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DOI: | 10.2134/jeq1980.00472425000900010019x |
Publication Type: | Refereed |
Author(s): | Olness, Alan; Rhoades, E. D.; Smith, S. J.; Menzel, R. G. |
Author Affiliation: | Olness: Soil Scientist, USDA-SEA-AR, Morris, Minnesota; Rhoades: Agricultural Engineer; Smith: Soil Scientist; and Menzel: Director, USDA-SEA-AR, Durant, Oklahoma |
Title: | Fertiliser nutrient losses from rangeland watersheds in central Oklahoma |
Section: | Technical reports Other records with the "Technical reports" Section |
Source: | Journal of Environmental Quality. Vol. 9, No. 1, January-March 1980, p. 81-86. |
Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
# of Pages: | 6 |
Related Web URL: | https://www.dl.sciencesocieties.org/publications/jeq/abstracts/7/2/JEQ0070020193 Last checked: 11/03/2016 Notes: Abstract only |
Keywords: | TIC Keywords: Fertilizers; Watersheds; Nitrogen; Phosphorus; Surface runoff; Leaching; Forage; Yield response; Nutrient uptake |
Geographic Terms: | Oklahoma |
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." |
Language: | English |
References: | 14 |
Note: | Tables Graphs |
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. |
Fastlink to access this record outside TGIF: | http://tic.msu.edu/tgif/flink/RECNO/110494 |
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DOI: 10.2134/jeq1980.00472425000900010019x | |
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MSU catalog number: | S 900 .J6 |
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