| Crop | Statistic | NH4-N ppm | NO3-N ppm | SO4-S ppm | pH water |
| Corn | Mean | 2.2 | 10.4 | 13.4 | 6.7 |
| STD | 6.2 | 9.0 | 10.8 | 0.5 | |
| Soybean | Mean | 0.5 | 5.6 | 12.7 | 6.6 |
| STD | 0.6 | 5.1 | 6.0 | 0.9 |