Phosphorus deficiency made worse by
- Acidic or very alkaline (calcareaus) soils
- Low organic matter
- Cold or wet conditions
- Crops with a poorly developed root system
- Soils with low P reserves
- Soils with a high phosphate capacity
- Iron rich soils
Phosphorus is important for
- Foliage lusher and greener
- Shoot growth vigour increased
- Fruit set/crop load increased
- Yield is increased
- Improved flowering
- Better fruit set