Suggested Method of Test for Soluble Salts in Soil PDF Download
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Author: RT. Martin
Publisher:
ISBN:
Category : Matter
Languages : en
Pages : 3
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Book Description
The method is a rapid, simple procedure for the determination of soluble salt in soils. The electrical conductivity of the supernatant liquid is used to approximate the soluble salts present in the soil pore fluid. The method is not intended to be precise; however, on a relative basis reliable comparisons can be made. At any one location, the method permits very small changes in pore fluid salt concentration to be accurately measured. For a detailed discussion of the method, the reader is referred to "Methods of Soil Analysis, Part 2," Section 62, published by the American Society of Agronomy in cooperation with ASTM.
Author: RT. Martin
Publisher:
ISBN:
Category : Matter
Languages : en
Pages : 3
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Book Description
The method is a rapid, simple procedure for the determination of soluble salt in soils. The electrical conductivity of the supernatant liquid is used to approximate the soluble salts present in the soil pore fluid. The method is not intended to be precise; however, on a relative basis reliable comparisons can be made. At any one location, the method permits very small changes in pore fluid salt concentration to be accurately measured. For a detailed discussion of the method, the reader is referred to "Methods of Soil Analysis, Part 2," Section 62, published by the American Society of Agronomy in cooperation with ASTM.
Author: D. L. Sparks
Publisher: John Wiley & Sons
ISBN: 0891188258
Category : Technology & Engineering
Languages : en
Pages : 1424
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Book Description
A thorough presentation of analytical methods for characterizing soil chemical properties and processes, Methods, Part 3 includes chapters on Fourier transform infrared, Raman, electron spin resonance, x-ray photoelectron, and x-ray absorption fine structure spectroscopies, and more.
Author:
Publisher: ASTM International
ISBN:
Category :
Languages : en
Pages : 643
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Book Description
Author: Mohammad Zaman
Publisher: Springer
ISBN: 331996190X
Category : Nature
Languages : en
Pages : 164
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Book Description
This open access book is an outcome of the collaboration between the Soil and Water Management & Crop Nutrition Section, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Department of Nuclear Sciences and Applications, International Atomic Energy Agency (IAEA), Vienna, Austria, and Dr. Shabbir A Shahid, Senior Salinity Management Expert, Freelancer based in United Arab Emirates.The objective of this book is to develop protocols for salinity and sodicity assessment and develop mitigation and adaptation measures to use saline and sodic soils sustainably. The focus is on important issues related to salinity and sodicity and to describe these in an easy and user friendly way. The information has been compiled from the latest published literature and from the authors’ publications specific to the subject matter. The book consists of six chapters. Chapter 1 introduces the terms salinity and sodicity and describes various salinity classification systems commonly used around the world. Chapter 2 reviews global distribution of salinization and socioeconomic aspects related to salinity and crop production. Chapters 3 covers comprehensively salinity and sodicity adaptation and mitigation options including physical, chemical, hydrological and biological methods. Chapter 4 discusses the efforts that have been made to demonstrate the development of soil salinity zones under different irrigation systems. Chapter 5 discusses the quality of irrigation water, boron toxicity and relative tolerance to boron, the effects of chlorides on crops. Chapter 6 introduces the role of nuclear techniques in saline agriculture.
Author: Milton Whitney
Publisher: Forgotten Books
ISBN: 9781527809000
Category : Science
Languages : en
Pages : 36
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Book Description
Excerpt from An Electrical Method of Determining the Soluble Salt Content of Soils: With Some Results of Investigations on the Effect of Water and Soluble Salts on the Electrical Resistance of Soils The moist soil is thoroughly mixed with a Dover's egg'beater, securely fastened to a sh elf or table, to distribute the water uniform throughout the mass of soil. The soil must not be mixed with the hands, as the salts from the hands are liable to Vitiate the results, especially in a warm room where the hands are perspiring freely. The soil should be put in a round-bottom bowl or in a heavy glass cover, such as is used in the laboratory to protect apparatus and specimens from dust. With clay soils especially it is well to empty the soil out of the bowl and pour it back again once to insure thorough mixin g of the water or solution throughout the mass of soil. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Alan J. Lutenegger
Publisher: CRC Press
ISBN: 1000692396
Category : Technology & Engineering
Languages : en
Pages : 331
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Book Description
This manual presents procedures for performing advanced laboratory tests on fine-grained soils. It covers characterization tests, which determine soil composition and quantify the individual components of a soil, and behavioral tests, such as the Atterberg Limits tests that demonstrate how the fines fraction of a soil reacts when mixed with water and the Linear Shrinkage Test that demonstrates how much a soil shrinks. The material goes beyond traditional evaluation of basic soil behavior by presenting more advanced laboratory tests to characterize soil in more detail. These tests provide detailed compositional characteristics which identify subtle changes in conditions and vertical variations in the soil, and which help to explain unusual behavior. A unique compilation of information on key soil tests Combines characterization tests with behavior tests The book suits graduate students in geotechnical engineering, as well as practitioners and researchers.
Author: J. Loveday
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: J. D. Rhoades
Publisher: Food & Agriculture Org.
ISBN: 9789251042816
Category : Technology & Engineering
Languages : en
Pages : 172
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Book Description
Determination of soil salinity from aqueous electrical conductivity; determination of soil salinity from soil-paste and bulk soil electrical conductivity; example uses of salinity assessment technology; operational and equipment costs associated with salinity instrumentation measurement techniques.
Author: OSB Al-Amoudi
Publisher:
ISBN:
Category : Arid soils
Languages : en
Pages : 11
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Book Description
Arid, saline soils are residual in nature, highly cemented, and formed in hot, arid environments. The presence of soluble and insoluble salts affects the geotechnical properties of these soils. Techniques used to determine the properties of these soils should take into consideration the presence of diagenetic minerals that are considered part of these soils. In this investigation, a typical arid, saline, evaporitic soil, known locally as sabkha, was tested to determine its grain-size characteristics, hydraulic conductivity, compressibility, and collapse potential using standard ASTM methods and nonstandard techniques. The presence of soluble salts necessitates modifications to these standard test methods to properly assess the properties of these soils. Erratum to this paper appears in 17(3).
Author: Soil and Plant Analysis Council Inc.
Publisher: CRC Press
ISBN: 135141612X
Category : Science
Languages : en
Pages : 265
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Book Description
For more than 30 years, soil testing has been widely used as a basis for determining lime and fertilizer needs. Today, a number of procedures are used for determining everything from soil pH and lime requirement, to the level of extractable nutrient elements. And as the number of cropped fields being tested increases, more and more farmers and growers will come to rely on soil test results. But if soil testing is to be an effective means of evaluating the fertility status of soils, standardization of methodology is essential. No single test is appropriate for all soils. Soil Analysis Handbook of Reference Methods is a standard laboratory technique manual for the most commonly used soil analysis procedures. First published in 1974, this Handbook has changed over the years to reflect evolving needs. New test methods and modifications have been added, as well as new sections on nitrate, heavy metals, and quality assurance plans for agricultural testing laboratories. Compiled by the Soil and Plant Analysis Council, this latest edition of Soil Analysis Handbook of Reference Methods also addresses the major methods for managing plant nutrition currently in use in the United States and other parts of the world. For soil scientists, farmers, growers, or anyone with an interest in the environment, this reference will prove an invaluable guide to standard methods for soil testing well into the future. Features
