A Study of the Granulation of Soils (Classic Reprint) - Hardcover

Robert Clinton Lloyd

9780265901540: A Study of the Granulation of Soils (Classic Reprint)

Hardcover

ISBN 10: 0265901545 ISBN 13: 9780265901540

Publisher: Forgotten Books, 2018

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Soil granulation under frost: how tiny aggregates form and break apart

This book explains how certain soils develop distinct granules and how frost, moisture, and soil chemistry influence that process. It blends field observations with lab experiments to show why some soils granulate readily while others resist.

The study centers on Yazoo clay and a silt loam, examined alongside field examples from sandy loams to heavy clays. It traces how granulation appears as soils dry, rewet, and are repeatedly frozen and thawed. The work also compares surface and subsoil behavior, noting that surface granules tend to be more angular and harder to break than those deeper down. It further explores how leaching salts and humus content alter a soil’s tendency to form granules, and how recovered humus can restore granulation in some cases.
What you’ll experience or learn

How field and laboratory observations identify different soil types that show granulation.
The impact of repeated freezing and drying on soil particles and the development of granules.
Differences between surface soil, subsurface, and subsoil granulation, including shapes and fragility.
The role of humus, soluble salts, and chemical treatments in promoting or hindering granulation.

Ideal for readers of soil science, agricultural history, and those curious about how soils behave under natural and controlled conditions.

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