Cone penetration resistance equation as a function of the clay ratio, soil moisture content and specific weight

Elbanna, E.; Witney, B.D.

doi:10.1016/0022-4898(87)90058-9

Cited by 51 publications

(39 citation statements)

References 11 publications

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“…from 0 to −1 kPa) PR values are lowest, but increase with increasing clay content. This increase can be attributed to an increasing contribution of soil-metal adhesion forces to PR (Elbanna and Witney, 1987). At low water contents the soil-metal frictional component of the resistance becomes more prominent.…”

Section: Effects Of Soil Texture On Penetration Resistancementioning

confidence: 91%

Modeling and correction of soil penetration resistance for varying soil water content

et al. 2011

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Section: Effects Of Soil Texture On Penetration Resistancementioning

confidence: 91%

Modeling and correction of soil penetration resistance for varying soil water content

et al. 2011

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“…These functions largely depend on the soil textural class, especially on clay content. These factors also affected the relationships if the measurements were conducted in non-agricultural soils (Elbanna & Witney, 1987). To fully analyse undisturbed soil samples, additional soil parameters must also be incorporated into the relationship (Horn, 1984).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the soil penetration resistance along a transect to determine the loosening depth

et al. 2006

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The objective of this study was to evaluate the distribution of soil strength (measured as cone index, CI) along a 600 m transect and to determine the soil loosening depth necessary to eliminate zones with soil strengths exceeding a threshold value down to a depth of 0.6 m. The transect was located at a site in a glacial drift area which was characterised by sandy deposits overlying boulder clay. A tractor-mounted multi-penetrometer array consisting of four hydraulically driven single vertical penetrometers was used to determine CI at 1-m sampling intervals as a measure of penetration resistance. The spatial fluctuation of the CI readings in general and that of repeatedly averaged readings along the transect was examined. Furthermore, the relationships between the penetration resistance of several soil layers and the relationships between the CI of single penetrometers were identified. Averaged CI values over 5-m intervals were used to determine the depth of soil loosening required. By using various data sub-sets based on the averaged data of the four array mounted penetrometers and simulating several different sampling intervals, treatment intervals and threshold values of soil strength, a sampling interval of about 10 m proved to be sufficiently accurate to determine the loosening depth required.

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“…Numerous researchers (Canarache, 1991;Lowery and Schuler, 1994;Ngunjuri and Siemens, 1995) have documented the increases in CI that occur with increases in compaction and BD. In addition to compaction, the major factors affecting CI include WC and clay content of the soil (Elbanna and Witney, 1987). For example, CI has been found to increase with decreasing soil water potential (Lipiec et al, 2002).…”

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confidence: 98%

Soil compaction varies by crop management system over a claypan soil landscape

Jung¹,

Kitchen

Sudduth

et al. 2010

Soil and Tillage Research

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Cone penetration resistance equation as a function of the clay ratio, soil moisture content and specific weight

Cited by 51 publications

References 11 publications

Modeling and correction of soil penetration resistance for varying soil water content

Modeling and correction of soil penetration resistance for varying soil water content

Evaluation of the soil penetration resistance along a transect to determine the loosening depth

Soil compaction varies by crop management system over a claypan soil landscape

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