Item request has been placed!
×
Item request cannot be made.
×
Processing Request
Improved Structural Stability of an Acidic Hardsetting Soil Attributable to Lime Application.
Item request has been placed!
×
Item request cannot be made.
×
Processing Request
- Additional Information
- Subject Terms:
- Abstract:
Lime [calcium carbonate (CaCO3)] has been used for acid soil amelioration of acid soils in Australia and elsewhere, but its effects on soil physical properties are not clear. Mechanisms responsible for the beneficial changes in the soil physical and structural properties of an acidic hardsetting soil in southern NSW, Australia, as a result of lime application were investigated. Changes in water-stable aggregation, a mechanical property, were related to changes in physicochemical properties, and soil organic carbon forms as a result of liming. The improved soil structure due to liming can be explained in terms of reduction in SAR (Sodium absorption ratio) and increase in EC (Electrical conductivity) (both lead to less dispersion) as well as increases in labile carbon (less slaking). The combined effects of reduced dispersion and slaking were responsible for the reduced bulk density and tensile strength of the hardsetting surface soil. These beneficial effects of liming on soil structural and physical properties were detectable 4 years after but not 18 years after lime application. [ABSTRACT FROM AUTHOR]
- Abstract:
Copyright of Communications in Soil Science & Plant Analysis is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
No Comments.