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Soil Aggregates — Formation and Stability
1990The first requirement for the efficient production of most agricultural crops is that sufficient water derived from rainfall or irrigation is accepted by the soil. Otherwise, water is not only wasted, but erosion may result. The second requirement for crops other than rice is that waterlogging does not occur, and that soil aggregates at field capacity ...
W. W. Emerson, D. J. Greenland
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The role of microorganisms in the stabilization of soil aggregates
Soil Biology and Biochemistry, 1971Abstract The maintenance of water-stability of soil aggregates bound by different chemicalbinding agents produced in situ by pure cultures of microorganisms and by an indigenous soil microflora was assessed by wet-sieve analysis. Seven fungi, six streptomycetes, and five bacteria produced binding materials in artificial aggregates of Miami silt ...
R.B. Aspiras +3 more
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Effect of aggregate stability on soil compaction
Soil and Tillage Research, 1991Abstract Investigations of three differently textured and structured soils showed that soil compaction is a function of texture, structure, matric water potential and type and intensity of loading. Time-dependent consolidation and shear experiments revealed that fine-textured soil is more compressible than heavier soil.
Baumgartl, Th., Horn, R.
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Stability of structural aggregates of dry soil
Australian Journal of Agricultural Research, 1950The stability of natural aggregates of dry soil has been examined by a drop-shatter method similar to that used in coal technology, The median size was determined after dropping from heights of 30, 60, 120, and 240 cm. The dropping procedure subdivides aggregates along surfaces of weakness into smaller natural units.
TJ Marshall, JP Quirk
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Emerging threats to the stability of soil aggregates
2021Soil aggregates are clusters of soil particles, supporting the soil physical structure. Soil aggregation is key to the functions of ecosystem, including aeration, water infiltration and storage, nutrient cycling, and the pore system. This doctoral work investigates the effects of threats on the stability of soil aggregates.
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The Influence of Soil Aggregate Stabilizers on the Biological Activity of Soils
Soil Science Society of America Journal, 1954Abstract The influence of three synthetic polyelectrolytes, hydrolyzed polyacrylonitrile (HPAN), modified vinyl acetate maleic acid compound (VAMA), and a new polymer 212 on the biological activity in six agricultural Arizona soils and quartz sand was investigated.
W. H. Fuller, Catherine Gairaud
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Stabilizing Soil Aggregates with Phosphoric Acid
Soil Science Society of America Journal, 1976Abstract Four P‐containing fertilizer materials (H 3 PO 4 , liquid and dry ammonium polyphosphate, and triple superphosphate) were compared for ability to increase water stability of aggregates in an acid soil.
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Studies on aggregate stability. I. Re‐formation of soil aggregates
Journal of Soil Science, 1986SUMMARY When natural soil aggregates were destroyed by crushing, techniques traditionally used for re‐forming aggregates, such as wetting/drying and freezing/thawing cycles, did not produce any stable re‐formed aggregates. Incubation without amendment, was similarly unsuccessful, whereas incubation with glucose amendment did produce ...
K. CHANEY, R. S. SWIFT
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Soil aggregation: Formation, stabilization, and impacts of soil management
2023Soil structure has as its main component the soil aggregate, which is composed primarily of particles of sand, silt, and clay, bound together by inorganic and organic materials at various scales. However, the concepts and models explaining how soil aggregates form and stabilize have evolved over the years.
Cunha Almeida Leite, Maurício +4 more
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