Activated EM1 and PH

Tyleb173rd

Well-Known Member
I’m trying to narrow down some issues with my ladies. Several months ago I switched from tap to RO water and since then I’ve been having issues. When i first used it I was supplementing with Cal Mag at 1t per gallon. That didn’t last long because I thought how could that little bit of calcium and magnesium in my tap water make a difference to my garden...so i stopped using it. Instead i added a little extra oyster shell and supplemented occasionally with molasses.

At the time I stopped using the calmag I also began using homemade activated EM1. I made it according to the directions. The PH dropped to 3 something as suggested. I use recharge in veg and start mammoth P a week before flower at full strength.

So this morning I decided to check ph of my plain RO water (fluctuates) with the addition of calmag and mammoth p (4.7)and the runoff of two plants who show some signs of issues (6.4 and 6.7). None of those readings seem off except for the PH of the water going in.

Here’s my amateur diagnostic possibilities:
1. The plants are deficient in Calcium or magnesium or they are locked out.
2. The full strength Mammoth P has caused issues with my recycled soil, potentially causing a phosphorus overload and locking out mag.

So for the last two weeks I’ve only been giving all plants, no matter the stage in life, pure water. But just today I decided to use the em1 and mammoth p again just so I could test the runoff.

Here’s a pic of the damaged leaves towards the end of the deficiency. First, the damage looks like a mag defeicency with the yellowing and discolor between the veins. Then slowly the little yellow brown spots turn into the picture below.

Thanks
Tyler

Edit...before i get hosed with checking ph of soil and such this is the second time I’ve recycled this soil. There’s always a chance that I jacked something up in the mix.
 

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gr865

Well-Known Member
I’m trying to narrow down some issues with my ladies. Several months ago I switched from tap to RO water and since then I’ve been having issues. When i first used it I was supplementing with Cal Mag at 1t per gallon. That didn’t last long because I thought how could that little bit of calcium and magnesium in my tap water make a difference to my garden...so i stopped using it. Instead i added a little extra oyster shell and supplemented occasionally with molasses.

At the time I stopped using the calmag I also began using homemade activated EM1. I made it according to the directions. The PH dropped to 3 something as suggested. I use recharge in veg and start mammoth P a week before flower at full strength.

So this morning I decided to check ph of my plain RO water (fluctuates) with the addition of calmag and mammoth p (4.7)and the runoff of two plants who show some signs of issues (6.4 and 6.7). None of those readings seem off except for the PH of the water going in.

Here’s my amateur diagnostic possibilities:
1. The plants are deficient in Calcium or magnesium or they are locked out.
2. The full strength Mammoth P has caused issues with my recycled soil, potentially causing a phosphorus overload and locking out mag.

So for the last two weeks I’ve only been giving all plants, no matter the stage in life, pure water. But just today I decided to use the em1 and mammoth p again just so I could test the runoff.

Here’s a pic of the damaged leaves towards the end of the deficiency. First, the damage looks like a mag defeicency with the yellowing and discolor between the veins. Then slowly the little yellow brown spots turn into the picture below.
At what rate were you using the EM1, I use it weekly during a weekly drench.
Thanks
Tyler

Edit...before i get hosed with checking ph of soil and such this is the second time I’ve recycled this soil. There’s always a chance that I jacked something up in the mix.
When you are using RO you have to get the water to except the Base nutes. I spoke with Canna a few yrs ago as my tap water sucks and I was have issues using RO. They suggest add 120 ppm of my tap, but instead I add Epsom and Cal/Magic to get the ppm to 120. No issues since.
 
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