For each primary tillage category, SnapPlus uses the most soil-disturbing tillage option in the RUSLE2 database. If you meet “T” with SnapPlus, then you are protecting the field from excess soil erosion. The fall and spring chisel and moldboard options include multiple tillage passes.
| Code | Tillage | RUSLE2 operations (assumptions for soil loss calculations) |
|---|---|---|
| NTg | No-till green | No soil disturbance except for planter using a double-disk opener and fluted coulter. Spray operation kills previous cover crop the day before planting. |
| NT | No-till | No soil disturbance except for planter using a double-disk opener and fluted coulter. |
| STg | Strip-till green | No soil disturbance except for 30% of the surface at planting with a strip-till planter. Spray operation kills previous cover crop the day before planting. |
| ST | Strip-till | No soil disturbance except for 30% of the surface at planting with a strip-till planter. |
| FR 1-pass |
Fall ripper (subsoiler) |
Fall pass using in-row chisel shanks or subsoiler shanks. Disturbs less than 40% of the soil surface but lifts and fractures soil to depth below plow layer. |
| SVT 1-pass |
Spring vertical tillage |
Spring pass using a seedbed conditioner with a double gang coulter caddy, rotary harrow, and rolling basket incorporator. |
| Cult FFC SFC 1-pass |
Cultivation Fall cultivation Spring cultivation |
One field cultivation in the selected season. Use for most 1-pass systems. |
| FVT 2-pass |
Fall vertical tillage | Fall pass plus a spring pass with same seedbed conditioner: double gang coulter caddy, rotary harrow, and rolling basket incorporator. |
| CND FCND SCND 2-pass |
Chisel, no disk; Fall chisel, no disk; Spring chisel, no disk |
Chisel plowing (twisted shovel) in the selected season and field cultivation before planting. |
| CD FCD SCD 3-pass |
Chisel, disked; Fall chisel, disked; Spring chisel, disked |
Chisel plowing (twisted shovel) in the selected season, spring disking (tandem), and field cultivation before planting. |
| MP FP SP 3-pass |
Moldboard plow; Fall moldboard plow; Spring moldboard plow |
Moldboard plowing followed by disking (tandem) in the selected season and field cultivation before planting. |
Note: Not all tillage options are used for all crops in SnapPlus. Some crops are not typically grown with the full range of tillage systems.