Estimates of Net Revenue (Oklahoma, Winter Wheat)
Year Average Wheat Yields, bu/ac $/bu Gross Revenue, $ Avg. N Rates, lb/ac Cost/lb N, $ Fert Costs Rent, $/ac Net income, $ Acres of Wheat Planted (millions) Acres of wheat Harvested (millions)
1991 28 2.85 79.8 80 0.25 20 25 34.8 7.4 5
1992 28.5 3.19 90.915 80 0.25 20 25 45.915 7.3 5.9
1993 29 2.94 85.26 80 0.25 20 25 40.26 7.1 5.4
1994 27 3.41 92.07 80 0.25 20 25 47.07 7 5.3
1995 21 4.41 92.61 80 0.25 20 25 47.61 6.9 5.2
1996 19 4.73 89.87 80 0.25 20 25 44.87 7 4.9
1997 33 3.21 105.93 80 0.25 20 25 60.93 6.7 5.4
1998 39 2.57 100.23 80 0.25 20 25 55.23 6.6 5.1
1999 35 2.35 82.25 80 0.25 20 29 33.25 6.4 4.3
2000 37 2.5 92.5 80 0.3 24 29 39.5 6.1 4.2
2001 32 2.5 80 80 0.3 24 29 27 6 3.8

Nitrogen Use Efficiency, Nitrogen Fertilizers, NUE, Nitrogen and the Environment

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Farm Income and Costs