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Illinois Fertilizer Conference Proceedings
January 27-29, 1992

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Table 3: Average nitrogen recommendation by previous crop for three different nitrogen recommendation systems (lbs N/A)spacer

Responding Sites No. Sites Optimum N Rate Crop Factor PPNT PSNT
Soybeans 16 115 137 102 134
Corn 10 124 159 132 151
Other Legume 1 135 94 72 135
Wheat/Beans (DC) 3 145 131 102 135
Non-Responding Sites          
Soybeans 8 0 97 54 82
Corn 8 0 165 105 138
Alfalfa 2 0 111 82 90

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