Illinois
Fertilizer Conference Proceedings
January 28-30, 1991
| Home | 1991 Index | Search |
| Home | 1991 Index | Search |
| SOIL no. | SOIL type | Brief Description |
| 152 | Drummer sicl | Level to depressional, poorly drained soil developed in silty clay loam
sediments with a black surface, 15-41 cm (10-16 in) thick. |
| 67 | Harpster sicl | Depresional to level, poorly drained soil developed in 92 cm (36 in) or more of calcareous gray silty or loamy material with a black to very dark gray surface 15-31 cm (6-12 in) thick. Calcareous surface with snail shells and fragments. |
Median test pH 65.9
Average test pH 6.2
Standard Deviation 0.8 pH unit
Test levels below pH 6.0 are enclosed by a circle.
Test levels above pH 7.0 are enclosed by a square
Median test 51 lbs/a P
Average test 58 lbs/a P
Standard Deviation 0.8 pH unit
Test levels below 50 lbs/a P are enclosed by a circle.
Test levels above 70 lbs/a P are enclosed by a square
Median test 328 lbs/a K
Average test 331 lbs/a K
Standard Deviation 77 lbs/a K
Test levels above 400 lbs/a K are enclosed by a square
