Influence of subsurface drainage on soil temperature in a cold climate Date Issued 2008 Author Jin, C. X. Sands, Gary R. Kandel, H. J. Wiersma, J. H. Hansen, Brad J Main Topic Water Economics
The effects of subsurface drainage depth and intensity on nitrate loads in the northern Cornbelt Image Date Issued 2008 Author Sands, Gary R. Song, I Busman, Lowell M. Hansen, Brad J Main Topic Water Economics
