A dynamic cone penetrometer for measuring soil penetration resistance
Recognition of the importance of soil compaction is increasing, but instrument cost, measurement repeatability, and data interpretation limit its measurement on agricultural and rangelands. The dynamic penetrometer described here follows American Society of Agricutlural Engineers standards, but repl...
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Published in | Soil Science Society of America journal Vol. 66; no. 4; pp. 1320 - 1324 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Madison
Soil Science Society
01.07.2002
Soil Science Society of America American Society of Agronomy |
Subjects | |
Online Access | Get full text |
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Summary: | Recognition of the importance of soil compaction is increasing, but instrument cost, measurement repeatability, and data interpretation limit its measurement on agricultural and rangelands. The dynamic penetrometer described here follows American Society of Agricutlural Engineers standards, but replaces the proving ring with a strike plate, a shaft extension, and a sliding hammer. The penetrometer cone is pushed into the soil by successive hammer blows. Penetration resistance is calculated as the work by the soil needed to stop cone movement divided by the penetration distance. The work by the soil is defined as the kinetic energy of the hammer when it impacts the strike plate. Construction cost is approximately $100 to $150. The standard drop height and hammer mass ensure measurements are consistent between operators. |
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Bibliography: | Joint contribution from the USDA‐ARS Jornada Experimental Range, and the New Mexico Agric. Exp. Stn. ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0361-5995 1435-0661 |
DOI: | 10.2136/sssaj2002.1320 |