Potassium is needed in relatively large amounts to support the various plant functions critical for huge yields. Potassium is vital in the activation of more than 80 plant enzymes that regulate various functions including the opening and closing of the stoma necessary for proper gas exchange and water usage. Potassium is also very important in the utilisation and conversion of Phosphorous into an energy source. A potassium deficiency in your plants could be a big problem. Symptoms such as yellowing, cupping leaves or brown/orange spots can indicate a potassium deficiency. Make sure your plants have the potassium they essentially require and be rewarded with a heavier, denser crop.
For optimal results use during the last 3 weeks of flowering before harvest. It has an NPK of 0-0-62. Application Rates • Soilless or Coco fibre 1-2 grams per litre / 4-8 grams per gallon • Hydroponic use 1 gram per litre / 4 grams per gallon of nutrient solution