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Plagron PK 13/14 5l
Plagron PK 13-14 5L is the bulk format engineered for professional growers and large-scale indoor operations. Five litres of this concentrated PK fertiliser produces up to 2,500 litres of nutrient solution, delivering the lowest per-litre cost in the range. The formulation provides 13.4% water-soluble P₂O₅ and 14.4% water-soluble K₂O at a density of 1.28 g/ml. Its non-foaming, colourless and odourless profile ensures clean operation in automated irrigation systems and mixing tanks. Stored between 0°C and 35°C, the product remains stable for 4 years. Order at plantandflower.be.
Plagron PK 13-14 5L — bulk PK supply for professional flowering operations
For growers managing large canopies or running back-to-back flowering cycles, the 5L format of Plagron PK 13-14 eliminates the logistical overhead of frequent reordering. With a single container producing up to 2,500 litres of nutrient solution, it represents the most cost-effective way to maintain consistent phosphorus and potassium supplementation at scale. Add it alongside your other flowering nutrients for a fully stocked grow room.
Key features
The formulation is identical to the smaller sizes — only the packaging differs, not the performance.
- 13.4% water-soluble P₂O₅ sustains the energy metabolism required for prolific fruit set and maturation
- 14.4% water-soluble K₂O builds robust cell structures and optimises the plant's water-use efficiency
- Density of 1.28 g/ml — the full 5L container weighs approximately 6.4 kg, plan handling accordingly
Application & dosage
Shake the container thoroughly before each use. Dose a maximum of 2 ml per litre of water (1:500) and apply at every irrigation throughout the flowering phase. For large-volume mixing, a dosing pump or graduated cylinder is recommended for accuracy. Add PK 13-14 to the water first, then supplement with your Plagron base nutrient to reach the target EC. Store the opened container in a cool, dark location to maintain product integrity.
Grower benefits
The 5L format delivers the lowest cost per application in the PK 13-14 range, making it the rational choice for any operation where volume matters. The clear, non-foaming solution is specifically suited to automated drip systems, recirculating reservoirs and commercial mixing tanks. Combine with Plagron Green Sensation 5L for maximum flowering output.
Combinations & alternatives
Match your PK 13-14 5L with Plagron Terra Bloom 5L for soil grows or Plagron Cocos A&B 5L for coco setups. Supplement with Sugar Royal or Power Buds to round out the flavour and volume profile of your harvest.
Conclusion
Plagron PK 13-14 5L is the professional-grade solution for growers who demand efficiency and uninterrupted supply. Order at plantandflower.be for fast delivery across Belgium.
| Primary elements (% w/w) | |
|---|---|
| Phosphorus pentoxide (P₂O₅) | 13.4% (water-soluble) |
| Potassium oxide (K₂O) | 14.4% (water-soluble) |
| Physical & chemical properties | |
|---|---|
| Acidity (pH) | 7.1 |
| Conductivity (EC) | 155 mS/cm |
| Density | 1.28 g/ml |
| Form | Liquid |
| Colour | Clear and colourless |
| Odour | Odourless |
| Foaming | None |
| Storage & use | |
|---|---|
| Storage | Between 0°C and 35°C (protect from frost and direct sunlight) |
| Dosage | Maximum 2 ml per 1 litre of water (1:500) |
| Application | At every watering during the flowering phase |
| Shelf life | 4 years after production (unopened) |
What is the cost advantage of the 5L format over smaller bottles?
The exact savings depend on current pricing, but as a general rule, the 5L format offers the lowest price per litre in the PK 13-14 range. With 2,500 litres of producible nutrient solution, the cost per watering is substantially lower than with the 0.25L, 0.5L or 1L bottles.
Is the 5L PK 13-14 compatible with automated drip irrigation?
PK 13-14 is a clear, colourless liquid that produces no foam when mixed. These properties make it fully compatible with automated drip systems, recirculating reservoirs, and commercial-scale mixing equipment without risk of clogging or residue buildup.
How should the 5L container be stored after opening?
Store the opened container in a cool, dark location between 0°C and 35°C, protected from frost and direct sunlight. Ensure the cap is tightly sealed after each use. Unopened, PK 13-14 has a shelf life of 4 years from the production date.
Which Plagron base nutrient pairs best with PK 13-14 5L?
Select the base nutrient that matches your substrate: Terra Bloom for soil, Cocos A&B for coco fibre, or Hydro A&B for hydroponic systems. Always add PK 13-14 to the water first, then adjust with the base nutrient until you reach your target EC value.
