Can you identify this deficiency?

Macintyre22 · Jul 8, 2020

The plant (Cherry Pie) is 5 weeks old, being grown indoors. Using Advanced Nutrients (micro,veg,bloom) as instructed with a PH of 6.5

spek9 · Jul 8, 2020

Can you please post a full plant picture? That's Potassium deficiency by the looks of it, but a whole plant pic will provide a more complete picture.

Also, what medium are your plants in?

Macintyre22 · Jul 8, 2020

spek9 said:
Can you please post a full plant picture?

Also, what medium are your plants in?

They are in soil

spek9 · Jul 8, 2020

Macintyre22 said:
They are in soil

Which soil? A lot of new growers say "soil", but really it's coco or peat or a blend of both. It matters very much.

lime73 · Jul 8, 2020

What water you using? Ppm/ec of water before nutes added?

Macintyre22 · Jul 8, 2020

spek9 said:
Which soil? A lot of new growers say "soil", but really it's coco or peat or a blend of both. It matters very much.

spek9 · Jul 8, 2020

Like I thought...

Lightweight, sphagnum based peat growing mix with added Mycorrhizae for added root support

You're in K lockout due to too high a pH.

Drop your pH to 5.7-6.2 in peat. For the first couple watering, ensure it's at 6.0 or a point under (ie. 5.9). This will ensure that K will be uptaken.

Macintyre22 · Jul 8, 2020

lime73 said:
What water you using? Ppm/ec of water before nutes added?

I'm using Brita water, I add the nutrients and then adjust the PH with a ph meter and ph up/down if needed, but the nutes I'm using on this grow are from Advanced Nutrients with "perfect ph". My last 3 grows have been done this way, only difference is I spent a little more on Nutrients. I used to use RootFarm nutes

Macintyre22 · Jul 8, 2020

spek9 said:
Like I thought...

Lightweight, sphagnum based peat growing mix with added Mycorrhizae for added root support

You're in K lockout due to too high a pH.

Drop your pH to 5.7-6.2 in peat. For the first couple watering, ensure it's at 6.0 or a point under. This will ensure that K will be uptaken.

Thanks a lot man, I will give that a try! The ph after nutes is usually between 6.3-6.6, I will lower it and hopefully that does the trick. I really appreciate the help/feedback

lime73 · Jul 8, 2020

You will need to add cal mag to filtered water. Is your tap water bad? What is ec ppm of tap water?

Macintyre22 · Jul 8, 2020

Im not sure, I will get a ppm meter to find out. What's getting me is that my other tent is using the exact same medium and nutes and they are looking healthy

spek9 · Jul 8, 2020

Macintyre22 said:
Im not sure, I will get a ppm meter to find out. What's getting me is that my other tent is using the exact same medium and nutes and they are looking healthy

Then modify the pH of only that one plant for now, and see how it, along with the other current healthy ones behave.

Can you identify this deficiency?

Macintyre22

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