Maize
- Maize
Maize - Number reduced
Symptoms
The cobs of K-deficiency plants are narrowed and peaked. Grains in the cob tips are only poorly filled.
Reasons
Potassium deficiency (cobs at the right side)
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
- Better root growth
- Increased yields