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Factors Contributing to the Genesis of Soil Micro‐Structure
Author(s) -
Baver L. D.
Publication year - 1935
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/sssaj1935.036159950b1620010018x
Subject(s) - citation , computer science , library science , information retrieval
The term "soil micro-structure" refers to the secondary particle formation within the soil. The building up of secondary structural units from the finer mechanical separates in the soil should be related to (1) the percentage of the finer fractions present which may be aggregated and (2) the amount and effectiveness of the aggregating constituents within the soil. The latter includes such granulating substances as organic matter, divalent cations (lime), iron and aluminum compounds and other similar material. A study has been made of 77 different soils throughout the United States, exclusive of lateritic soils, in which the aggregation, clay content, organic matter present, and the exchangeable calcium have been determined and correlated with each other. This study has suggested several important factors that play significant roles in the formation of secondary particles.