Posted 9/26/2010 22:07 (#1375450 - in reply to #1374817) Subject: Don
EC MN - Hour North of 'The Cities'
Have you tried searching for South Dakota State's research and spreadsheet on seed placed fertilizer? It might not be THEE answer, but it could guide you in the right direction.
I'll try to find the link...it might be in a presentation from Conservation Tillage Conference if I remeber correctly.