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DOI: | 10.1016/S0038-0717(96)00176-9 |
Web URL(s): | http://www.sciencedirect.com/science/article/pii/S0038071796001769 Last checked: 07/06/2011 Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Hirth, J. R.;
McKenzie, B. M.;
Tisdall, J. M. |
Author Affiliation: | Hirth and McKenzie: School of Agriculture, La Trobe University, Bundoora, Victoria, Australia; Hirth: Rutherglen Research Institute, Rutherglen, Victoria, Australia; Tisdall: Institute of Sustainable Irrigated Agriculture, Tatura, Victoria, Australia |
Title: | Do the roots of perennial ryegrass elongate to biopores filled with the casts of endogeic earthworms? |
Source: | Soil Biology & Biochemistry. Vol. 29, No. 3/4, March/April 1997, p. 529-531. |
Publishing Information: | Pergamon |
# of Pages: | 3 |
Keywords: | TIC Keywords: Aggregates; Earthworm castings; Lolium perenne; Nutrient availability; Root analysis; Root elongation; Soil pore system; Subsoil
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Abstract/Contents: | "Earthworm casts deposited in burrows may stimulate plant roots to elongate preferentially to those burrows. A model experiment was conducted with an artificial, impenetrable subsoil in which vertical holes were left empty, filled with earthworm casts, or filled with fertile soil. The roots of perennial ryegrass had elongated down through an aggregate seedbed and were deflected horizontally when they reached the artificial subsoil. After six days, approximately 6% of the roots that were deflected sideways, met with holes in the subsoil. However, the number of roots that met with holes filled with either casts, or soil, was not significantly different from the number of roots that met with empty holes. Under the conditions of our model system, there was no evidence that ryegrass roots elongated preferentially to and entered holes filled with earthworm casts." |
Language: | English |
References: | 7 |
Note: | Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Hirth, J. R., B. M. McKenzie, and J. M. Tisdall. 1997. Do the roots of perennial ryegrass elongate to biopores filled with the casts of endogeic earthworms?. Soil Biol. Biochem. 29(3/4):p. 529-531. |
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| DOI: 10.1016/S0038-0717(96)00176-9 |
| Web URL(s): http://www.sciencedirect.com/science/article/pii/S0038071796001769 Last checked: 07/06/2011 Access conditions: Item is within a limited-access website |
| MSU catalog number: b2217194 |
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