New Grower 5x5 Tent, 1000w HPS, 9 Plants (Mephisto)

[Yozhik]

So the soil should be between 6.3-6.5? What about the water being fed and the run off water?

Sorry ... I meant pH for feeding in soil should be about 6.3 to 6.5.
This is the supposed 'sweet spot' for plants in soil.

If you pH the feed you're putting in, and pH the runoff, the difference will then give you an idea of what the soil is doing and what is going on under the hood, and where adjustments need to be made.

 

[witchyhour]

With super soil it needs to biologically active, the more active the better. After checking the pH and figuring out the problem, I would make a mixture of worm castings, some form of calcium, and a form of nitrogen.

For the casting I would use enough to make about a 1-2" layer, for calcium I would suggest either >>PULVERIZED<< dolomite lime or oyster flour, and nitrogen can be a plethora of things but an alfalfa and kelp mix would be ideal/easy.

This would help with microbe population, provide calcium while buffering pH, and give some essential elements/nutrients for growth.

Crushed dried eggshells are very good for calcium as well!

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[witchyhour]

I use both of these:

I love the drops and have used it from day one. After a while, and having a lot more plants, it's become a little cumbersome so I got the pen. The pen is way more convenient, but I like having the liquid test for a backup and also for verification when I suspect the pen results (although so far the pen results have always been right).

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[witchyhour]

Not a problem brother, I'm always down for some dirty talk. I have only grown organic, and started on super soil and have had many ups and downs. Most of my experience comes from those down times. One of these days you'll come by a problem/question you can help with, just pass that help on and keep the good vibe flowing is all I ask in return.


I'm not familiar with GBD's soil mix. The images on the link did not load, and I did not see a recipe. Nothing personal, but I'm not going to scour the whole thread for it. Can you just post it here. It could also help others give suggestions now, and later.


That's a bit of a loaded question. In short, yes you can just ph them both, and keep it in the proper range. I would take the opportunity to study your soil, and see what could be modified to help prevent pH swing in the future. Then you could just leave the pH pen in the junk drawer where it belongs.

Remember, just cause it worked for Joe Blow, it may give you different results. Same thing can be said for anything I tell you. The great thing about organics is there are many ways to get the results you'd like. It just depends how much work/research you are willing to do.


If you follow the link I posted on checking run off it will explain how to figure out the soil ph. Unless you have a soil pH probe, the run off is how you can check the pH.

When/if I pH my feed/water I do 5.9-6.1 in veg, and 6.3-6.5 in flower, but again with a "happy soil" the pH will regulate according to the plant needs.

A molasses feeding, say bi-weekly to monthly, will/should provide you with all the cal/mag you need. Some strains will want more cal/mag, but in general it should be just fine. I have Oily-cann by Earth Juice. It is a cal/mag with humic acids and zero nitrogen. I personally use it in a foliar spray about twice a week. (I foliar feed something every day, sometimes twice a day, sometimes just water) Foliar feeding is an easy and fast way to deliver micro nutrients, plus it gives the plant some physical stimulation (rain). I'll throw about anything in a spray bottle with a VERY light mix and give it a shot at least once.My current garden are photos that have been vegging for about 9-10 weeks, and between my soil, and sprays I have not gave them any cal/mag in the root zone. I also use LED which suck calcium out of the plants. (not sure why though)

Apparently it's the lack of UV rays that does it and LED's that have UV don't do it. That's what I read from a light vendor whose lights have UV, so to be taken with a grain of salt.

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[witchyhour]

Sorry ... I meant pH for feeding in soil should be about 6.3 to 6.5.
This is the supposed 'sweet spot' for plants in soil.

If you pH the feed you're putting in, and pH the runoff, the difference will then give you an idea of what the soil is doing and what is going on under the hood, and where adjustments need to be made.

You can always switch to hydro and have full, immediate access to the roots! [emoji16]

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[Highro]

Sorry ... I meant pH for feeding in soil should be about 6.3 to 6.5.
This is the supposed 'sweet spot' for plants in soil.

If you pH the feed you're putting in, and pH the runoff, the difference will then give you an idea of what the soil is doing and what is going on under the hood, and where adjustments need to be made.

Ok, so my feeding pH should be 6.3-6.5 but what pH should I be aiming for with my soil?

Sorry ... I meant pH for feeding in soil should be about 6.3 to 6.5.
This is the supposed 'sweet spot' for plants in soil.

If you pH the feed you're putting in, and pH the runoff, the difference will then give you an idea of what the soil is doing and what is going on under the hood, and where adjustments need to be made.

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[Highro]

Fed a double dosage of CalMag to the plants this morning, also fed them a little more than usual. I'll keep you guys updated on how the plants react to it.

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[Highro]

Plants don't appear to have any more cal-mag issues. But leaves are still yellowing. Will posts pics tomorrow.