Effect of tillage systems on runoff losses of nutrients, a rainfall simulation study Date Issued 1978 Author Barisas, S. G. Baker, James L. Johnson, H. P. Laflen, John M. Main Topic Water Economics
Nitrate-Nitrogen in Tile Drainage as Affected by Fertilization Date Issued 1981 Author Baker, James L. Johnson, H. P. Main Topic Water Conveyance & Hydraulics Water Economics
Nitrate, Phosphorus, and Sulfate in Subsurface Drainage Water Image Date Issued 1973 Author Baker, James L. Campbell, K. L. Johnson, H. P. Hanway, J. J. Main Topic Water Quality & Pollutants Water Use & Availability Water Conveyance & Hydraulics Water Economics