PK
WHEN TO APPLY
There’s no doubt PK 13/14 can really boost your
plants’ flowering, but knowing when to use it
(and how much) is essential to maximizing how
effective the booster is on your growroom plants.
13/14
for major flowering
by Rich Hamilton
38
Maximum Yield
I
f you want to get the most out of your plants during the
flowering stage, it is recommended growers use a PK 13/14
(a high-grade mixture of 13 per cent phosphorus (P) and
14 per cent potassium (K)). Why? Let’s look at what happens
to the plant during flowering, which will help us understand
the role and importance PK 13/14 plays.