Click on “Download PDF” for the PDF version or on the title for the HTML version.

If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.

Development and Evaluation of a Sensor to Continuously Measure Air Permeability of Soil

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Paper number  031072,  2003 ASAE Annual Meeting . (doi: 10.13031/2013.14926) @2003
Authors:   B. K. Koostra, T. S. Stombaugh
Keywords:   Soil compaction, air permeability, spatial management

A factor that influences the water supplying capacity of soil is compaction. The ability to delineate compacted areas of a field is a factor for effective spatial management of a field for agriculture production. A potential method for determining soil compaction is measurement of the ability of a fluid to pass through the soil. A continuously measuring soil permeability sensor has been developed and constructed to provide relative compaction measurements for use in delineating spatial management zones within a field. The design concept involves "injecting" an air stream into the soil and measuring resistance pressure while maintaining a constant flow. Components of the sensor include an air supply, a mass flow control valve, a pressure transducer, a shank/probe, and data acquisition hardware and software. Initial data obtained with the air permeability sensor and correlations with the traditional soil compaction measurements will be presented.

(Download PDF)    (Export to EndNotes)