• PK13-14 is made from 13% P2O5 and 14% K2O for rapid absorption and optimal levels according to research from Holland.
• Phosphorus (P) and Potassium (K) are vital for proper flower and fruit development.
• Trials have shown plants absorb PK from the nutrient solution but adding extra will dramatically increase the size and weight of flowers and fruit.
• PK13-14 works equally well with expanded clay, perlite, vermiculite, coco peat, rock wool and soil.

Directions for use: 1 CAP = 15ML.

Add PK13-14 once a week, three weeks before harvesting to a full nutrient tank at the rate of 2ml of PK13-14 per litre of nutrient solution. Stir well. The best results occur with aerated filtered or rain water at 22-24°C and pH 6-6.5. Use for THREE WEEKS.