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| DOI: | 10.2134/jeq1979.00472425000800040017x |
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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/pdfs/8/4/JEQ0080040525
Last checked: 12/08/2016
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https://dl.sciencesocieties.org/publications/jeq/articles/8/4/JEQ0080040525
Last checked: 12/08/2016
Requires: PDF Reader
Notes: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Mitchell, W. W.;
Loynachan, T. E.;
McKendrick, J. D. |
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| Author Affiliation: | Mitchell: Professor; Mckendrick: Associate Professor, Dep. of Agronomy, Alaska Agric. Exp. Stn.; Loynachan: Assistant Professor, Iowa State Univ., Ames, IA |
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| Title: | Effects of tillage and fertilization of persistence on crude oil contamination in an Alaskan soil |
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| Source: | Journal of Environmental Quality. Vol. 8, No. 4, October-December 1979, p. 525-532. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| # of Pages: | 8 |
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| Related Web URL: | https://dl.sciencesocieties.org/publications/jeq/abstracts/8/4/JEQ0080040525
Last checked: 05/04/2017
Notes: Abstract only |
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| Keywords: | TIC Keywords: Bromus inermis; Fertilization; Persistence; Petroleum spills; Plant response; Tillage
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| Geographic Terms: | Alaska |
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| Abstract/Contents: | "The persistence of Prudhoe Bay crude oil was evaluated with cereal plantings over a 4-year period on field plots at Palmer, Alaska, oiled at 10 and 20 liters/m2 with tillage and fertilization as treatments. Following the field study oil was removed for greenhouse evaluations and analyses. Tilling aided water infiltration on the oiled plots in the field. Oiled plots without tillage or fertilization produced negligible growth during the first three growing seasons and very poor growth (<10% coverage) in the fourth year. In the first year, only the 10-liter tilled plots provided tangible growth, about one-tenth that of the unoiled plots. The 20-liter plots required both treatments to produce growth in the second and third year, while either treatment sufficed for the 10-liter plots, with growth still much reduced from the controls. Oil decomposition was sufficiently advanced in the fourth year to permit over 75% coverage on the tilled 10-liter plots, about 50% coverage on the tilled and fertilized 20-liter plots, about 25 to 40% coverage on the tilled, unfertilized 20-liter and on the fertilized, untilled 10-liter plots. Annual weeds were mostly unsuccessful in invading the oiled plots until the fourth year. Greenhouse studies with oiled, fertilized soil removed from the field in the fourth year showed that tillage benefited growth of barley and bromegrass in the surface layer but was detrimental to growth in the 10- to 12- cm layer. Laboratory analyses corroborated the greater contamination of the deeper layers from the tilled plots. Field moisture levels were highly negatively correlated with residual oil contents, thus emphasizing the droughty effects of oil contamination. Residual oil contents of 13.5% completely inhibited germination of barley and brome, while levels under 7.5% allowed germination but reduced shoot heights. Decreasing levels of residual oil with increasing depth of tilled soil did not result in significantly greater plant growth. Beneficial degradation of oil may be retraded at depths in soil, thus prolonging its phytotoxic effects. Tillage is best delayed to allow volatilization and some weathering to occur." |
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| Language: | English |
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| References: | 27 |
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| Note: | Pictures, b/w
Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mitchell, W. W., T. E. Loynachan, and J. D. McKendrick. 1979. Effects of tillage and fertilization of persistence on crude oil contamination in an Alaskan soil. J. Environ. Qual. 8(4):p. 525-532. |
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| DOI: 10.2134/jeq1979.00472425000800040017x |
| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/pdfs/8/4/JEQ0080040525
Last checked: 12/08/2016
Requires: PDF Reader
Notes: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/jeq/articles/8/4/JEQ0080040525
Last checked: 12/08/2016
Requires: PDF Reader
Notes: Item is within a limited-access website |
| 
MSU catalog number: S 900 .J6 |
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