Triclopyr persistence in western Oregon hill pastures
| Autor: | Marvin L. Montgomery, Logan A. Norris, L E. Warren |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Watershed
Health Toxicology and Mutagenesis Rain Triclopyr Forage Fresh Water Silt Toxicology Poaceae chemistry.chemical_compound Oregon Soil Environmental protection Grazing Organic matter chemistry.chemical_classification Hydrology Herbicides Pesticide Residues General Medicine Pollution Glycolates chemistry Loam Soil water Environmental science |
| Zdroj: | Bulletin of environmental contamination and toxicology. 39(1) |
| ISSN: | 0007-4861 |
| Popis: | This study was conducted at two western Oregon sites: a hill-pasture near Coquille (Site I) which could be managed for either timber or forage but which was being used for grazing at the time of the study, and (2) a hill-pasture near Corvallis (Site II) suited for grazing. Site I is near the Oregon coast. Site II is in the Willamette Valley. At Site I, triclopyr (3.4 kg acid equivalent/ha with 1.2 L polyglycol surfactant and enough water to give 93.5 L/ha total solution) was applied as the isopropylamine salt on May 24 by helicopter to 2.5-ha which included all of a 1.74-ha watershed. The site averages 34% slope and has Etelka (1 to 2% organic matter) and Whobrei (2 to 5% organic matter) silt clay loam soils. There was no buffer zone along the intermittent stream, which is quite small and does not flow during summer. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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