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Illinois Fertilizer Conference Proceedings
January 29-31, 1996

Main Index 1996 Index Search

Table 5: Fall 1994 soil inorganic and organic N content at Monmouth, ILspacer

  N rate (lb/a)
depth (in) 0 60 120 180 240
  Inorganic N (lb/a)†
0-6 16.5 (9.3) 17.0 (9.6) 22.0 (12.4) 24.1 (13.6) 27.9 (15.8)
6-12 9.4 (5.3) 13.2 (7.4) 13.0 (7.3) 22.8 (12.8) 30.5 (17.1)
12-24 10.4 (2.9) 11.1 (3.1) 13.5 (3.8) 30.1 (8.4) 38.0 (10.6)
24-36 0.0 0.0 0.9 (0.2) 5.6 (1.4) 5.0 (1.3)
36-48 0.0 0.0 0.0 0.5 (0.1) 3.1 (0.8)
  Organic N (%)‡
0-6 0.221 0.227 0.219 0.217 0.216
6-12 0.192 0.198 0.177 0.172 0.181
12-24 0.122 0.126 0.105 0.113 0.108
24-36 0.054 0.056 0.046 0.044 0.044
36-48 0.027 0.026 0.029 0.025 0.022

 †LSD0.10 = 3.2 ppm. Values in parenthesis show N concentration in parts per million

‡LSD0.10 = 0.013%

 

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