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New Methods in Soil Microscopy
Author(s) -
Johnston J. R.
Publication year - 1938
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1938.036159950002000c0002x
Subject(s) - citation , library science , state (computer science) , soil water , sociology , computer science , environmental science , soil science , algorithm
The microscopic investigation of undisturbed soil in the field is the basis of micropedological research. For this purpose the soil microscope designed by Kubiena (l) or another suitable field microscope which is furnished with incident light equipment is used. Samples of soil are taken for further investigations in the laboratory as well as for the making of the different types of preparations used in soil microscopy, such as thin sections and debris preparations (4). These samples must be undisturbed and their orientation marked, i.e., their position in the profile designated and which is the top and the bottom side of the sample taken. An understanding of the component movements pictured in these arrangements can be obtained only by oriented specimens. An easy way to obtain undisturbed, oriented soil samples is with cylinders. The cylinders can be manufactured for approximately four cents apiece from No. 28 galvanized