Role of Nutrients by Potato Growth Stage
Find out which nutrients are most important at different growth stages.
Planting
- Nitrogen and Potassium - early growth and dry matter
- Phosphate - more tubers, growth and dry matter
- Magnesium - for plant development
- Zinc and Manganese - Powdery and Common Scab control
- Sulphur - Common and Powdery Scab and tuber numbers
Before tuber initiation/hook stage
- Phosphate - more tubers, stronger growth
Tuber initiation
- Phosphate and Magnesium - bigger tubers
- Zinc and Manganese – skin finish
- Calcium (+/- Boron) – good skin quality, internal rust spot reduction, stress tolerance – drought/heat
Flowering and bulking
- Nitrogen, Phosphate and Magnesium - maintain tuber growth
- Calcium – improves skin finish and reduces disease impact
