Computer Simulation Model of Dynamic Bio-physicochemical Processes in Soils PDF Download
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Author: Gordon R. Dutt
Publisher:
ISBN:
Category : Soil biochemistry
Languages : en
Pages : 108
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Book Description
Author: Gordon R. Dutt
Publisher:
ISBN:
Category : Soil biochemistry
Languages : en
Pages : 108
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Book Description
Author: J. Tinsley
Publisher: Springer Science & Business Media
ISBN: 9400961014
Category : Nature
Languages : en
Pages : 409
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Book Description
The success of shifting cultivation systems developed by subsistence farmers testifies to the resilience of the "natural" soil-plant ecosystems to recover from the offtake of nutrients in crops and loss of soil struc ture. By contrast, the development of intensive cropping systems requires large inputs especially of nitrogen, together with phosphorus, sulphur and other essential elements in order to maintain the nutrient levels needed for abundant crop yields. As Dr. Cooke ably pointed out in his introductory lecture, the dis coveries and experiments of the 19th century encouraged farmers in temperate zones to rely greatly on chemical fertilizers supplements. However, the work of Charles Da{win on soil mixing by earthworms and the discovery by Hellriegel and Wilfarth in 1886 that the nodules on legume roots contain colonies of symbiotic bacteria able to "capture" atmospheric nitrogen molecules to the benefit of the host plant heralded a growing realization of the importance of soil biota in fertility studies. Biological fixation of nitrogen has been the theme of many meetings and publi~ations hitherto but at this Conference, convened on the delightful campus of Reading University, attention was mainly focussed on other biological processes in soil fertility. These Proceedings record the dominant themes and include six keynote addresses delivered at plenary sessions and seven introductory lectures to paper reading sessions by invited individuals plus 22 of the proferred papers, in six sections as tabled in the contents list.
Author: Donald L. Sparks
Publisher: Academic Press
ISBN: 1483289192
Category : Science
Languages : en
Pages : 227
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Book Description
The kinetics of reactions in soil and aquatic environments is a topic of extreme importance and interest. To properly understand the fate of applied fertilizers, pesticides, and organic pollutants with time, and to thus improve nutrient availability and the quality of our groundwater, one must study kinetics. This is the first compre Demonstrates different kinetic methodologies Shows how reactions on soil and soil constituents can be measured by utilizing different techniques Describes rates and mechanisms of interactions with pesticides and organic pollutants with soil Covers the kinetics of chemical weathering Discusses how to use mathematical modeling and computer simulation to model kinetic reactions
Author:
Publisher:
ISBN:
Category : Environmental engineering
Languages : en
Pages : 872
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Author:
Publisher:
ISBN:
Category : Environmental engineering
Languages : en
Pages : 840
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Book Description
Author: Robert Kingsley Hubbard
Publisher:
ISBN:
Category : Kidney bean
Languages : en
Pages : 416
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Book Description
Author: Lajpat R. Ahuja
Publisher: John Wiley & Sons
ISBN: 0891183876
Category : Technology & Engineering
Languages : en
Pages : 420
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Book Description
Modeling Processes and Their Interactions in Cropping Systems A complete discussion of soil-plant-climate-management processes In Modeling Processes and Their Interactions in Cropping Systems: Challenges for the 21st Century, a team of distinguished researchers delivers a comprehensive and up-to-date scientific textbook devoted to teaching the modeling of soil-plant-climate-management processes at the upper undergraduate and graduate levels. The book emphasizes the new opportunities and paradigms available to modern lab and field researchers and aims to improve their understanding and quantification of individual processes and their interactions. The book helps readers quantify field research results in terms of the fundamental theory and concepts broadly generalizable beyond specific sites, as well as predict experimental results from knowledge of the fundamental factors that determine the environment and plant growth in different climates. Readers will also discover: An introduction to water and chemical transport in the soil matrix and macropores Explorations of heat transport, water balance, snowpack, and soil freezing Discussions of merging machine learning with APSIM models to improve the evaluation of the impact of climate extremes on wheat yields in Australia Examinations of the quantification and modeling of management effects on soil properties, including discussions of tillage, reconsolidation, crop residues, and crop management The book will be essential reading for anyone interested in the 2030 breakthroughs in agriculture identified by the National Academies of Sciences, Engineering, and Medicine.
Author: Lajpat R. Ahuja
Publisher: CRC Press
ISBN: 1000738086
Category : Science
Languages : en
Pages : 407
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Book Description
Most books covering the use of computer models in agricultural management systems target only one or two types of models. There are few texts available that cover the subject of systems modeling comprehensively and that deal with various approaches, applications, evaluations, and uses for technology transfer. Agricultural System Models in Field Res
Author: W.K. Lauenroth
Publisher: Elsevier
ISBN: 0444597654
Category : Science
Languages : en
Pages : 995
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Book Description
The International Society for Ecological Modelling (ISEM) sponsors conferences, workshops and training courses with the aim of advancing the development of ecological and environmental modelling. The 3rd International Conference on the state-of-the-art in ecological modelling was sponsored by the ISEM in cooperation with the National Park Service Water Resources Laboratory and hosted by the Natural Resource Ecology Laboratory at Colorado State University. Its theme was the application of ecological modelling to environmental management and this book contains the full texts of the three invited papers presented in the five general sessions, plus the final summaries and syntheses of the topics covered during those sessions.
Author:
Publisher:
ISBN:
Category : Arctic regions
Languages : en
Pages : 44
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Book Description
