What is Growth Technology Super PK and what does it do?
Growth Technology Super PK is a concentrated phosphorus and potassium (PK) additive designed to support heavier flowering and fruiting. It’s not a base nutrient, but a bloom booster that works alongside your regular feed. While similar to PK 13/14 products, it has a unique formula and should be used as a standalone PK supplement.
When should I use Growth Technology Super PK?
Begin using Growth Technology Super PK at the first signs of flowering and continue through bloom. It's suitable for all flowering and fruiting plants, including tomatoes, chillies, and strawberries. Avoid using it during vegetative growth, as high PK levels can disrupt nutrient balance.
How much Growth Technology Super PK should I use?
Start at 1 mL per litre of nutrient solution. Increase gradually to 3 mL/L if plants are thriving. Do not exceed 5 mL/L. For example, a 10L watering can would use 10–30 mL depending on the stage and plant response.
Should I adjust my base nutrients when adding Super PK?
Often, yes. Growth Technology Super PK raises EC, so many growers reduce their base nutrient strength slightly to stay within target EC ranges. Always mix, then test and adjust EC and pH as needed.
When should I check pH after using Growth Technology Super PK?
Always check and adjust pH after adding all nutrients and additives. Aim for a final pH between 5.5–6.5, depending on your growing medium and method.
Can I use Growth Technology Super PK in hydro, coco, or soil?
Yes — it’s compatible with hydroponics (recirculating or run-to-waste), coco coir, and soil. In soil or autopot systems, be more conservative with dosing, as salts can build up more easily.
Can Growth Technology Super PK cause nutrient burn or lockout?
Yes, if overused. Signs include leaf tip burn, crispy edges, stalled growth, or high runoff EC. Reduce dosage immediately, stabilize pH, and flush if needed. Avoid stacking with other strong PKs.
Can I combine Super PK with other additives?
Yes, but do so cautiously. Avoid using multiple PK boosters. You can use it with bloom enhancers like enzymes or silica, but monitor total EC closely. Always mix each product separately into water.
Will Growth Technology Super PK increase yield or flower density?
It can support heavier, denser flowers if your plants are healthy and your grow environment is dialed in. However, it won’t compensate for poor lighting, airflow, or weak roots.
Is Growth Technology Super PK safe in tap or RO water?
Yes. In hard tap water, you may need to lower your base nutrient strength. In RO or rainwater, ensure your base feed (and possibly Cal-Mag) covers essential minerals that RO lacks.
Can I foliar spray Growth Technology Super PK?
No — it's designed for root-zone feeding. Foliar application can cause leaf burn and is not recommended.
How often should I feed Growth Technology Super PK?
In run-to-waste setups, add it each time you mix a fresh solution. In recirculating systems, dose weekly and monitor EC and reservoir stability throughout the week.
Can I use Growth Technology Super PK right up to harvest?
Yes, but if you're aiming for a clean finish, taper off or stop before your final flush. Growth Technology Super PK supports bloom, but doesn't replace proper flushing techniques.
How should I store Growth Technology Super PK?
Store it sealed in a cool, dark place. Shake well before each use. It may stain surfaces if spilled, so clean up promptly and avoid exposing it to extreme heat or cold.
