Deep reduced tillage
Deep tillage with a cultivator is often used on light soils that require loosening:
- when large amounts of harvest residues have to be mixed into the soil
- before compaction-sensitive crops such as oilseeds, peas and sugar beet
- when wheel tracks and compaction damage need to be repaired
A combination cultivator such as TopDown or 483 Chisel Pro can be used for one or two passes or alternatively a field cultivator such as the QX2 and XL2, often in combination with a disc cultivator such as Carrier.
Deep tillage gives a coarser finish than shallow cultivation, so several passes can be required on heavy soils.
When deep cultivation is carried out within the same depth range as conventional tillage (4-6 inches or deeper), the costs and fuel consumption per acre are relatively high, approaching those of conventional tillage systems in many cases. The most important factor in favour of deep reduced tillage compared with conventional tillage is the considerably higher capacity per hour. The decreased risk of erosion and crusting as a result of the straw residues on the surface is another advantage.