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Plagron PK 13/14 1l
Plagron PK 13-14 1L is the standard reference format of this concentrated phosphorus-potassium fertiliser for the flowering phase. One litre produces up to 500 litres of nutrient solution at the 2 ml per litre dosage rate, covering multiple flowering cycles in a typical indoor environment. The formulation contains 13.4% water-soluble P₂O₅ and 14.4% water-soluble K₂O with a density of 1.28 g/ml and a near-neutral pH of 7.1. This ensures predictable performance and straightforward integration into any feeding schedule. Available now at plantandflower.be.
Plagron PK 13-14 1L — the standard PK booster for consistent flowering results
The 1L format of Plagron PK 13-14 is the most widely adopted size in the range, and for good reason. It provides up to 500 litres of nutrient solution from a single bottle — sufficient volume to maintain uninterrupted PK supplementation across multiple flowering cycles without frequent reordering. Explore the complete Plagron product line to build a fully integrated feeding programme.
Key features
PK 13-14 delivers its active components in a form that is immediately available to the plant's root system.
- 13.4% water-soluble phosphorus pentoxide (P₂O₅) supports photosynthetic energy conversion and fruit maturation
- 14.4% water-soluble potassium oxide (K₂O) optimises osmotic regulation and contributes to denser, heavier fruit
- Density of 1.28 g/ml ensures consistent concentration in every measured dose
Application & dosage
Shake the bottle before dispensing. Add a maximum of 2 ml per litre of irrigation water (1:500 dilution) and apply at every watering throughout the flowering phase. Introduce PK 13-14 into the water before adding your Plagron base nutrient, then adjust the total EC to your target level. The 1L format eliminates mid-cycle interruptions and allows for consistent dosing over extended periods.
Grower benefits
Supplementing with phosphorus and potassium during flowering produces measurably denser and heavier fruit, translating directly into higher yields per plant. The clear, odourless solution generates no foam, making it suitable for both hand watering and automated drip systems. Add Plagron Green Sensation 1L to your schedule for a comprehensive bloom protocol.
Combinations & alternatives
Pair PK 13-14 with Plagron Sugar Royal 1L for enhanced terpene development, or with Plagron Power Buds 1L to drive additional flower mass. All three products are available in the 1L format for streamlined inventory management.
Conclusion
Plagron PK 13-14 1L is the go-to choice for growers who value reliability and efficiency. Order at plantandflower.be for fast delivery throughout 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) |
Why is the 1L format the most popular size for PK 13-14?
The 1L format provides the best balance between unit cost and usage duration. It yields up to 500 litres of nutrient solution, which is sufficient for multiple flowering cycles in a typical indoor grow. This reduces both reordering frequency and per-litre cost compared to smaller sizes.
What is the difference between PK 13-14 and Green Sensation?
PK 13-14 is a pure phosphorus-potassium fertiliser that delivers these two macronutrients exclusively. Green Sensation is a multi-component bloom stimulator with a broader active profile. The two can be used together — consult the Plagron grow schedule for correct timing and ratios.
Does PK 13-14 work on all substrates?
PK 13-14 is substrate-agnostic. It performs equally well in soil, coco and hydroponic systems. The fully water-soluble minerals and neutral pH of 7.1 ensure compatibility across all growing media and irrigation methods.
How long does a 1L bottle of PK 13-14 last?
Duration depends on the number of plants and watering frequency. As a reference, at 2 ml per litre with a daily consumption of 10 litres of nutrient solution, a 1L bottle lasts approximately 50 days. Larger operations should consider the 5L format for better cost efficiency.
