Jump to Main Content
- Vadas, Peter A.; Jokela, William E.; Franklin, Dory H.; Endale, Dinku M.
- Journal of the American Water Resources Association 2011 v.47 no.4 pp. 877
- agricultural runoff, etc ; rain; phosphorus; losses from soil; application timing; animal manures; adsorption; simulation models; water pollution; Show all 9 Subjects
- ... A significant pathway of nonpoint source, agricultural phosphorus (P) transport is surface runoff, to which surface-applied manure can contribute. Increasing the time between manure application and the first rain-runoff event is proposed as a practice to reduce runoff P loss. Few studies have investigated this aspect of manure P loss in runoff, with mixed results. Studies observing a decrease in r ...
- Lerch, R.N.; Sadler, E.J; Sudduth, K.A.; Baffaut, C.; Kitchen, N.R.
- Journal of the American Water Resources Association 2011 v.47 no.2 pp. 209
- agricultural runoff, etc ; herbicides; atrazine; water pollution; chemical concentration; pollution load; watersheds; ecosystems; agricultural land; Zea mays; Sorghum (Poaceae); regression analysis; temporal variation; ecotoxicology; time series analysis; Missouri; Show all 16 Subjects
- ... Atrazine continues to be the herbicide of greatest concern relative to contamination of surface waters in the United States (U.S.). The objectives of this study were to analyze trends in atrazine concentration and load in Goodwater Creek Experimental Watershed (GCEW) from 1992 to 2006, and to conduct a retrospective assessment of the potential aquatic ecosystem impacts caused by atrazine contamina ...