What deficiency is this ? Please help !

[Yesyes3000]

Hello this just started popping up on some leaves on one plant under qb132. Using beastie bloom 3/4 teaspoon per gal and calmag at 1 teaspoon per gallon as of recently. Also it is in 4 gallon cloth pots with roots organics soil. Thank you for your time

My thought was maybe calmag def

 

[Jypsy Dog]

Could up the Cal/Mag a bit. Foliar feeding with the lights out will be a faster aid.

 

[Renfro]

Not familiar with the beastie bloom.

Are you using RO water?
Whats your pH running?
Whats the feed PPM?

Magnesium is difficult for the plant to uptake when the pH is too low. Adding more cal mag may be the solution if the pH is good. If adding more cal mag doesn't work then the pH is likely too low.

 

[Nizza]

beastie bloomz is 0-50-30
I don't use it but I have seen people who have used just this and they always say they don't use much at all. When they have used alot they end up with toxicities in their plants

I think you should only use a little of that in conjunction with another food

 

[Renfro]

beastie bloomz is 0-50-30

yeah but what else? like calcium, magnesium and micro nutrients?

Don't get too heavy with the bloom formula as too much potassium can lockout magnesium. Plus too much phosphorous in later flower will reduce quality (flavor).

 

[Renfro]

If the beastie bloom doesn't have any calcium or magnesium and you are using RO water then you need at least 5 mL/gal of cal mag IMO.

 

[Yesyes3000]

New rick and mortyyy very soon
But I am useing water from the faucet and I ph adjust to 6.2 and I don’t know my ppm I have to check my runoff. First I need to calibrate my new ph meter and the ppm meter I just got

 

[Yesyes3000]

But it does look like nitrogen toxicity or calmag right ?

 

[Renfro]

Raise the pH to 6.5. I had similar magnesium problems at 6.3, raised the pH to 6.5 and it went away. Wasn't an issue in veg but in flower the need for feed goes up and the problem with uptake wasn't allowing the plant to get at the magnesium.

That said, you may or may not have enough magnesium. Look at the beastie bloom label and see what the percentages are, maybe post a pic here. Lets quantify how much magnesium you have aside from what may be in the water. Whats the tap PPM? Too much calcium in the tap water can cause issues with magnesium uptake.

 

[Yesyes3000]

Raise the pH to 6.5. I had similar magnesium problems at 6.3, raised the pH to 6.5 and it went away. Wasn't an issue in veg but in flower the need for feed goes up and the problem with uptake wasn't allowing the plant to get at the magnesium.

That said, you may or may not have enough magnesium. Look at the beastie bloom label and see what the percentages are, maybe post a pic here. Lets quantify how much magnesium you have aside from what may be in the water. Whats the tap PPM? Too much calcium in the tap water can cause issues with magnesium uptake.

Great ! Thank you for your time and pic incoming

 

[Renfro]

Yes the dark green does indicate there is a lot of nitrogen.

 

[Renfro]

Know that cal mag brings some nitrogen. Epsom salt may be a better way to get more magnesium, especially with calcium in the tap water being a possibility.

 

[Yesyes3000]

Here the beastie bloomz

 

[Yesyes3000]

And the cal mag I use

 

[Yesyes3000]

The soil I’m useing is a mix of promix and roots organics and a little bit of left over green gold basic... so it was probably 1.5 cubic feet of promix and 1.5 cubic ft of Roots Organics and like .3 cubic foot of green gold basic

 

[Renfro]

Ok, so the beastie bloom is not bringing any magnesium or calcium to the party. The calmag of course is bringing calcium and magnesium, also nitrogen.

If the tap water has calcium and it probably does then I would go with epsom salt to get the magnesium. Make sure the total PPM isn't too high after adding epsom salt at 1 gram per gallon. pH to 6.5 and try that.

 

[Renfro]

We need to know the PPM of the tap water. If the PPM is high, we may assume calcium is the culprit thus we may wish to drop the calmag and just use epsom.

 

[R Burns]

This is Phosporus and calcium deficiency. The dark green is the beginning of the P deficiency, as well as the purple leaf stems. The yellowing is it progressing. The rusty spots are the cal def. The products you are using have plenty of both. So this is likely an issue of low ph. Both P and cal need ph in the mid to high 6s to be used properly. Doesn't matter what ur water ph is. Its the soil ph that matters. Soil ph in veg, best at 6.4/6.5. Soil ph in flower, best at 6.8.

 

[Nizza]

Phosphorus excess
A phosphorus excess affects the plant by causing a massive nutrient lockout of other elements like calcium, copper, iron, magnesium and zinc, being zinc the first micro-element to get blocked. In this way, we must check for deficiencies of other elements to correctly diagnose a phosphorus excess and to know how severe it actually is.
If we detect an excess of this element we should flush the roots with at least three times of water than the capacity of the pot. There are products to break down salts to ease the flushing of the roots, which should be always used with an adjusted pH level depending on the life stage of the plant.

i got this from here https://www.alchimiaweb.com/blogen/deficiency-excess-phosphorus-cannabis-plants/

but I don't feed with that type of ratio so I really have no first hand experience with this issue
my rule of thumb is around 3-1-2 in veg and 2-1-3 in flower. Sometimes I'll add a feed like this during a certain part of flowering but never would be the only thing I feed it

 

[Renfro]

This is Phosporus and calcium deficiency.

I doubt that he is lacking Phosphorous with the beastie bloom.