A current and invaluable source for agricultural scientists, researchers, vegetable growers and professional entrepreneurs enabling them to understand the fundamentals of greenhouse technology applicable to vegetable production, crop drying, poultry farms, space heating etc. Imparts systematic information about the historical background, importance and reviews work in a global perspective. It provides design, construction, instrumentation and error analysis in greenhouse. The basic tools like knowledge of solar energy, solar fraction and heat transfer has also been elaborated upon, as well as different heating / cooling concepts used to control a favorable environment condition inside greenhouses, including information on constituents of inside environment, root media, various crop production, thermal modeling, energy analysis and economic aspects of greenhouse technology.

Translation of the second ed.: Invernaderos de plaastico: tecnologaia y manejo.

A greenhouse provides an essential means of livelihood to its owner and must be economically practical for the particular climate in which it stands. Greenhouses: Advanced Technology for Protected Horticulture addresses the major environmental factors of light, temperature, water, nutrition, and carbon dioxide, and features extensive discussions of greenhouse types, construction, and climate control. The book highlights technology such as hydroponics, computer control of environments, and advanced mathematical procedures for environmental optimization. Greenhouses: Advanced Technology for Protected Horticulture is the definitive text/reference for the science of greenhouse engineering and management. The author Dr. Joe J. Hanan, Professor Emeritus of Colorado State University, is the recipient of the Society of American Florists' (SAF) 2000 (Millenium) Alex Laurie Award for Research and Education. The Alex Laurie Award is presented annually to an individual who has made broad-scope, long-lasting contributions to the floriculture industry through research or education. The award is named for Alex Laurie, a professor at The Ohio State University, who pioneered work in many areas of floriculture. "Joe is one of the most precise floricultural researchers I have known," said Dr. Gus De Hertogh, Chairman of SAF's Research Committee. "That excellence is reflected in his latest book, Greenhouses, Advanced Technology for Protected Horticulture, which was published in 1998, nine years after his official 'retirement.'"

Much has changed and improved in lighting technology over the past 10 years since industry-leading experts on lighting, in collaboration with Greenhouse Grower(r) magazine and Meister Media Worldwide, brought you Lighting Up Profits (Fisher and Runkle, 2004).This updated and substantially expanded book presents the underlying biology of how light influences plant growth and development of specialty crops, especially those grown in greenhouses and controlled-environment growth rooms. Authors Dr. Erik Runkle of Michigan State University and Dr. Roberto Lopez of Michigan State University, along with 19 other leading plant scientists from around the globe, discuss technology options for shade and lighting, including the latest developments in greenhouse and sole-source lighting.

Greenhouse horticulture is one of the most intensive agricultural systems, focusing on the production of high-value products. This book presents current research findings that cover a wide range of new technologies and novel agricultural practices, which are preconditions for successful production in a very competitive global environment.

This book provides an integrated approach to crop growth and development and the technical aspects of greenhouse cultivation and climate management. It combines an analysis of the relationship between crop production and ambient climate with an explanation of the processes that determine the climate in a protected environment. With the ability to modify the environment comes the need for growers to strike a balance between the costs and benefits of technology. This book outlines the methods and gives several examples of how to make 'optimal' choices about technology. Sustainable management of shoot and root environment is discussed, as well as the pros and cons of vertical farming. The processes addressed in this book, like crop growth, energy balance and mass exchange, apply to any kind of greenhouse. Therefore, in spite of the word 'technology', this is not a book about high-tech greenhouses only. 'Greenhouse horticulture' is an easy-to-read textbook for all those interested in protected cultivation, from university students and teachers to professional advisers in the field and managers of horticultural companies.

Sustainability is defined as the use of natural resources without risking their exploitation by future generations. Agriculture can only be considered as sustainable if it includes a suitable system of plant genetic resources conservation. In this book, the modern concepts of agricultural sustainability and the economics of agricultural sustainability are discussed. A new framework for analysis and improvement of the governance of agrarian sustainability is presented. In addition, specific modes for environmental governance in Bulgarian agriculture are identified and the efficiency of market, private and public modes are assessed. Furthermore, the regulation measures through nutrient solution regulation and environmental control on nitrate accumulation in vegetables are summarised, highlighting the control strategy. Arguments for and against government strategies to promote large-scale agricultural units in emerging economies are also analysed and an economic theory that models agricultural supply in emerging economies is presented. Other chapters in this book describe the role of fluorescent pseudomonads in soil fertility, biodegradation of agricultural pollutants, plant growth-promotion, biocontrol of weeds, phytopathogens and nematodes. Information about the global relevance of China's and Australia's cotton industries are also given, and the structure and other significant features of their cotton industries are compared. The main characteristics and importance of plant growth-promoting bacteria in sustainable agriculture in tropical agriculture are looked at as well. Developing alternative ways to control plant disease, with good agronomic and horticultural practices is becoming the focus of many researchers. This book also includes information on ways to control plant diseases in order to maintain the quality and abundance of food produced by growers around the world.

Greenhouses are framed or inflated structures, covered with transparent or translucent material in which crops are grown. Greenhouse cultivation and other models of environment cultivation have been evolved to create favourable micro-climates under which crop production is made possible. Greenhouse food production provides forward movement with a greater degree of environment control. It presents the ultimate in intensive agriculture considering three major factors: land; labour; and capital.

This book deals with different types of greenhouses, materials, structures, advanced control techniques and tendencies that are needed for designing and controlling an advanced greenhouse. The control system is presented as an integral system which covers the explanation of basic and advanced concepts for a real time controller. Also, structural analysis is introduced, whereby mechanical design is regarded as a key factor. The book incorporates simulations and experimental results, and utilizes LabVIEW and ADAMS software. Finally, it provides a perspective on the present state and future of greenhouses globally.

A discussion of challenges related to the modeling and control of greenhouse crop growth, this book presents state-of-the-art answers to those challenges. The authors model the subsystems involved in successful greenhouse control using different techniques and show how the models obtained can be exploited for simulation or control design; they suggest ideas for the development of physical and/or black-box models for this purpose. Strategies for the control of climate- and irrigation-related variables are brought forward. The uses of PID control and feedforward compensators, both widely used in commercial tools, are summarized. The benefits of advanced control techniques—event-based, robust, and predictive control, for example—are used to improve on the performance of those basic methods. A hierarchical control architecture is developed governed by a high-level multiobjective optimization approach rather than traditional constrained optimization and artificial intelligence techniques. Reference trajectories are found for diurnal and nocturnal temperatures (climate-related setpoints) and electrical conductivity (fertirrigation-related setpoints). The objectives are to maximize profit, fruit quality, and water-use efficiency, these being encouraged by current international rules. Illustrative practical results selected from those obtained in an industrial greenhouse during the last eight years are shown and described. The text of the book is complemented by the use of illustrations, tables and real examples which are helpful in understanding the material. Modeling and Control of Greenhouse Crop Growth will be of interest to industrial engineers, academic researchers and graduates from agricultural, chemical, and process-control backgrounds.