HESI PK 13/14

Product detailed description

In the final stage of flowering, the ratio of phosphorus and potassium determines the yield - HESI PK 13/14 supplies it directly. It is used in hydroponic systems and in coco as a supplement to the bloom base, for a full and abundant bloom.

How to apply it correctly

PK 13/14 is not a stand-alone fertiliser - it is added to the bloom base (e.g. Hesi Hydro bloom or Hesi Coco). Increase the dose gradually from the second half of the flowering phase. The aim is to gently raise the PK content and avoid excess right at the start of flowering, which is especially important in hydroponics.

Dosage

The dose ranges approximately from 2.5 to 15 ml per 10 l and is increased gradually; during the last week before harvest, flush with clean water. Be careful with the amount: excess potassium can cause a deficiency of calcium and magnesium, so do not exceed the dose.

Frequently asked questions

When should I start with PK 13/14?

Only from the second half of the flowering phase and gradually, not right at the start of flowering.

Can I use it instead of a basic bloom fertiliser?

No. PK 13/14 is a supplement - always combine it with a bloom base such as Hesi Coco or Hesi Hydro bloom.

Exact weekly dosage schedule?

Exact doses according to the flowering week and medium can be found in the Hesi dosage table (link below).

Exact dosage for individual ranges can be found in the HESI dosage table.