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Mechanical impedance to root growth: a review of experimental techniques and root growth responses
Abstract
SUMMARY: Mechanical impedance to root growth is one of the most important factors determining root elongation and proliferation within a soil profile. Penetrometers overestimate resistance to root growth in soil by a factor of between two and eight and, although they remain the most convenient method for predicting root resistance, careful interpretation of results and choice of penetrometer design are essential if improved estimates of soil resistance to root elongation are to be obtained. Resistance to root growth through pressurized cells containing ballotini considerably exceeds the confining pressure applied externally to these cells. Results from this work are reappraised. Existing models of soil penetration by roots and penetrometers are reviewed together with the factors influencing penetration resistance. The interpretation of results from mechanical impedance experiments is examined in some detail and root responses, including possible mechanisms of response, are discussed.
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Citations
Cited by
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Lehmann, J., Rillig, M. C., Thies, J., Masiello, C. A., Hockaday, W. C., & Crowley, D. (2011) · Soil Biology and Biochemistry · doi:10.1016/j.soilbio.2011.04.022 · Cited by 5,074
Quantification of compaction effects on soil physical properties and crop growth
Lipiec, J., & Hatano, R. (2003) · Geoderma · doi:10.1016/s0016-7061(03)00097-1 · Cited by 551
Grazing effects on soil physical properties and the consequences for pastures: a review
Greenwood, K. L., & McKenzie, B. M. (2001) · Australian Journal of Experimental Agriculture · doi:10.1071/ea00102 · Cited by 533
Root biology and genetic improvement for drought avoidance in rice
Gowda, V. R. P., Henry, A., Yamauchi, A., Shashidhar, H. E., & Serraj, R. (2011) · Field Crops Research · doi:10.1016/j.fcr.2011.03.001 · Cited by 465
Soil structure and plant growth: Impact of bulk density and biopores
Stirzaker, R. J., Passioura, J. B., & Wilms, Y. (1996) · Plant and Soil · doi:10.1007/bf02257571 · Cited by 309
Metadata
- Authors
- BENGOUGH, A. G., & MULLINS, C. E.
- Venue
- Journal of Soil Science
- Publisher
- Wiley
- Published
- 1990-09
- Volume
- 41
- Issue
- 3
- Pages
- 341-358
- ISSN
- 0022-4588 (ISSN-L)
- OpenAlex
- W2137214815
- Cited by
- 631
- References
- 0
- FWCI
- 13.74
- Type
- journal article
- Language
- en
- Open access
- closed
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- BENGOUGH, A. G., & MULLINS, C. E. (1990). Mechanical impedance to root growth: a review of experimental techniques and root growth responses. Journal of Soil Science. https://doi.org/10.1111/j.1365-2389.1990.tb00070.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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