Potassium deficiency made worse by
- Acidic soils (low pH)
- Sandy or light soils (leaching)
- Drought conditions
- High rainfall (leaching)
- or heavy irrigation
- Heavy clay (illite) soils
- Soils with low K reserves
- Magnesium rich soils
Potassium is important for
- Healthy green foliage
- Important for fruit size, development and yield
- Reduction of fungal diseases
- Improved sugar content of berries
- Improved maturation of berries
- Needed in great quantities
Yara recommended fertilizers for Potassium
YaraMila COMPLEX
Grapevines: For best results, apply YaraMila Complex two times : First application : 50 kg/acre (soil applied) at the time of pruning Second application : 25 kg per acre (soil applied), 41-80 days after pruning.
Read more about YaraMila COMPLEXYaraTera DELTASPRAY 19-19-19
Grapevines: 15 kg/acre (0.4 kg/day/acre) at 6-40 days after pruning
Read more about YaraTera DELTASPRAY 19-19-19YaraTera KRISTA K
Grapevines: 60 kg/acre (2 kg/day/acre) at 80-110 days after pruning
Read more about YaraTera KRISTA KYaraTera KRISTA MKP
Grapevines: 20 kg/acre (0.5 kg/day/acre) at 40-80 days after pruning
Read more about YaraTera KRISTA MKP