getogrow
Well-Known Member
I agree. there is no need to measure ph in soil. You cannot change it with "ph down" or up.
Nitrogen deficiency? Nutrient lockout? Help pls!
- Thread starter descon0c1do
- Start date
Wattzzup
Well-Known Member
Well Fox farm claims to be organic and it’s liquid bottles. So who knows for sure. Even those bottles when dosed properly usually end up around 6.8. I’m sure they have some buffer as well.
getogrow
Well-Known Member
The only bottle in the fox farm line up thats organic is the big bloom , the rest is 100% chemicals.
Kassiopeija
Well-Known Member
@OP
so how much volume have your pots?
so how much volume have your pots?
Kassiopeija
Well-Known Member
you can. just not with a few drops, but guess what newbies do when the pH probe goes unnoticed outta whack...
and soil buffers can be deplete, from that point onwards one has to treat a soil (a "0-soil") just like soilless.
myke
Well-Known Member
As I said already
Wattzzup
Well-Known Member
What I’m saying is at his stage he shouldn’t be ph’ing or adding nutrients.
I only ph when I feed liquid nutrients. But even then most of the time those have buffers and my ph ends up ~6.8
Kassiopeija
Well-Known Member
Correct, especially since his water @ EC 0.1 is extremely soft - that is a good water for plants but warrants a handful of dolomite or algae chalk to the substrate, and then one is good to go (or CalMag with every feed...)
The pH 5 feeds are causing me a headache. Especially since I have no clue if he did really soak these pots completely full with pH 5.0 water full or just did add half a cup to these pots...?
I also feel he's not watering correctly, and that is a huge can of worms on soil, esp. with small plants under somewhat weak lights...
BTW @OP
as for your light's ppfd - it's ok if you grow forself but don't expect huge colas - rule of thumb for Cannabis in flower is 700-1000ppfd. But your ~500 are going to work as well, you'll see.
Kassiopeija
Well-Known Member
you need to water as much so that all soil is moist. This is usually 1/4th to 1/3 of the total volume of earth that is within each pot. After that, allow for a longer time where you don't irrigate.
If you just give water in small dosages, you'll get alot of dry spots and roots therein will die, and roots are not going to be able to explore the dry regions.
Kassiopeija
Well-Known Member
NPK is a good veg formulae, but your fertilizer is missing:
- Calcium
- Sulfur
- Magnesium
... so it's designed to work together with soft-to-medium-hard tapwater, where you have about 200ppm in these minerals mostly.
Epsom Salt & Calcium Nitrate, or a CalMag is needed.
descon0c1do
Member
Hi again! Yes, it is organic! Black Gold is made with algae Ascophyllum Nodossum and humic acids derived from Leonardite.
descon0c1do
Member
I don't have neither epsom salts nor a wife haha. I'm checking at a local greenhouse if they have CalMag solution.
Yes I do! I will try this. I measured the soil pH just now with an analog meter i borrowed and it gave somewhere between 6.5 and 7.
descon0c1do
Member
I'm trying to get some CalMag from a local greenhouse. I'll know later in the afternoon.
descon0c1do
Member
Noted! Thanks!
descon0c1do
Member
This pots are designed to make the roots go deep down (more than with normal pots) and generate a strong stem. The windows are made to attract the roots, and once they get there, they create a callus and start throwing new arms in different directions to colonize the whole substrate, instead of getting the roots to stay on the border.
This may clear it out:
Translation:
1 - 2 - 3 - Totally colonized - Empty of roots
descon0c1do
Member
5 lts!