MIMedGrower
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what was your ph at last feeding?
Like @MIMedGrower said Ca is not very mobile so all calcium deficiencies will show in the top of the plant first. Mag is mobile so the deficiencies will start at the bottom of the plant. Most often its another factor as he said messing with the availability of the other rather than a true lack of, PH, root health, temps, lighting, humidity, nutrient ratios all have an effectaqua
u don't think the calcium pics, better depict his pics?
these two have eons more experience n knowledge so pay no mind to the schizo
and they know ur medium, better, if not the actual strain.
No mention of base nute feeding. and adding more lime to pro mix is likely too much.
Calcium is immobile for the most part. Deficiencies show in newer and upper leaves first.
Magnesium is mobile and deficiency shows on lower leaves like the pics here.
However mag is in most nutes and in tap water and the soil so deficiency is usually caused by another factor.
I think possibly watering too often or incorrect fertilizing started it and too much lime is making it worse.
The lime takes a week or two after wetting to activate. Then it keeps working to raise ph.
For me pro mix has been ph stable at about 6.2 consistantly. If i see the runoff ph drift it is because of nute buildup or another factor with the plants.
Here is a good chart that shows nutrient interactions but as @MIMedGrower said it can be a lots of things causing it.med... semantics, but i had to c/verify for myElf
Here is a good chart that shows nutrient interactions but as @MIMedGrower said it can be a lots of things causing it.
View attachment 978815
Its a good place to start but changing to much in a short period of time will leave you more questions than answers. I don't think I would have added the lime. I think a feed with enzymes at the time would have helped rebalace the soil. But im not a very experienced soil grower. @MIMedGrower has a lot of experience in itI'm reasonably satisfied that I treated the problem effectively lol despite my cal/mag confusion. Leaf reading is something I'm just starting to get a knack for.
Am I wrong thinking cal and mag are issues are usually indicating the same, bigger issue? (pH)
Thanks, I suspect I got an off bag of pro mix, I've never had this issue with it before. Before adding the lime over a week ago my leach was coming out around 4.0 from new substrate... Naturally, I freaked. Lol
Base nutes. pH perfect m/g/b (I know, I'm planning a switch to remo in the fall) 8 ml per gallon/50% strength. That's where that line maxes out for me.
I supplement 4 ml per gallon calmag every feed, and cannazyme 5 ml per gallon. Aside from that. Phytoplankton, 5 ml per gallon once a week in veg, and bio root, 2ml per gallon for transplants only.
Calcium/magnesium uptake are tied together correct? It all goes to pH.
I water with discipline. She dries out completely between, 1.5 liters day one to a 3 gallon pit, 0.5 the following day. Substrate is never fully saturated.
I agree with this. It looks like high Ca. See the lighter growth on the tops? Then look at that chart. High Ca can affect Iron, zink and Mg So that would fit the bill.Ok. These are my thoughts from this post.
First pro mix is packed dry in the bale. It takes a week or two of tap water to charge and activate the lime before it will read above 6. Thats my experience and it is on pro mix website as well.
50% of base nutes with a full dose of cal mag and the other stuff would certainly be too much for my plants and cause lockout. That is what is happening to your plant in my opinion. Too much nutrients and additives are blocking the roots from uptake. Just excess calcium can cause this.
And no calcium and mag are not related except a proper ratio of 4:1 is recomended for easier uptake.
Now in my opinion it is necessary to saturate the medium to good runoff to be sure no dry voids exist. Then wait til the pot is dry at least 3/4 down before watering to saturation again.
I would flush out with fresh water only until the runoff was clearish and had an ec of no higher than 1.2 and let the plant recover before raising nute strength again.
And i would drop all additives and only feed the base grow nute before loading her up again. Im not a fan of boosters and such. Proper feeding with a complete balanced base nute has always worked well for me.
it canI'm reasonably satisfied that I treated the problem effectively lol despite my cal/mag confusion. Leaf reading is something I'm just starting to get a knack for.
Am I wrong thinking cal and mag are issues are usually indicating the same, bigger issue? (pH)
Ok. These are my thoughts from this post.
First pro mix is packed dry in the bale. It takes a week or two of tap water to charge and activate the lime before it will read above 6. Thats my experience and it is on pro mix website as well.
50% of base nutes with a full dose of cal mag and the other stuff would certainly be too much for my plants and cause lockout. That is what is happening to your plant in my opinion. Too much nutrients and additives are blocking the roots from uptake. Just excess calcium can cause this.
And no calcium and mag are not related except a proper ratio of 4:1 is recomended for easier uptake.
Now in my opinion it is necessary to saturate the medium to good runoff to be sure no dry voids exist. Then wait til the pot is dry at least 3/4 down before watering to saturation again.
I would flush out with fresh water only until the runoff was clearish and had an ec of no higher than 1.2 and let the plant recover before raising nute strength again.
And i would drop all additives and only feed the base grow nute before loading her up again. Im not a fan of boosters and such. Proper feeding with a complete balanced base nute has always worked well for me.
it didn't occur to me, besides cmag... that i could actually read tea leaves, until i lost the heart to grow and just embraced neglect...I'm reasonably satisfied that I treated the problem effectively lol despite my cal/mag confusion. Leaf reading is something I'm just starting to get a knack for.
Am I wrong thinking cal and mag are issues are usually indicating the same, bigger issue? (pH)
2-3 lessons, here, too... friggin pot guru/genius. if ur mind- n memory was a purchasable book...Ok. These are my thoughts from this post.
First pro mix is packed dry in the bale. It takes a week or two of tap water to charge and activate the lime before it will read above 6. Thats my experience and it is on pro mix website as well.
50% of base nutes with a full dose of cal mag and the other stuff would certainly be too much for my plants and cause lockout. That is what is happening to your plant in my opinion. Too much nutrients and additives are blocking the roots from uptake. Just excess calcium can cause this.
And no calcium and mag are not related except a proper ratio of 4:1 is recomended for easier uptake.
Now in my opinion it is necessary to saturate the medium to good runoff to be sure no dry voids exist. Then wait til the pot is dry at least 3/4 down before watering to saturation again.
I would flush out with fresh water only until the runoff was clearish and had an ec of no higher than 1.2 and let the plant recover before raising nute strength again.
And i would drop all additives and only feed the base grow nute before loading her up again. Im not a fan of boosters and such. Proper feeding with a complete balanced base nute has always worked well for me.
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