Download or read book Exchange Equilibria and Sorption desorption Kinetics of Potassium in Soils of Varying Organic Matter Content and Soil Reaction written by S.K. Saha and published by . This book was released on 1982 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extended Abstracts Fourth International Conference on the Biogeochemistry of Trace Elements written by and published by . This book was released on 1997 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Physical Chemistry written by Donald L. Sparks and published by Springer. This book was released on 1986-03-31 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil Physical Chemistry, Second Edition takes up where the last edition left off. With comprehensive and contemporary discussions on equilibrium and kinetic aspects of major soil chemical process and reactions this excellent text/reference presents new chapters on precipitation/dissolution, modeling of adsorption reactions at the mineral/water interface, and the chemistry of humic substances. An emphasis is placed on understanding soil chemical reactions from a microscopic point of view and rigorous theoretical developments such as the use of modern in situ surface chemical probes such as x-ray adsorption fine structure (XAFS), Fournier transform infrared (FTIR) spectroscopies, and scanning probe microscopies (SPM) are discussed.
Download or read book Improving Potassium Recommendations for Agricultural Crops written by T. Scott Murrell and published by Springer. This book was released on 2022 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book highlights concepts discussed at two international conferences that brought together world-renowned scientists to advance the science of potassium (K) recommendations for crops. There was general agreement that the potassium recommendations currently in general use are oversimplified, outdated, and jeopardize soil, plant, and human health. Accordingly, this book puts forward a significantly expanded K cycle that more accurately depicts K inputs, losses and transformations in soils. This new cycle serves as both the conceptual basis for the scientific discussions in this book and a framework upon which to build future improvements. Previously used approaches are critically reviewed and assessed, not only for their relevance to future enhancements, but also for their use as metrics of sustainability. An initial effort is made to link K nutrition in crops and K nutrition in humans. The book offers an invaluable asset for graduate students, educators, industry scientists, data scientists, and advanced agronomists.
Download or read book Kinetics of Trace Metals Sorption on and Desorption from Soils written by Zhenqing Shi and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the kinetics of trace metals sorption and desorption on soils is important for better prediction of metal behavior in the environment. In this dissertation, the effect of solution chemistry and soil composition on trace metal sorption and desorption kinetics was investigated. Based on the experimental results, predictive kinetics models were formulated and successfully used to describe the kinetics of trace metals sorption and desorption on a variety of soils. The kinetics experiments were conducted with a stirred-flow method. A number of soil samples, which cover a wide range of soil properties from USA and European countries, were selected to test the effect of soil composition. The effects of solution chemistry, pH, metal loadings, and dissolved organic matter (DOM) concentration, were also systematically examined. Most of kinetics experiments were run with two trace metals, copper and zinc, which demonstrated very different kinetics behaviors. The solution pH has significant effect on the Cu and Zn sorption and desorption kinetics which can be accounted by the proton competition. DOM greatly enhanced Cu release but had little effect on Zn, attributed to formation of strong Cu-DOM complex decreasing the Cu ion re-adsorption on soils. Among all soil components, soil organic matter (SOM) is the dominant phase controlling Cu and Zn sorption and desorption kinetics. The effect of residence time was also tested. The kinetics models were formulated and successfully used to describe the Cu and Zn sorption and desorption kinetics under different solution chemistry and soil compositions. The models are based on the mass balance of the flow system and incorporate the chemical reactions between metals and soils. For Zn, a two-site kinetics model, including one fast and one slow site, was necessary. The soil organic carbon (SOC) is the major model parameter accounting for the effect of soil properties on Zn sorption and desorption kinetics. The organic carbon normalized sorption rate coefficients can be applied to different soils based on their SOC concentrations. One set of rate coefficients can be applied to different influent Zn concentrations, which corresponds to the linear portion of the Zn sorption isotherm. The sorption rate coefficients were dependent on solution pH which was accounted for by Zn and proton competition. The same model parameters can be applied to different flow rates. (Abstract shortened by UMI.).
Download or read book Equilibria and Kinetics of Nonionic Organic Compound Sorption in Soil Organic Matter written by Tyler Thomas Ames and published by . This book was released on 1994 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reactions with Variable Charge Soils written by J. Barrow and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Doctoral Dissertations written by and published by . This book was released on 1987 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Processes in Soils written by M. A. Tabatabai and published by . This book was released on 2005 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potassium Exchange Equilibria in Some Potassium Deficient Soils written by Patrick John Phelan and published by . This book was released on 1987 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings Soil Science Society of America written by Soil Science Society of America and published by . This book was released on 1975 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potassium Adsorption and Desorption Kinetics in a Soil System and Its Relation to Plant Uptake written by Donald L. Sparks and published by . This book was released on 1979 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rates of Soil Chemical Processes written by Donald L. Sparks and published by . This book was released on 1991 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kinetics of soil chemical reactions. Methods of obtaining and analyzin kinetic data. Relaxation methods for studying kinetics of soil chemical phenomena. Kinetics of ion sorptionon humic substances. Kinetics of sorption/desorption processes in soils. Modelling nonequilibrium reactions of inorganic solutes in soil columns. Sorption kinetics of organic chemicals: methods, models, and mechanisms.
Download or read book Potassium Adsorption and Desorption Kinetics in Some Soils of Haryana Under Different Cropping Sequences with CD Copy written by Vivek Shankar and published by . This book was released on 2006 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potassium Selectivity Exhibited by Various Exchange Materials in Equilibrium with Dilute Sodium potassium Solutions written by David Lee Dolcater and published by . This book was released on 1966 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potassium in the Soil plant Root System written by and published by . This book was released on 1980 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
