plantdepth
Planting depth
With deep planting the tubers in the ridge are better protected by soil than with shallow planting.

Advantages and disadvantages of deep-, normal-, and shallow planting.
Deep
- tubers well covered by soil and well protected against direct light (greening of tubers)
- tubers well protected against high temperatures (secondary growth)
- tubers well covered by soil and well protected against tuber moth and late blight
- difficult to lift potatoes with elevator digger
- poor drainage after irrigation or rain
Normal
- tubers reasonably well protected by soil, but re-ridging may be needed
- relatively easy to lift with elevator digger
- drainage rather good after irrigation or rain
Shallow
- tubers insufficiently covered by soil
- easy to lift with elevator digger
- drainage good after irrigation or rain