Nish
Active member
that is essential
especially because of the ph value. when you switch to flowering, the metabolism of your plants changes.
you will see this clearly on canna coco, because the ph value in the medium will go down. because your plant roots excrete acid.
if you would not counteract this, your ph would slide to a value below 5, where they can no longer feed themselves.
the aim is to maintain a ph range of 5.4-6.0. for example. if the drain value reaches 5.6, my nutrient solution has pH 6.0 the next time. to counteract acidification at an early stage. after watering, the ph in the drain is then 5.7-5.8. it then falls back to 5.6 until the next pour.
I pay much less attention to the ec value, depending on the phase and the additional products used in the canna scheme, it can be around 4-5, so I don't panic.
Since I use pk13 / 14 exactly according to the scheme, this is my time when I press my medium down to an ec value of 1.8-2.0 8-10 days later
the last week before the harvest there is only ph-adjusted water, i don't need to rinse.
Think I'll go back to rockwool, when life was simple