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- W651731312 abstract "This chapter describes how chemical analysis is one of the most important tools for soil and water characterization. It describes how soil testing began in the nineteenth century and was primarily used for soil classification and fertilizer recommendations. Recently, the purpose of soil testing has been extended beyond improving crop production in order to encompass environmental evaluation. Before Daubeny proposed the concept of active (plant-available) and dormant (plant-unavailable or slowly available) forms of plant nutrients in soils in 1845, only total nutrient analysis was conducted. In the century and a half since that time, many chemical solutions (“extractants”) have been tested and used for the determination of plant-available nutrients in soils. In addition, emphasis has shifted from the simple determination of total concentrations to determining the various fractions of the forms of each element in the soil. This chapter describes how, even though several hundred methods for soil and water analysis are currently available, many new analytical methods are being developed because of the fact that analytical technology is continually improving. Often the selection of an analytical method out of the plethora of new and existing methods is difficult, but crucially important, since the use of an improper method will lead to false determinations. The objective of this chapter is to aid researchers and to understand significant differences between various methods and to select the appropriate analytical methods for soil and water characterization." @default.
- W651731312 created "2016-06-24" @default.
- W651731312 creator A5016970591 @default.
- W651731312 creator A5021384149 @default.
- W651731312 creator A5041536980 @default.
- W651731312 date "2004-12-28" @default.
- W651731312 modified "2023-09-27" @default.
- W651731312 title "Chemical Methods for Soil and Water Characterization" @default.
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- W651731312 doi "https://doi.org/10.1201/9781420032086.ch14" @default.
- W651731312 hasPublicationYear "2004" @default.
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