Journal ArticleDOI
Buffer Methods for Determining Lime Requirement of Soils With Appreciable Amounts of Extractable Aluminum
TLDR
In this paper, an improved soil test buffer method was developed for rapid routine laboratory analyses. But, this method is not adequate for indicating lime needs of soils regardless of extractable (soluble) Al present.Abstract:
Studies were conducted to determine why certain soil test methods fail to indicate the actual lime requirement in many Ohio soils. Samples of 14 soils from various areas of the State were collected for study. The soils were incubated with various rates of applied CaCO₃ to determine actual lime requirement of each soil. Attempts were made to find laboratory methods that would accurately indicate the lime requirement of each. For these soils the Woodruff method had indicated only about half the amount of the actual lime requirement. The Mehlich triethanolamine method indicated accurately the amount of lime required for the unlimed acid soils. However, this method indicated too high a lime requirement on soils partially limed. Subtraction of the acidity measured above pH 6.8 by the triethanolamine method and then addition of the extractable Al, gave a very good indication of lime needs on all soils not limed above neutrality regardless of lime additions. Addition of extractable Al to total bases and triethanolamine-measured acidity to pH 6.8 gave nearly constant cation-exchange capacities of soils regardless of lime additions. These studies have led to development of an improved soil test buffer method for rapid routine laboratory analyses. It appears to be adequate for indicating lime needs of soils regardless of extractable (soluble) Al present.read more
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BookDOI
Soil Sampling and Methods of Analysis
M.R. Carter,Edward G. Gregorich +1 more
TL;DR: In this paper, the authors present a set of methods for soil sampling and analysis, such as: N.H.Hendershot, H.M.Hettiarachchi, C.C.De Freitas Arbuscular Mycorrhiza, Y.K.Soon and W.J.
Book
Environmental Soil and Water Chemistry: Principles and Applications
TL;DR: In this article, the chemistry and management of salt-affected Soils and Brackish Waters are discussed, and a number of technologies are described. But none of them are suitable for use in the field of water treatment.
Book ChapterDOI
Lime and Phosphate in the Soil-Plant System
TL;DR: In this article, the effects of lime and phosphate applications on the soil-plant system are discussed and an understanding of such effects is essential for those involved in the development and management of acid, phosphate-fixing soils.
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