Practices Changed from Intermediate to Advanced
Practices on test fields (MZ1 and MZ4):
- Variable rate application of nutrients
- Strip-tillage placement of nutrients
- One less deep tillage pass
- Addition of multi species cover crop planting
Conventional treatment (MZ3):
- Broadcast pre-plant fertilizer application followed by two tillage passes – chisel plow and field cultivator
Advanced Practices on the farm and on test fields:
- Variable rate application of nutrients
- Deep tillage prior to planting
- Use of a nitrification inhibitor with anhydrous ammonia applications
- Subsurface placement of phosphorus fertilizers
- Grid soil sampling