spacer

Illinois Fertilizer Conference Proceedings
January 29-31, 1996

Main Index 1996 Index Search

Table 1: Effect of N treatments on the 1990 and 4-yr average corn yields and NO3-N concentrations in the soil water at a 5-foot depth in Olmsted Countyspacer

      Grain Yield Nitrate-N1
Tillage N rate Time/Method 1990 1987-90 Conc. in Water
  lb/A   ---- bu/A ---- ---- mg/L ----
Chisel 0 -- 76 84 1
" 75 Spr. preplant 145 156 11
" 150 " 155 172 29
" 225 " 156 167 43
" 150 Fall 145 169 43
" 150 Fall + N-Serve 148 169 50
" 75 + 75 Spr. + SD 154 168 47
No till 150 Spr. preplant 140 168 20

1In ceramic cup samplers on Sept. 5, 1990.

Back to Main Report

spacer
*Department of Crop Sciences
*University of Illinois Extension
*College of Agricultural, Consumer, and Environmental Sciences
*University of Illinois at Urbana-Champaign
*Illinois Fertilizer & Chemical Association
*Illinois Department of Agriculture		   Design by: Crop Sciences Computer and Web Support Group
Copyright © 2005 University of Illinois at Urbana-Champaign
Email site problems to the webmaster