- Optifert Potassium 14-5-40 has an acidic formula that helps improve soil conditions and reduce the effects of hard water, making it suitable for soils with high bicarbonate levels. It is used to improve crop growth and increase yield.
Key Features
- High potassium content (40%) to support flowering and fruiting.
- Contains phosphorus (5%) and nitrogen (14%) to promote vegetative and root growth.
- Acidic formula that helps correct hard-soil problems and lower pH.
- Can be mixed with other soluble fertilizers (except calcium-rich fertilizers).
Specifications
- Composition: Nitrogen (N) 14%, Phosphorus (P₂O₅) 5%, Potassium (K₂O) 40%, pH 2
- Net weight: 25 kg
- Use: Suitable for alkaline soils and areas with hard water
Directions for Use
- Fertigation through drip irrigation:
- Early growth stage: 0.5–0.8 g per litre of water (50–80 ppm).
- Flowering stage: 0.8–2 g per litre of water (80–200 ppm).
- Application by spraying:
- 7–10 kg per hectare, depending on plant type, age and planting density.
- Foliar feeding:
- Apply directly to the leaves where water or soil alkalinity is high, preferably at 2–4 kg per 1,000 litres of water (0.2–0.8% concentration).