On June 7th, a field day was held at the phosphorus experiment site in Zealand with a notable number of participants.
Key Topics Discussed:
- Background and preliminary results of the phosphorus experiments
- Phosphorus in biochar
- Position-specific phosphorus allocation
- Crop response to phosphorus deficiency
- Methods for determining phosphorus status
- Phosphorus-mobilizing cover crops
The event began at the biochar experiment site and then moved to the nearby experiment focusing on position-specific phosphorus supply.
Main Conclusions:
- There is high variability in the availability of phosphorus from biochar, necessitating further research.
- Fertilizing late-sown spring barley poses challenges, such as nitrogen leaching and losses from denitrification due to early application and extreme rainfall.
