General Agricultural runoff Feedlot Sewage Industrial Reference (source undetermined) (fertilizer and silt) runoff effluent effluent
Boye Petersen 1917, cited by Olsen 1950 x x Pirnie 1935 x Van Donselarr et al. 1961 x Westlake 1961 x Hunt 1963 x Spence 1964 x Volker and Smith 1965 x x Kaul and Zutshi 1967 x Lind and Cottam 1969 x Peltier and Welch 1969 x Kohler et al. 1971 x Stuckey 1971 x x Perkins and Abbott 1972 x Neel et al. 1973 x Jupp et al. 1974 x Haslam et al. 1975 x Pieczyuska et al. 1975 x x Wilson et al. 1975 x Andersen 1976 x Krausch 1976 x Pieczynska and Ozimek 1976 x x Sahai and Sinha 1976 x Schiemer and Prosser 1976 x Holmes and Whitton 1977 x x Wiegleb 1978 x Ho 1979 x x Jupp and Spence 1977a x x x Fetter et al. 1978 x x x Haslam 1978 x Hejny and Husak 1978 x Leah et al. 1978 x Peterka and Hanson 1978 x Pip 1978 x Ozimek 1978 x Carpenter 1979 x Dunst and Nichols 1979 x Lachavanne 1979 x Vass 1980 x Janauer 1981 x Merry et al. 1981 x Vermsak et al. 1981 x Shubert 1982 x Vander Zouwen 1982 x x Ozimek and Kowalczewski 1984 x Filbin and Barko 1985 x Madsen and Adams 1985 x x Peverly 1985 x Blake et al. 1986 x Madsen 1986 x x Stewart and Davies 1986 x x x Penuelas and Sabater 1987 x x Madsen et al. 1988 x
Reference General Agricultural runoff Feedlot Sewage Industrial (source undetermined) (fertilizer and silt) runoff effluent effluent