Liquid potassium fertilizer
Besides the basic elements N and P, also K is crucial for every cultivation. Potassium makes for the sturdiness of cells (water household), and prompts the blooming. Potassium also plays an important role in the forming of cells and the osmoses regulation.
A deficiency of potassium manifests itself when the plant does not open the stomata sufficiently for vaporization in order to cool down. This results into the development of chlorosis at the rims of the leaves which develops into necrosis.
Dosage:
As a supplement during the blooming period add 25-150 ml. per 100 liters of nutrient solution.