1978•Journal of the Indian Society of Soil ScienceOpen access

Changes in Bulk-Density of Soils Due to Changes in Moisture Content

K. Bhaskara Rao, N. Ramavatharam, S. S. Prihar, Quaser

Abstract

In studies concerning the effect of tillage, compaction and amendments on bulk-density of soils, density changes are generally attributed to direct effect of treatments. Hut in swelling soils, considerable changes in bulk-density occur due to changes in soil-moisture content. Present studies with black soils have shown that for precise comparison between treatments, bulk-density must be corrected to a chosen reference water content. Regression equations relating bulk-density change with soil-moisture content were obtained. Coated clod method was found to be more sensitive than core method for detecting bulk-density changes associated with soil-moisture content.

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Key concepts: Water content, Bulk density, Soil water, Compaction, Soil science, Tillage, Moisture, Environmental science