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| DOI: | 10.21273/HORTTECH.12.4.646 |
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| Web URL(s): | https://journals.ashs.org/horttech/view/journals/horttech/12/4/article-p646.xml
Last checked: 11/15/2019
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Sloan, John J.;
George, Steve W.;
Mackay, Wayne A.;
Colbaugh, Phil;
Feagley, Sam |
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| Author Affiliation: | Sloan: Assistant Professor, Texas Agricultural Experiment Station, Research and Extension Center, Texas A & M University, Dallas, Texas; George and Feagley: Professor, Texas Cooperative Extension, Research and Extension Center, Texas A & M University, Dallas, Texas; Mackay and Colbaugh: Associate Professor, Texas Agricultural Experiment Station, Research and Extension Center, Texas A & M University, Dallas, Texas |
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| Title: | The suitability of expanded shale as an amendment for clay soils |
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| Section: | Research reports
Other records with the "Research reports" Section
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| Source: | HortTechnology. Vol. 12, No. 4, October-December 2002, p. 646-651. |
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| Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Soil moisture; Aerification; Soil amendments; Nitrogen; Expanded shale; Clay soils
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| Abstract/Contents: | "Excessive soil moisture in clay soils can cause poor aeration and adversely affect plant growth. Small [1 to 3 mm (0.039 to 0.118 inches)] and large [3 to 6 mm (0.118 to 0.354 inches)] diameter expanded shales (ExSh), quartz sand, spahagnum peatmoss (SPM), and cottonseed hulls (CH) were evaluated as soil amendments for Austin silty clay soil. A 3-inch (7.6-cm) layer of each amendment was incorporated to a depth of 6 inches (15.2 cm), resulting in a 1:1 mixture by volume. Pansies (Viola x wittrockiana 'Crown Azure Blue') were grown from Decem ber to June, followed by scaevola (Scaevola aemula 'New Wonder') from June to November for two growing seasons. Foliage quality and extent of flowering were evaluated biweekly. Pansy root weights and above-ground biomass were quantified at the end of each growing season. None of the amendments significantly affected pansy foliage quality or the number of blooms per plant. Small diameter ExSh and SPM decreased pansy nitrogen content the first year after application, but not the second. During the first growing season, when soils were frequently saturated due to excessive rainfall, pansy root weights were significantly higher in soils amended with the small and large diameter ExSh. Large diameter ExSh treatments significantly increased the survival rate of transplanted scaevola plants and also the quality of foliage and percent blossom coverage during both growing seasons. Cottonseed hulls also increased scaevola survival for both growing seasons, but did not consistently improve scaevola foliage quality or bloom coverage. Of the five amendements tested, large diameter ExSh consistently improved overall plant performance more than the other amendments." |
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| Language: | English |
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| References: | 29 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Sloan, J. J., S. W. George, W. A. Mackay, P. Colbaugh, and S. Feagley. 2002. The suitability of expanded shale as an amendment for clay soils. HortTechnology. 12(4):p. 646-651. |
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| DOI: 10.21273/HORTTECH.12.4.646 |
| Web URL(s):
https://journals.ashs.org/horttech/view/journals/horttech/12/4/article-p646.xml
Last checked: 11/15/2019
Requires: PDF Reader |
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MSU catalog number: SB 317.5 .H6 |
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