Strategy For The Optimal Climate Control Of Greenhouse Tomatoes Microform
DOWNLOAD
Download Strategy For The Optimal Climate Control Of Greenhouse Tomatoes Microform PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Strategy For The Optimal Climate Control Of Greenhouse Tomatoes Microform book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Strategy For The Optimal Climate Control Of Greenhouse Tomatoes Microform
DOWNLOAD
Author : Maher Trigui
language : en
Publisher: National Library of Canada = Bibliothèque nationale du Canada
Release Date : 2000
Strategy For The Optimal Climate Control Of Greenhouse Tomatoes Microform written by Maher Trigui and has been published by National Library of Canada = Bibliothèque nationale du Canada this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Greenhouses categories.
Strategy For The Optimal Climate Control Of Greenhouse Tomatoes
DOWNLOAD
Author : Maher Trigui
language : en
Publisher:
Release Date : 2000
Strategy For The Optimal Climate Control Of Greenhouse Tomatoes written by Maher Trigui and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Greenhouses categories.
"In Canada, the control of relative humidity is a key issue in greenhouse production as it has a direct and significant effect on dehumidification cost, crop quality and yield. Experiments were carried out to measure plant transpiration rate and fruit yield under four different ambient water vapour pressure deficits. Four identical greenhouses were used to produce tomatoes (Lycopersicon esculentum Mill.) under four different regimes of water vapour pressure deficit (VPD). Dehumidification costs were highly correlated to VPD: low VPD produced low transpiration requiring little dehumidification. Thus, managing plant transpiration can lead to a more efficient use of transpiration for crop production. A model was developed to optimise greenhouse climatic conditions to maximize net profit. The present project validated this model, and compared measured values with those calculated from the transpiration and condensation sub-models and from the entire model itself. The sub-models and entire model proved to be accurate within 3% when used to simulate ideal climatic conditions for periods of one week or longer. Model sensitivity was greatest for exterior temperature because this factor affects heating costs without increasing yields. Using winter climatic conditions typical of Quebec City, Canada, three greenhouse climate control strategies were simulated and compared with respect to energy consumption and yield of a tomato crop. The merit and drawback of each strategy are discussed." --
Integrated Greenhouse Systems For Mild Climates
DOWNLOAD
Author : Christian von Zabeltitz
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-10-01
Integrated Greenhouse Systems For Mild Climates written by Christian von Zabeltitz and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10-01 with Technology & Engineering categories.
Crop production in greenhouses is a growing industry, especially in mild climates, and is very important for the population as a source of income and clean, fresh food. Greenhouses create optimal climate conditions for crop growth and protect crops from outside pests. At the same time greenhouse production increases water use efficiency and makes integrated production and protection (IPP) possible. This book provides technical instructions for practice (what to do and what not to do) and gives answers to the question: How to produce more clean crops and better quality with less water, less land and less pesticide. Suitable greenhouse constructions and their design, adapted to local climates in subtropical, tropical and arid regions and infrastructure conditions are presented. The necessary climate control measures - light transmittance, ventilation, cooling, heating, and CO2 enrichment - and physical measures for pest control, as well as methods for using solar energy to desalinate salty water are described. The results of theoretical research are transferred into methods for practical use, so that readers are equipped to solve their problems in practice as well as to get stimulation for further research and development.
Analyzing Energy Saving Options In Greenhouse Cultivation Using A Simulation Model
DOWNLOAD
Author : H. F. de Zwart
language : en
Publisher:
Release Date : 1996
Analyzing Energy Saving Options In Greenhouse Cultivation Using A Simulation Model written by H. F. de Zwart and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Return To Resistance
DOWNLOAD
Author : Raoul A. Robinson
language : en
Publisher: IDRC
Release Date : 1996
Return To Resistance written by Raoul A. Robinson and has been published by IDRC this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Agricultural pests categories.
In the tradition of Silent Spring, Raoul Robinson's Return to Resistance calls for a revolution. Traditional plant breeding techniques have led us to depend more and more on chemical pesticides to protect ourcrops. Return to Resistance shows gardeners, farmers, and plant breeders how to use a long-neglected technique to create hardy new plant varieties that are naturally resistant to pests and disease. Horizontal resistance breeding has been largely ignored in this century due to the popularity and apparent successes of the Mendelian geneticists. However the colossal, unrecognized failure of m.
Australian National Bibliography
DOWNLOAD
Author :
language : en
Publisher: National Library Australia
Release Date : 1961
Australian National Bibliography written by and has been published by National Library Australia this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with categories.
Physical Control Methods In Plant Protection
DOWNLOAD
Author : Charles Vincent
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Physical Control Methods In Plant Protection written by Charles Vincent and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Technology & Engineering categories.
Jointly published with INRA, Paris. Pesticide resistance is becoming more frequent and widespread with more than 500 insect species known to have become resistant to synthetic insecticides. On the other hand, consumers increasingly demand agricultural products without any pesticide residues. This book, for the first time, shows the alternative: solely physical methods for plant protection by means of thermal, electromagnetic, mechanical and vacuum processes. A glossary rounds up this extremely valuable book.
Agro Ecological Assessments For National Planning
DOWNLOAD
Author : Food and Agriculture Organization of the United Nations. Soil Resources, Management, and Conservation Service
language : en
Publisher: Food & Agriculture Org.
Release Date : 1993
Agro Ecological Assessments For National Planning written by Food and Agriculture Organization of the United Nations. Soil Resources, Management, and Conservation Service and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Business & Economics categories.
Bibliography Of Agriculture
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1990
Bibliography Of Agriculture written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Agriculture categories.
Microbial Strategies For Crop Improvement
DOWNLOAD
Author : Mohammad Saghir Khan
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-08-25
Microbial Strategies For Crop Improvement written by Mohammad Saghir Khan and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-08-25 with Technology & Engineering categories.
With an ever-increasing human population, the demand placed upon the agriculture sector to supply more food is one of the greatest challenges for the agrarian community. In order to meet this challenge, environmentally unfriendly agroch- icals have played a key role in the green revolution and are even today commonly recommended to circumvent nutrient de?ciencies of the soils. The use of ag- chemicals is, though, a major factor for improvement of plant production; it causes a profound deteriorating effect on soil health (soil fertility) and in turn negatively affects the productivity and sustainability of crops. Concern over disturbance to the microbial diversity and consequently soil fertility (as these microbes are involved in biogeochemical processes), as well as economic constraints, have prompted fun- mental and applied research to look for new agro-biotechnologies that can ensure competitive yields by providing suf?ciently not only essential nutrients to the plants but also help to protect the health of soils by mitigating the toxic effects of certain pollutants. In this regard, the role of naturally abundant yet functionally fully unexplored microorganisms such as biofertilizers assume a special signi?cance in the context of supplementing plant nutrients, cost and environmental impact under both conventional practices and derelict environments. Therefore, current devel- ments in sustainability involve a rational exploitation of soil microbial communities and the use of inexpensive, though less bio-available, sources of plant nutrients, which may be made available to plants by microbially-mediated processes.