for users.

Centrarchid Fishes - Diversity, Biology and Conservation (Hardcover): Steven Cooke, David P. Philipp Centrarchid Fishes - Diversity, Biology and Conservation (Hardcover)
Steven Cooke, David P. Philipp
R4,529 R3,172 Discovery Miles 31 720 Save R1,357 (30%) Shipped within 7 - 13 working days

Centrarchid fishes, also known as freshwater sunfishes, include such prominent species as the Largemouth Bass, Smallmouth Bass and Bluegill. They are endemic to Eastern North America where they form part of a multi-million dollar sports fishing industry, but they have also been widely introduced around the globe by recreational anglers, in aquaculture programs and by government fisheries agencies. Centrarchid Fishes provides comprehensive coverage of all major aspects of this ecologically and commercially important group of fishes. Coverage includes diversity, ecomorphology, phylogeny and genetics, hybridization, reproduction, early life history and recruitment, feeding and growth, ecology, migrations, bioenergetics, physiology, diseases, aquaculture, fisheries management and conservation. Chapters have been written by well-known and respected scientists and the whole has been drawn together by Professors Cooke and Philipp, themselves extremely well respected in the area of fisheries management and conservation. Centrarchid Fishes is an essential purchase for all fish biologists, ecologists, fisheries managers and fish farm personnel who work with centrarchid species across the globe.

Wheat Diseases and Their Management (Hardcover, 2014 ed.): Yeshwant Ramchandra Mehta Wheat Diseases and Their Management (Hardcover, 2014 ed.)
Yeshwant Ramchandra Mehta
R3,617 R2,867 Discovery Miles 28 670 Save R750 (21%) Shipped within 7 - 12 working days

Wheat Diseases and Their Management addresses biotic and abiotic constrains to wheat production. Besides detailed illustrations and descriptions of the most important diseases of wheat in the world, it offers an updated view on the reemergence of some old diseases and the occurrence of new races of the pathogen. It deals with the sustainability of wheat production through precision agriculture and focuses on the importance of conservation tillage. The book also deals with pillars of integrated disease management which would be eco-friendly and reduce severity of diseases and yield losses, with acquired Latin-American experiences of more than 40 years.

Wastewater Management Through Aquaculture (Hardcover, 1st ed. 2018): B.B. Jana, R. N. Mandal, P. Jayasankar Wastewater Management Through Aquaculture (Hardcover, 1st ed. 2018)
B.B. Jana, R. N. Mandal, P. Jayasankar
R2,925 R2,608 Discovery Miles 26 080 Save R317 (11%) Shipped within 7 - 12 working days

This volume provides state-of-the-art information on soil-water interactions in wastewater systems, characterization of wastewater, modes of treatment, safety of wastewater use, water conservation technologies involved in recycling of sewage in fish culture, biogeochemical cycling bacteria and nutrient dynamics, ecosystem resilient driven wastewater reclamation, bioremediation, aquaponics, ecological integrity, culture practices of fish farming, microbial food web phenomena, fish diseases, environmental economics of wastewater, environmental risk assessment, environmental law and regulations. Given its breadth of coverage, the book will be useful to researchers, teachers, students, administrators, planners, farmers and entrepreneurs interested in the profitable use of wastewater in the wastes-into-wealth framework of for the benefit of humanity, and in achieving the targets for sanitation and safe wastewater reuse by 2030, specified in the United Nations' Sustainable Development Goals. Concerns are growing about the quality and quantity of fresh water, as severe crises are expected in the near future. Climate change has further worsened the strain on inland water resources, with its major impacts on ecosystems and human life. It is most urgent to protect and conserve inland water resources to maintain vital ecosystem functions. Despite the immense nutrient potentials of wastewater in terms of phosphorus, nitrogen and potassium and increasingly high rates of urbanization-based wastewater generation, wastewater has traditionally been overlooked as a resource. This produces a threefold loss - environmental degradation, monetary losses from fertilizers, and water. As a result, municipal wastewater offers a win-win strategy for water conservation and environmental protection, while also turning waste into wealth in the form of fish biomass and allied cash crops. Wastewater-fed aquaculture refers to a unique, integrated biosystem in which the wastes generated by the first system are used by the next subsystem. In wastewater-fed aquaculture biosystems, the organic wastes are recycled into fish biomass mediated through a complex microbial/autotrophic/heterotrophic food web mechanism.

The Practical Guide to Buying and Running a Smallholding in Wales (Paperback): Liz Shankland The Practical Guide to Buying and Running a Smallholding in Wales (Paperback)
Liz Shankland
R259 Discovery Miles 2 590 Shipped within 7 - 12 working days

These days, more and more citizens dream of escaping the rat race and moving to pastoral provinces--such as can be found in the Welsh countryside. This accessible and captivating volume offers practical, straightforward advice to those actively pursuing that dream, citing the author's firsthand experience in buying and selling a smallholding in Wales. A pragmatic guide for the urban expatriate, or for anyone with an interest in the pitfalls and positives of packing it all up and downsizing for a life in the country, this book is a helpful compendium that includes a glossary of Welsh place names and their meanings, as well as an essential list of Welsh words and phrases.

Integrating Biological Control into Conservation Practice (Hardcover): Daniel Simberloff, Mark Hoddle, Kevin M Heinz, David L.... Integrating Biological Control into Conservation Practice (Hardcover)
Daniel Simberloff, Mark Hoddle, Kevin M Heinz, David L. Wagner, Bernd Blossey, …
R1,919 R1,364 Discovery Miles 13 640 Save R555 (29%) Shipped within 7 - 13 working days

Invasive species have a critical and growing effect upon natural areas. They can modify, degrade, or destroy wildland ecosystem structure and function, and reduce native biodiversity. Landscape-level solutions are needed to address these problems. Conservation biologists seek to limit such damage and restore ecosystems using a variety of approaches. One such approach is biological control: the deliberate importation and establishment of specialized natural enemies, which can address invasive species problems and which should be considered as a possible component of restoration. Biological control can be an effective tool against many invasive insects and plants but it has rarely been successfully employed against other groups. Safety is of paramount concern and requires that the natural enemies used be specialized and that targeted pests be drivers of ecological degradation. While modern approaches allow species to be selected with a high level of security, some risks do remain. However, as in all species introductions, these should be viewed in the context of the risk of failing to reduce the impact of the invasive species. This unique book identifies the balance among these factors to show how biological control can be integrated into ecosystem restoration as practiced by conservation biologists. Jointly developed by conservation biologists and biological control scientists, it contains chapters on matching tools to management goals; tools in action; measuring and evaluating ecological outcomes of biological control introductions; managing conflict over biological control; and includes case studies as well as an ethical framework for integrating biological control and conservation practice. Integrating Biological Control into Conservation Practice is suitable for graduate courses in invasive species management and biological control, as well as for research scientists in government and non-profit conservation organizations.

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