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Preparation of you soil and pots is necessary if you want to make sure you have the best start for your plants. You want to be able to make sure both the pH and ppm of your starting soil is in the proper ranges. To do this, you want to do a slurry test on your starting soil:

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After your measurements, pH balance the soil so that you are in the grow zone by premoistening it with water at the opposite end of your targets. Making it a habit to calibrate your meters every now and then helps too. Then add a small layer (1-2 inches) of perlite on the bottom of your pots to help prevent overwatering your plants.


Then add the premoistened soil and let the pots “brew” for a week prior to planting seeds inside. This will give your plants the optimal start for growing.

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Comments

  1. I did not prep my pots correctly i def soaked the dirt and this has caused a wonky data point on starting pots. i am bringing them all closer in weight. But you can tell the difference and can understand how much this can affect plants.

    1. yup, Im glad we’ve been tracking all data, lets us standardize.

  2. A couple of questions:
    1.) After the microbes have grown, do you want to stir and turn your soil, or should we leave it as is?

    2.)Are we concerned with PPM/TDS when we’re first prepping the soil?

    3.) Does keeping seeds refrigerated increase germination rates? If so, should all seeds not in use be refrigerated until germination?

    Thanks for the knowledge. You’re changing the world for the better.

    1. no need to stir, they will grow with the roots

      2) absolutely, ppm is just to know how much is in, but pH should absolutely be balanced.

      3) Keeping seeds cold helps seeds last longer. I wouldnt put seeds in the refrigerator if its only for a couple of days, its more for long term storage until ready to use.

  3. Can the water were using to test the soil PH level be tap water? Or do I need to add a couple drops of hydrogen peroxide?

    My seed was put in a small pot after germination and now has sprouted. Do I have to wait 24 hours for the slurry test then transplant? Or am I able to do the slurry test wait a few hours and transplant to its forever pot?

    1. I was going to ask the same question! Because my slurry test is brewing now with plain tap water. In my container I mixed 1 cup of water with a few drops of H202 the night before. Then poured it out, wiped it down. Dried it, put in 1 cup of soil, and one cup of plain tap water. That was yesterday. Today I’ll be actually doing my slurry test. I guess this is better than pH balancing before mixing, because you know how your water interacts with your soil…? Lol. Best guess.

  4. Great community 😎..
    Look forward to it getting to my country and unpucker some old school assholes 🙌✌️💚💚

  5. I’m trying to locate the formula for balancing the soil. Unfortunately I can’t find the description the video says it’s located. Please point me in the right direction.

    1. Grow With Me – Day -7 – Preparing Fabric Pots

      some people dont realize theres a photo that is actually a video, you must click play on it and the video explains it, let me know if that worked.

  6. my ppm came out to 2900, is there a video to help with that?

    1. That’s fine, there’s was a variance as seen in the end of the video. Since we are during down, the discrepancy is not as drastic.

  7. Hello the link that says you are in the grow zone doesn’t seem to work

    1. ughhhh, amazon back at it again, this was the image that was in the link that used to hosted on their cloud and I guess theyre not doing that anymore:

      grow zone

  8. Its crazy. I found that after my slurry test, for every 1.4 ph increase in feed water, there was only a .18 change in the soil Ph. Once I raised my Feed water Ph to about 12.07, It was only then that I was able to obtain a slurry test of 6.2 Ph…. Let me know your thoughts

    1. It’s directly correlated to ppm. For example, a ph of 8.0 with a ppm of 500 will greatly change the soil ph while a pH of 8.0 in a ppm of 10 will hardly do anything. This is why I pH balanced the slurry, then mixed it into the soil in the video because that will be a significant change to the whole soil it was mixed into.

  9. How long do u let the mixed soil sit before transplanting?

    1. I average 5 days

  10. My soil only got to seat for a day before I had to transplanted. Was having problems with germination and got confused on the soil timeing. Its my verry first grow. I did soil test and ph balanced. I use O.R. water. How much will this affect your program?

    1. the idea is to let the rhizosphere multiply which has a symbiotic relationship with the roots of the plant. Eventually, the beneficial microbes will grow. I wouldnt sweat it.

  11. Can you explain why we PH our soil to 6.2? To my understanding, I thought the sweet spot was 6.5. So why not pH the soil at 6.5?

    1. 6.5 is ideal for bloom,

      5.8-6.2 is ideal for veg.

      The ph drifts down as the plants consume which is why we aim for higher pHs later.

      1. Oh, I didn’t know that for veg. Thanks!

  12. So lets say your water ph is at 6.5 and your soild ph with the slurry test before balance is 4.5, do you take the difference and add it into the water, which mean i would raise to ph in water to 8.5 so when i add the water in the soil that it would equal to 6.5, if that makes any sense.

    1. Yes I would take that slurry, mix it into a gallon of water, then bring this pH up to 8.5 and mix this gallon with the rest of the soil (3 fabric pots worth) that should bring it a lot closer to the actual targets listed in the chart.

      1. ok and would this be the same method for doing the juice as well cuz i was starting to freak out a lil thinking i wasnt doing it right all the way but the plant is growing though.

        1. No, the juice is not pH balanced in the end. You add it to plain water to hit the target ppm, THEN you pH it.

          1. so you fix the juice and add it to the water until it hits the ppm im looking and then ph balance it correct?

  13. So it says 1 to 1 water to soil, is there an amount? 1 cup of each? 1 quart of each? or it doesn’t matter much?

    1. Nevermind there’s a second video on this page 🙂

  14. Hey! Thank you so much for your grow videos. My water PH is at 8.52 and slurry PH is at 4.96. That makes my target PH 12.06. This seems to be a bit high, but I wanted to double check I did it properly.

    1. No that’s wrong,
      The target should be around 6.0 so it’s just 1 ph higher. I would mix that slurry in with a half a gallon of water and ph it to around 9 and mix it in with 5 gallons of soil. Then test the slurry again. If it works for each pot, do the same.

    2. I realized I didnt strain the slurry, i will try again!

  15. my slurry test is 6.4.
    tap water is 7.9.
    pre pots at what ph?
    then what should my ph roughly be at when feed?

    1. 7.2
      add half a gallon of that tap to every 5 gallons of soil, let it brew for at least 5 days before germinating seeds.

      ph of feeds will be the same 7.2 until you get your dunk runoff readings.

  16. my tap water has a ph of 7.30
    slurry ph is 5.75 and the PPM measured at 2,200
    what would the correct Ph to feed at and prep my soil?

    1. You want to check your water for chloramine Is Chloramine Toxic for Your Plants? Dangers of Chlorine

      I would feed at 7.5 for the first 4-5 weeks until dunks.

      1. Yes, I checked with my local water authority and as of the last time they updated chloramine is not in use!

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