Phosphorus Loss Through Subsurface Tile Drainage During Eleven Years of Manure or Fertilizer Application for Corn and Soybean.
Mazhar U. Haq1, Antonio P. Mallarino1, Rameshwar S. Kanwar2, Pederson H. Carl2, Pecinovsky T. Kenneth3 and Matthew J. Helmers2, (1)Agronomy, Iowa State University, Ames, IA, (2)ABE, Iowa State University, Ames, IA, (3)Northeast Iowa Research Farm, Iowa State University, Nashua, IA