DEP uses remotely sensed and other data to derive a tillage practice for each
modelled hillslope point. This practice is expressed as a code with increasing
values implying more intense tillage. Here's a brief summary of what each
code implies. A HUC12's dominant tillage practice is the most common tillage
practice within the HUC12 according to our estimates.
| Code | Label | Description |
|---|
| 1 | No till |
No tillage except by no till planter. |
| 2 | Very high mulch |
Spring field cultivate, plant (includes fall chisel plow before corn) |
| 3 | High mulch |
Fall chisel plow, spring field cultivate, plant (includes disk before corn, disk was substituted for field cultivate for sorghum). |
| 4 | Medium mulch |
Fall chisel plow, spring disk, field cultivate, plant (included an additional spring disking before corn). |
| 5 | Low mulch |
Fall chisel plow, two spring disk, field cultivate, plant (before corn, moldboard plow was substituted for chisel plow, and no spring disk). |
| 6 | Fall moldboard plow |
Fall moldboard plow, spring disk, spring field cultivate, plant (no spring disk before corn silage). |
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