Progress In Soil Zoology
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Progress In Soil Zoology
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Author : J. Vanek
language : en
Publisher:
Release Date : 1978
Progress In Soil Zoology written by J. Vanek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.
Progress In Soil Zoology
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Author : J. Vanek
language : en
Publisher: Springer
Release Date : 2014-07-08
Progress In Soil Zoology written by J. Vanek and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-08 with Nature categories.
Ladies a n d g e n t 1 e m e n , I have the pleasure to welcome you here in Prague in the name of the Czechoslovak Academy of Sciences and to open the Fifth Inter national Colloquium on Soil Zoology. We are very glad that Czecho slovakia was chosen for this important meeting. It is clear to all of us that the soil plays and will play a de cisive part in providing food for the explosive increase of human pop ulation. For this reason we watch with great anxiety the negative influence of human activities on the environment accompanied also by the other destructive intervention into the soil ecosystem, its devas tation by inefficient management, application of herbicides and pesti cides pollution by the waste products of industry and human settlements. The basis for solving these accumulating and now sometimes latent prob lems is among others a good knowledge of the role of soil organisms in the cycles of materials and in the energy flow. Soil zoology as a part of soil biology is still at the beginning of this trend The lack of in formation about life in soil is obvious when compared with the results of a related biological science dealing with the water ecosystem.
Progress In Soil Zoology
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Author : J. Vanek
language : en
Publisher:
Release Date : 2014-09-18
Progress In Soil Zoology written by J. Vanek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-09-18 with categories.
Progress In Soil Zoology
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Author : J. Vanek
language : en
Publisher:
Release Date : 1978
Progress In Soil Zoology written by J. Vanek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.
Progress In Soil Zoology
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Author : Paul W. Murphy
language : en
Publisher:
Release Date : 1962
Progress In Soil Zoology written by Paul W. Murphy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with categories.
Progress In Soil Zoology
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Author : Jan Vaněk
language : de
Publisher:
Release Date : 1975
Progress In Soil Zoology written by Jan Vaněk and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with categories.
Advances In Soil Science
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Author :
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Advances In Soil Science written by 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 2012-12-06 with Technology & Engineering categories.
The study of soils today has taken on increased importance because a rapidly expanding population is placing demands on the soil never before experienced. This has led to an increase in land degradation. Land degradation is one of the most severe problems facing mankind. Volume 11 of Advances in Soil Science was devoted entirely to this critical area of soil science. From the beginning of agriculture until about 1950, increased food production came almost entirely from expanding the cropland base. Since 1950, however, the yield per unit of land area for major crops has increased dramatically. Much of the increase in yields was because of increased inputs of energy. Between 1950 and 1985, the farm tractor fleet quadrupled, world irrigated area tripled, and use of fertilizer increased ninefold. Between 1950 and 1985, the total energy used in world agriculture increased 6. 9 times. Until recently, sustainability was seldom, if ever, mentioned in agricultural literature. Now, it is one of the most widely used terms. The high costs ofirriga tion development, escalating energy costs during the 1970s, public concern over potential negative impacts of fertilizer and pesticides on water supplies, soil ero sion, soil compaction and salinity problems, and other concerns have caused many people to question whether many of the present agriculture systems can be sustained. As a result, soil science is beginning to focus more on sustaining the resource base.
Progress In Soil Zoology
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Author : Paul W. Murphy
language : en
Publisher:
Release Date : 1962
Progress In Soil Zoology written by Paul W. Murphy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Soil animals categories.
Methods of sampling and analysis - statistical aspects; Extraction processes and accessory techniques; Site characteristics with particular reference to pedological aspects.
Bibliography Of Agriculture
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Author :
language : en
Publisher:
Release Date : 1963
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 1963 with Agriculture categories.
Advances In Soil Science
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Author : J B Harsh
language : en
Publisher:
Release Date : 1990-06-26
Advances In Soil Science written by J B Harsh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-06-26 with categories.
This will be a regular volume in this series of critical review articles. They are: 1. Assessing and Managing Agricultural Nitrogen Losses to the Environment, by Smith, Schepers, and Porter. 2. Assessing and Modifying Ca and Al Levels in Acid Subsoils, by McCray and Sumner. 3. Applications of Electron Spin Resonance Spectroscopy in Soil Chemistry, by Senesi. 4. Microelectrophoresis Applied to the Surface Chemistry of Clay Minerals, by Harsh and Xu. 5. Applications of Luminescence Spectroscopy to Studies of Colloid-Solution Interfaces, by Traina.