During early flowering and fruit set, plants absorb higher levels of phosphorous and potassium. As levels fall, the growth and flowering rates can slow, leading to aborted flowers and fruit. When used regularly, PK TOP UP™ can be used to quickly correct deficiencies or simply to return phosphorus, potassium and trace elements back to optimal levels.
Continue using NITRO-K™ until there are visible signs of flowers and buds then start using PK TOP UP™. This will ensure a continued supply of potassium for flowering while nitrogen is replaced by additional phosphorous needed for fruit production. Using the two products in succession will give improved colour, flavours and yields. The results will clearly be visible in the quality and yields of the final harvest.
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When to Use:
Use PK TOP UP™ once flowers begin to form. PK TOP UP™ is suitable for all ‘run to waste’ and ‘re-circulating’ systems. Regularly flush your system to prevent nutrient and plant waste build up.