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Illinois Fertilizer Conference Proceedings
January 27-29, 1992

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Table 1: Optimum N rate per unit of land area and per unit of grain harvested derived from results of a N rate study over 8 years of continuous corn at Monmouth, IL.spacer

Year Optimum N rate
  lb/acre lb/bushel
1983 164 1.09
1984 184 1.07
1985 183 1.01
1986 180 1.02
1987 187 1.10
1988 100 1.47
1989 144 1.29
1990 168 0.90
avg. 164 1.12

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