P.N. Smith

The Influence of Manure Slurry Irrigation on the Survival of Fecal Organisms in Scranton Fine Sand

Frank B. Dazzo, P.N. Smith, D. H. Hubbell · Journal of Environmental Quality · 1973 · 37 citations

Agriculture, Infectious Diseases, Microbiology +11

The effects of crop husbandry and nitrogen fertilizer on nitrate leaching from a shallow limestone soil growing a five course combinable crop rotation

Patrick A. Johnson, Mark Shepherd, P.N. Smith · Soil Use and Management · 1997 · 33 citations

Agriculture, Crop Sciences, Soil Sciences +17

Nitrate leaching from a shallow limestone soil growing a five course combinable crop rotation: the effects of crop husbandry and nitrogen fertilizer rate on losses from the second complete rotation

Patrick A. Johnson, Mark Shepherd, D. Hatley et al. · Soil Use and Management · 2002 · 33 citations

Agriculture, Agronomy, Soil Sciences +17

The effects of nitrogen fertilizer rate, cultivation and straw disposal on the nitrate leaching from a shallow limestone soil cropped with winter barley

Patrick A. Johnson, P.N. Smith · Soil Use and Management · 1996 · 14 citations

Agriculture, Agronomy, Soil Sciences +17