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| Web URL(s): | https://www.dl.sciencesocieties.org/publications/jeq/pdfs/9/1/JEQ0090010081
Last checked: 11/03/2016
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| Publication Type:
| Refereed |
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| Author(s): | Olness, Alan;
Rhoades, E. D.;
Smith, S. J.;
Menzel, R. G. |
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| Author Affiliation: | Olness: Soil Scientist, USDA-SEA-AR, Morris, Minnesota; Rhoades: Agricultural Engineer; Smith: Soil Scientist; and Menzel: Director, USDA-SEA-AR, Durant, Oklahoma |
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| Title: | Fertiliser nutrient losses from rangeland watersheds in central Oklahoma |
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| Section: | Technical reports
Other records with the "Technical reports" Section
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| Source: | Journal of Environmental Quality. Vol. 9, No. 1, January-March 1980, p. 81-86. |
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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: | 6 |
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| Related Web URL: | https://www.dl.sciencesocieties.org/publications/jeq/abstracts/7/2/JEQ0070020193
Last checked: 11/03/2016
Notes: Abstract only |
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| Keywords: | TIC Keywords: Fertilizers; Watersheds; Nitrogen; Phosphorus; Surface runoff; Leaching; Forage; Yield response; Nutrient uptake
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| Geographic Terms: | Oklahoma |
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| Abstract/Contents: | "Four native grassland watersheds were monitored for nitrogen and phosphorus nutrient losses in surface runoff. The watersheds, paired in surface hydrology and grazing management, were 8 to 11 ha in area with 3% slopes. One watershed of each pair was fertilized with 85 kg N/ha (as NH4+-N) and 75 kg P/ha surface broadcast. Ten 3.66 by 5.49 m (20 m2) areas within each watershed were covered with plastic sheets during fertilization to provide unfertilized check plots. Fertilizer losses in surface runoff over the first year were 5% or less of the amounts applied. Soluble NH4+-N concentrations in surface runoff increased significantly only during the first month after fertilizer application. Soluble P concentrations increased sharply after fertilization and remained relatively high even after 12 mo. Forage yields were increased 50 to 100% on fertilized areas. Increases in nutrient uptake of fertilized vegetation the first year equaled 17 to 25.5 kg/ha and 7.5 to 11 kg/ha of the added N and P, respectively." |
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| Language: | English |
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| References: | 14 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Olness, A., E. D. Rhoades, S. J. Smith, and R. G. Menzel. 1980. Fertiliser nutrient losses from rangeland watersheds in central Oklahoma. J. Environ. Qual. 9(1):p. 81-86. |
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| Web URL(s):
https://www.dl.sciencesocieties.org/publications/jeq/pdfs/9/1/JEQ0090010081
Last checked: 11/03/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 900 .J6 |
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