Agricultural biostimulants are a group of substances or microorganisms, based on natural resources, that are applied to plants or soils to improve nutrient uptake and plant growth, and provide better tolerance to various stresses. Their function is to stimulate the natural processes of plants, or to enrich the soil microbiome to improve plant growth, nutrition, abiotic and/or biotic stress tolerance, yield and quality of crop plants. Interest in plant biostimulants has been on the rise over the past 10 years, driven by the growing interest of researchers and farmers in environmentally-friendly tools for improved crop performance. Focusing on recent progress on biostimulants and their role in crop production and agricultural sustainability, this book includes: 31 chapters on a wide range of biostimulants and their role in plant growth stimulation and stress tolerance. Mechanism of actions of diverse groups of biostimulants, such as trace elements, plant and seaweed extracts, humic substances, polyamines, osmolytes, vitamins, nanoparticles and microorganisms. New promising biostimulants with novel modes of action. Improved crop production technologies are urgently needed to meet the growing demand for food for the ever-increasing global population by addressing the impacts of changing climate on agriculture. This book is of interest to researchers in agriculture, agronomy, crop and plant science, soil science and environmental science.

Ultimate success in exploiting the genetic capabilities of plants to grow in nutrient-stressed environments of the semi-arid tropics (SAT) requires a holistic view of food systems to ensure that genetic selections for improved yields on nutrient-poor soils will actually be adopted by farmers. This book sets out to address the important issue of how physiological mechanisms of nutrient uptake can best be combined with genetic options to improve the adaptation of crops to low-nutrient availability, thereby enhancing productivity of nutrient poor soils in the semi-arid tropics. The book examines (i) the sustainability of breeding for low-nutrient environments from the viewpoint of three interrelated disciplines; physiology, breeding, and socio-economics, (ii) candidate mechanisms and physiological traits to enhance uptake and utilization efficiencies, (iii) genetic approaches for manipulation of crop plants to enhance root exudation and access nutrients in the rhizosphere, and (iv) field practices and farmers' preferences for crop varieties grown in low-nutrient environments. Finally, the role of modelling in improving nutrient efficiency in cropping systems, recommendations for future research needs and strategies were highlighted. Attended by 50 international participants, this book is the outcome of the workshop held at ICRISAT-India during 27-30 September 1999 to mark the culmination of the Government of Japan/ICRISAT Project.

Agroforestry is a land use system that allows for the concurrent production of trees and agricultural crops and/or animals from the same piece of land. It has a rich history of development and has been practised in some parts of the world for more than 6,000 years. In 1997, CABI published the seminal book on this subject, Temperate Agroforestry Systems, which was a break from the norm as almost all agroforestry texts up to that date were only relevant to tropical areas. The book explored the development of temperate agroforestry and agroforestry systems, concentrating on those areas within temperate zones where the greatest advances, adoptions and modifications had taken place up to that time: North and South America, China, Australia, New Zealand and Europe. This second fully-updated and expanded edition includes additional chapters on India and Chile and, as a result of ongoing advances in the field, separate chapters on the US, Canada, the UK and continental Europe. Today's challenges of climate change, population growth and food security, in concert with the ongoing global requirement for the energy and water needed for a resilient agricultural paradigm, can be met through the wide-scale adoption of agroforestry practices, in both tropical regions and temperate zones. The 2nd edition ofTemperate Agroforestry Systems brings together many examples of temperate agroforestry and will make valuable reading for all those working in this area as researchers, practitioners and policy makers. The book is also of importance to students and teachers of agriculture, ecology, environmental studies and forestry in temperate regions.

Explores the Sustainable Development of Agriculture in Technology Precision agriculture technology, when properly integrated into the crop production process, can greatly improve overall production and sustainability. Precision Agriculture Technology for Crop Farming focuses on the technology of site-specific crop management; detailing applications for sensing, data handling, modeling, and control. Written by experts who have contributed significantly to the development of precision agriculture technology, this book reviews its history-establishing background on the various processes and applications-describes the current status, and offers insight into the future technology of precision agriculture. Introducing processes and applications based on a global scale, the book reveals how precision agriculture can be used in large-scale agriculture, community agriculture, and diversified farming. It includes site-specific information from a variety of information sources for planning, planting, growing, and harvesting agricultural crops. It also presents a new concept based on the control system theory that can be used to formulate systematic methods for more effective precision crop production. In addition, this author: Describes yield monitors and guidance systems, GPS-based soil sampling, real-time crop and soil sensors, and remote sensing Evaluates a Japanese model of community-based precision agriculture aimed at high profitability and reliability under regional and environmental constraints Highlights autonomous vehicles, field robots, and other intelligent machinery, emerging developments, and future technology in the field of production agriculture Precision Agriculture Technology for Crop Farming provides an overview of precision agriculture technology development, discusses current and future considerations, and aims to facilitate the successful integration of precision agriculture technology.

This book provides unparalleled integration of fundamentals and most advanced management to make this strawberry crop highly remunerative besides enhancing per capita availability of fruit even in the non-traditional regions of the world.

This full-color, user-friendly field guide covers the basics involved in the collection, cleaning, and storage of tree, shrub, and vine seeds. Learn from an expert how to overcome pests when storing seeds, and handle environmental factors that may threaten the integrity of your seeds. An introduction to identifying different varieties of seeds will make collecting easy for beginner and experienced collectors alike. Over 160 close-up color photographs of seeds gathered from trees, shrubs, and vines are included in this encyclopedia-style guide. Each entry identifies the seed's family, common name, species, genera, and origin, and includes collection methods, a description of the number and color of seeds, useful hints for collection, and notes on growing the source plant. Gardeners around the world will appreciate this useful field guide when harvesting nature's bounty and preserving its genetic material for years and gardens to come.

Many of our current agricultural crops are natural or agricultural hybrids (between two or more species), or polyploids (containing more than one genome or set of chromosomes). These include potato, oats, cotton, oilseed rape, wheat, strawberries, kiwifruit, banana, seedless watermelon, triticale and many others. Polyploidy and hybridization can also be used for crop improvement: for example, to introgress disease resistance from wild species into crops, to produce seedless fruits for human consumption, or even to create entirely new crop types. Some crop genera have hundreds of years of interspecific hybridization and ploidy manipulation behind them, while in other genera use of these evolutionary processes for crop improvement is still at the theoretical stage. This book brings together stories and examples by expert researchers and breeders working in diverse crop genera, and details how polyploidy and hybridization processes have shaped our current crops, how these processes have been utilized for crop improvement in the past, and how polyploidy and interspecific hybridization can be used for crop improvement in the future.

Gene Banks and the World's Food contributes to the crucial debate on how best to preserve some of society's most valuable raw material. The authors also provide an up-to-date report on the status and locations of gene banks, which includes the latest available information on germplasm holdings by crop. They (hen discuss how these holdings are being used to develop better crop varieties for the benefit of people around the world.

Originally published in 1987.

The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These paperback editions preserve the original texts of these important books while presenting them in durable paperback editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

From The New York Times best-selling author of The Essential Scratch & Sniff Guide to Becoming a Wine Expert, everything you need to know about America's favorite recreational plant Who better to guide you through the distinctive scents of cannabis than Richard Betts, author of best-selling books, The Essential Scratch & Sniff Guide to Becoming a Wine Expert and The Essential Scratch & Sniff Guide to Becoming a Whiskey Know-It-All ? In his newest novelty book, Betts demystifies the differences between cannabis and hemp, indica and sativa, and describes how each strain will make you feel and more, aided by scents to truly allow readers to understand the distinction between Train Wreck and Sour Diesel. With a short history lesson on where Mary Jane came from and how it became humanity's beloved pastime, plus a guide to the most popular strains, this handbook is a fact-filled and fun guide to all things cannabis. And if you don't live in a state that has legalized marijuana, this book is the closest thing you'll have to toking up!

This full-color introduction to agronomy and crop science offers both traditional agricultural students and students with nonagricultural backgrounds a timely look at the principles of crop science, sustainable agriculture, and a host of related societal issues. A must-read text for anyone interested in what are arguably the most profoundly important issues of our time, INTRODUCTION TO AGRONOMY, second edition addresses the basics of safe and sustainable food and fiber production as well as big picture topics such as energy, ecology, and environmental quality. Throughout the text, readers will find information and illustrations on the latest agricultural methods, regulations, and practices--and how each is impacting our society and each individual within it.

This book presents a simple, straightforward discussion of the principles and processes involved in the production of grain yield by agronomic crops, and how these processes underlie and influence management decisions. The focus is on grain crops, principally maize and soybean, although the general principles apply equally well to cereals, grain legumes and oil crops. Management decisions define all cropping systems - what (crop species, variety), where (climate), when (planting date), and how (row spacing and population density) are the fundamental choices. Knowledge of the fundamental processes responsible for plant growth and the accumulation of yield simplifies the decision-making process and leads to improved management decisions, higher grain yields, and cropping systems that are efficient, resilient and sustainable. The contents include: * Basic plant growth processes e.g. photosynthesis, respiration, evapotranspiration * Growth and production of yield * Crop management - seed quality, variety selection, plant date, row spacing * Crop production in the future - climate change, GMOs, precision data and new crops Intended for researchers in crop science, agronomy and plant science, and crop production practitioners, this book will enable readers to make better, more informed management decisions; decisions that will help maintain a well-fed world in the future.

Spices, scents and silks were at the centre of world trade for millennia. Exotic luxuries such as cinnamon, ginger, pepper, saffron, clove, frankincense and myrrh. Through their international trade, humans were pushed to explore and then travel to the far corners of the earth. Almost from their inception, the earliest great civilizations - Egypt, Sumer and Harappa - became addicted to the luxury products of far-off lands and established long-reaching trade networks. Over time, great powers fought mightily for the kingdoms where silk, spices and scents were produced. The New World was accidentally discovered by Columbus in his quest for spices. What made trade in these products so remarkable was that the plants producing them grew in very restricted areas of the world, distant from the wealthy civilizations of northern Africa, Greece and Europe. These luxuries could be carried from mysterious locations on the backs of camels or in the holds of ships for months on end, and arrived at their final destination in nearly perfect condition. Once the western world discovered the intoxicating properties of these products, their procurement became a dominant force in the world economy. Nothing else compared with their possible profit returns. In this book, eminent horticulturist and author James Hancock examines the origins and early domestication and culture of spices, scents and silks and the central role they played in the lives of the ancients. The book also traces the development of the great international trade networks and explores how struggles for trade dominance and demand for such luxuries shaped the world. Recommended for academics, students and general readers with an interest in crop and agricultural development, world trade, economic botany, history of food, and global economics and public policy, Spices, Scents and Silk offers a fascinating and insightful history.

As global pressure on water resources intensifies, it is essential that scientists understand the role that water plays in the development of crops and how such knowledge can be applied to improve water productivity. Linking crop physiology, agronomy and irrigation practices, this book focuses on eleven key fruit crops upon which millions of people in the tropics and subtropics depend for their livelihoods (avocado, cashew, Citrus spp., date palm, lychee, macadamia, mango, olive, papaya, passion fruit and pineapple). Each chapter reviews international irrigation research on an individual fruit crop, identifying opportunities for improving the effectiveness of water allocation and encouraging readers to link scientific knowledge with practical applications. Clearly written and well illustrated, this is an ideal resource for engineers, agronomists and researchers concerned with how the productivity of irrigated agriculture can be improved, in the context of climate change, and the need for growers to demonstrate good irrigation practices.

This second edition of Natural Enemies will give students, professionals, and anyone wishing to learn the basics of biological control a fully updated and thorough introduction. The book discusses the huge diversity of organisms used in the control of pests, weeds and plant pathogens, and compares the many different strategies referred to as 'biological control': the introduction of exotic natural enemies, application of predators, parasitoids, and microorganisms as biopesticides, and manipulation of the environment to enhance natural enemy populations. The authors present the ecological concepts which form the bases of biological control and discuss recent changes to make biological control safe for the environment. Case studies are included throughout, providing in-depth examples of the use of different organisms and strategies in a variety of ecosystems. A new chapter covers the current challenges; the impact of climate change, the problem of invasive species, and how biological control can aid sustainability.

Model studies focus experimental investigations to improve our understanding and performance of systems. Concentrating on crop modeling, this book provides an introduction to the concepts of crop development, growth, and yield, with step-by-step outlines to each topic, suggested exercises and simple equations. A valuable text for students and researchers of crop development alike, this book is written in five parts that allow the reader to develop a solid foundation and coverage of production models including water- and nitrogen-limited systems.

This book provides discussion on the importance of hydroponics with particular focus on the nutrient film technique for the production of premium, fresh vegetables in a highly economically feasible method. It highlights this culture of growing as one of the most efficient agricultural practices for a sustainable market and also addresses the numerous challenges faced in the production of crops grown in soil. Nutrient Film Technique Hydroponics describes detailed instructions on the set up of an efficient system, including applications for lower budgets, new business ventures, and gives a detailed outline for the construction of an ideal hydroponic system. It also reveals the secrets to turning a hydroponic system into a profitable business by providing the necessary templates for tracking a successful endeavor. This book also contains references for further reading and a comprehensive index.

Grasslands, in particular managed pastures and rangelands, are widespread, covering approximately 40% (52 million km2) of the Earth's land surface. They are dominated by members of the Poaceae - the fourth largest plant family with over 7,500 species, and also the most widespread. Grasslands constitute a major biome on all continents except Antarctica and also represent the most important food crop on Earth with corn, wheat, maize, rice and millet accounting for the majority of our agricultural output.
Grasses and Grassland Ecology provides an ecologically orientated introduction to this influential group of plants, summarizing the most recent scientific research in ecology and agriculture in the context of the older, classic literature. Ten chapters cover the morphology, anatomy, physiology and systematics of grasses, their population, community and ecosystem ecology, their global distribution, and the effects of disturbance and grassland management.
This comprehensive and accessible textbook is suitable for graduate level students as well as professional researchers in the fields of plant ecology, rangeland science, crop science, and agriculture.

This book provides a comprehensive overview of the complex story of human-plant interactions, from the hunter-gatherers of the Palaeolithic Era, through to the 21st century and the molecular genetic manipulation of crops. It links the latest advances in molecular genetics with the science and history of plant domestication, the evolution of plant breeding, and the implications of this new knowledge for both the agriculture of today and the future.
Modern societies still rely on plants for most of their food needs, not to mention clothing, shelter, medicines and tools. This special relationship has tied together people and their plants in mutual dependence for over 50,000 years. Yet despite these millennia of intimate contact, people have only gone on to domesticate and cultivate a few dozen of the tens of thousands of edible plants available. Thanks to the latest genomic studies, we can now begin to explain how, when, and where some of the most important crops came to be domesticated, and the crucial role of plant genetics and climatic change in these processes. Indeed, it was their unique genetic organisations that ultimately determined which plants eventually became crops, rather than any conscious decisions by their human cultivators.
The book is primarily aimed at geneticists, molecular biologists, biotechnologists, and plant breeders who require a detailed and up-to-date account of modern crop genetics and genomic research and its wider significance for agriculture. However, the accessible style will appeal to a wider readership of agronomists, archaeologists, and even historians, who wish to explore the many interactions that have shaped the often crucial relationships between plants and human societies.

Agroecology is defined as the application of ecological concepts and principles to the design and management of sustainable food systems. Hence, learning can best be achieved through an experiential approach to the topic. Designed to accompany Agroecology: The Ecology of Sustainable Food Systems, Third Edition, Field and Laboratory Investigations in Agroecology, Third Edition features 24 investigations divided into five sections that parallel the main text: Studies of Environmental Factors: These investigations deal with how an individual plant responds to the environment, how environmental factors in specific agroecosystems are measured and characterized, and how particular environmental factors affect individual plants. Studies of Population Dynamics in Crop Systems: This section studies how populations of organisms act in agroecosystems. It focuses on what populations are present, how they change over time and respond to the environment, and how individuals within a population may interact. Studies of Interspecific Interactions in Cropping Communities: This section emphasizes the between-species interactions of the organisms that make up crop communities. These interactions include herbivory, allelopathy, and mutualisms. Studies of Farm and Field Systems: These investigations cover system-level agroecology and whole farms or systems within farm boundaries. They touch on the complexity with which the farmer deals in managing agroecosystems. Food System Studies: These investigations reach out beyond the individual farm to examine components of the food system at a local level, which impact all of the levels of analysis in the first four parts. This manual facilitates hands-on learning that involves close observation, creative interpretation, and constant questioning of findings. The investigations emphasize the importance of careful data interpretation and presentation and the value of a clear, concise, and well-written research report. The book uses simple statistical analysis for data management and interpretation and students are guided through the steps of data analysis in the context of the particular investigations in which it is employed.

Dies ist kein Buch iiber den Hunger in der "Dritten Welt" oder die EiweiB-Annut der Tropenbevolkerung. Es ist vielmehr dem natiir- lichen Reichtum der Tropen und Subtropen gewidmet. Einerseits handelt es von der Phylogenese und Domestikation der konventio- nellen tropischen Kulturpflanzen, beschreibt aber andererseits auch bisher wenig bekannte wilde und semi-kultivierte Gewachse, deren fortschreitende Selektion das Spektrum von Nutzpflanzen in den Aquatorialzonen bereichem wiirde. Ihre beschleunigte Domestika- tion aufgrund der neuzeitlichen Fortschritte in der Strahlengenetik, experimentellen Zytologie und Mutationsziichtung konnte eine Rei- he von Versaumnissen gutmachen, unter denen die gegenwartige Tropenlandwirtschaft leidet, und zur Milderung zahlreicher Proble- me der "Dritten Welt" beitragen. Die Anregungen zu diesem Buch gehen auf meine Spezialvorle- sungen und eigene langjahrige Experimentalarbeiten zuriick, die ich im Verlauf von drei lahrzehnten an mehreren Universitaten und Saatzuchtstationen der Alten und Neuen Welt durchgefUhrt habe. Das Geriist dieser Arbeit bilden ausgedehnte Sammelreisen und Ex- peditionen in den aquatorialen Breiten von Afrika, Amerika und Asien, die mir vor allem solche Kenntnisse vermittelten, die von weitverbreiteten Lehrbuchmeinungen abweichen.

Methods of Soil Enzymology provides the first comprehensive set of vetted methods for studying enzymes in soils. Readers will especially benefit from the step-by-step explanation of the lab procedures, as well as background information for using these methods effectively and analyzing data. Main topics include activity assays, enzyme extraction, and synthetic enzyme complexes. Each method covered includes background informaton, step-by-step descriptions of the procedure, and special comments regarding nuances, pitfalls, and interpretation of the method. This books includes the latest research methods, including enzyme extraction methods and procedures for creating synthetic enzyme complexes, as well as the newest ways to use small-scale and high-throughput methods for enzyme activity assays.