PK Top Up

PK Top Up is a formulation designed to replenish phosphorous (P) and potassium (K) supply in your nutrient solution during the blooming stage. Research has shown that during the flowering stage high levels of P and K are extracted from the nutrient solution by the plants in just a few days. Adding PK Top Up to your nutrient tank during flowering will ensure that you have a steady supply of P and K during this critical time. PK Top Up has also been formulated to also include chelated minor trace elements important for plant metabolism. PK Top Up can also be used in the final week before harvest. PK Top Up is by no means a substitute for regular dumping and flushing away of plant waste build up.