PK13-14 is made from 13% P2O5 and 14% K2O for rapid absorption and to 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, rockwool 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. Best results occur with aerated filtered or
rain water at 22-24°C and pH 6-6.5. Use for THREE WEEKS.