Optimal Control of Greenhouse Cultivation - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Optimal Control of Greenhouse Cultivation write by Gerrit van Straten. This book was released on 2010-11-08. Optimal Control of Greenhouse Cultivation available in PDF, EPUB and Kindle. Greenhouse control system manufacturers produce equipment and software with hundreds of settings and, while they hold training courses on how to adjust these settings, there is as yet no integrated instruction on when or why. Despite rapid growth in the greenhouse industry, growers are still faced with a multitude of variables and no unifying frame
Modeling and Control of Greenhouse Crop Growth
Modeling and Control of Greenhouse Crop Growth - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Modeling and Control of Greenhouse Crop Growth write by Francisco Rodríguez. This book was released on 2014-11-01. Modeling and Control of Greenhouse Crop Growth available in PDF, EPUB and Kindle. 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.
Mathematical and Control Applications in Agriculture and Horticulture
Mathematical and Control Applications in Agriculture and Horticulture - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Mathematical and Control Applications in Agriculture and Horticulture write by W. Day. This book was released on 2014-07-04. Mathematical and Control Applications in Agriculture and Horticulture available in PDF, EPUB and Kindle. This title provides a general overview of recent developments and research into types of systems and their uses in the agricultural and horticultural industry. 64 papers are included, containing both theoretical models and applied examples for greenhouse systems, harvesting technology and plant factory systems.
Geothermal, Wind and Solar Energy Applications in Agriculture and Aquaculture
Geothermal, Wind and Solar Energy Applications in Agriculture and Aquaculture - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Geothermal, Wind and Solar Energy Applications in Agriculture and Aquaculture write by Jochen Bundschuh. This book was released on 2017-08-02. Geothermal, Wind and Solar Energy Applications in Agriculture and Aquaculture available in PDF, EPUB and Kindle. The agri-food chain consumes about one third of the world’s energy production with about 12% of it for crop production and nearly 80% for processing, distribution, retail, preparation and cooking. The agri-food chain also accounts for 80-90% of total global freshwater use where 70% alone is for irrigation. Additionally, on a global scale, freshwater production consumes nearly 15% of the entire energy production. It can therefore be argued that making agriculture and the agri-food supply chain independent from fossil fuel use has a huge potential to contribute to global food security and climate protection not only for the next decades but also for the coming century. Provision of secure, accessible and environmentally sustainable supplies of water, energy and food must thus be a priority. One of the major objectives of the world’s scientists, farmers, decisions makers and industrialists is to overcome the present dependence on fossil fuels in the agro-food sector. This dependency increases the volatility of food prices and affects economic access to sustenance. This book provides a critical review of recent developments in solar, wind and geothermal energy applications in agriculture and the agro-food sector such as processing, distribution, retail, preparation and cooking.
Plant Nutrition of Greenhouse Crops
Plant Nutrition of Greenhouse Crops - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Plant Nutrition of Greenhouse Crops write by Cees Sonneveld. This book was released on 2009-09-18. Plant Nutrition of Greenhouse Crops available in PDF, EPUB and Kindle. Greenhouse cultivation is noted for its high uptake of minerals, consistent climatic conditions, exclusion of natural precipitation and control of salt accumulation. Acknowledging that plant nutrition in greenhouse cultivation differs in many essentials from field production, this volume details specific information about testing methods for soils and substrates in a greenhouse environment. It does so while offering a universally applicable analysis. This is based on the composition of the soil and substrate solutions, methods for the interpretation of tissue tests, and crop responses on salinity and water supply in relation to fertilizer application. Fertilizer additions, related to analytical data of soil and substrate samples, are presented for a wide range of vegetable and ornamental crops. The subject is especially apt now as substrate growing offers excellent possibilities for the optimal use of water and nutrients, as well as the potential for sustainable production methods for greenhouse crops.
