Fate of Nitrogen Applied to Turfgrass-Covered Soil Columns
| Autor: | S.K. Starrett, T. Al Austin, Nick E. Christians |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Hydrology
Poa pratensis Irrigation biology Macropore chemistry.chemical_element biology.organism_classification Agricultural and Biological Sciences (miscellaneous) Nitrogen Hydrology (agriculture) chemistry Environmental science Leachate Leaching (agriculture) Water pollution Water Science and Technology Civil and Structural Engineering |
| Zdroj: | Journal of Irrigation and Drainage Engineering. 121:390-395 |
| ISSN: | 1943-4774 0733-9437 |
| Popis: | Current public concern for the environment has focused on the environmental effects of chemical applications to turfgrass areas. There is little research on the environmental effects of nitrogen (N) applied to turfgrasses. Our objectives were to investigate the hydrology of 50 cm of undisturbed soil columns with a Kentucky bluegrass turf and intact macropores under a heavy (four 2.54 cm applications) and a light irrigation regime (sixteen 0.64 cm applications), and to measure the fate of N, using 15 N as a tracer, when applied to an undisturbed soil column. Mean leachate values for columns under the heavy irrigation regime totaled about six times the amount collected from columns under the light irrigation regime. We found that the heavy irrigation increased N, which leached through the 50 cm of undisturbed soil columns by 30 times and decreased the volatilization of liquid urea compared with columns under the light irrigation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|