Need a doctor
- Thread starter Leon1111
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Kassiopeija
Well-Known Member
check your pH, Mg can be locked out if too acidic... lightmix doesnt have much buffer in it... there's salty residue on some of your leaves that's not so helpful.
Old fanleaves wont heal back, just feed mineralically fron now on
TommyDumper
Member
You bet your sweet buds I saved these. Thank you
Nutty sKunK
Well-Known Member
Well to the OP here’s some help.
You suffering magnesium deficiency. Leaves won’t look better but won’t progress.
Give 1tsp per gallon of Epsom salts until symptoms stop,
Also introducing some calmag at 1/2 strength to balance out the magnesium.
You suffering magnesium deficiency. Leaves won’t look better but won’t progress.
Give 1tsp per gallon of Epsom salts until symptoms stop,
Also introducing some calmag at 1/2 strength to balance out the magnesium.
HydroKid239
Well-Known Member
Doug Dawson
Well-Known Member
My Favorite Doc. Oh and I almost forgot, BOOGER........
Water with Epsom+Cal mag you suggest?
The feeding I give them is at 6.6ph. 2L for 15L of soil. I think pH of soil has to be ok. I miss something that I can't figure out now.
Gin is my drink. I did foliar for the mag def. I used the same feeding in previous grow on glueberry og and did 1.2g/w. If I count the mold loss 1.3g/w. Now this shit happens. I am thinking to raise the light a bit and keep feeding as I do. But I cannot get out of my mind that is something wrong with PK.
Same feeding previous grow
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Nutty sKunK
Well-Known Member
Yes - you need higher Mag and cal in the fruiting phase as they demand more. Also NP and K hinder Mag/Cal. Since we up our P/K in flower we need to add our cal/mag to balance the nutrients.
Nutty sKunK
Well-Known Member
The leaves have the yellowing between veins of mag def but they also have this browning on veins. That is what confuses me.
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Nutty sKunK
Well-Known Member
those dead patches are ph fluctuations. Most times they are random and aren’t bothersome unless they keep spreading.
Sort the mag out then pay close attention - if those dead patches keep multiplying your pH/watering method might need looking at.
Kassiopeija
Well-Known Member
15l soil should hold approx. 5l of water... you are either watering not fully, or much too often... if the medium is too moist for a prolonged time then this can cause lockouts as well, esp. with Ca & Mg.
I'd use proper Epsom Salt for leaf application, I've even seen greening up of fanleaves in flower using this, but it was like RO + EC 1.0 in Epsom every second day, for a week, that's tough shit.
I was going to suggest the same thing - I water 5 gallon fabric in dirt every 48 hours, I use 1.5 gallons of water per plant. To prevent salt buildup, I do two rounds of half gallon each containing the Tiger Bloom (and Grow Big as needed) fertilizer, cal-mag, Big Bloom, Sweet and Sticky, PH down to 6.50. I then wait 30-60 minutes before I do a final half gallon with just Cal Mag and PH Down to 6.50, then vacuum the runoff water and dump down the drain.
The goal is 20% runoff water, at 6 gallons total that would be 1.2 gallons. I get at least a gallon of runoff between the four plants, every single time. You are much better off having too much runoff than not enough. I would much rather waste money on a little too much fertilizer washed down the drain, than locking out the nutrients by not watering to runoff.
I reduce the fertilizer the last two weeks of flower, but maintain the sugar, and just use plain water for the last week to completely flush the plants.
Does it work? This was my last batch, you be the judge:
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For 40days old 2L is enough. More than 2.5L starts runoff.
I give them 2L every 48 hours. More than 2.5L they have runoff. But is it safe Epsom foliar in flowering. Also Epsom + Cal mag?
Kassiopeija
Well-Known Member
but the pot isn't light at that time, you could save yourself some hassle and just let it dry out more, and observe a correct dry-water cylce. It is possible, when the rootsystem is fully established, entirely filling the pot, to water more often, esp. under strong lights, but seeing you have these problems it's best to stick to the standard rules.
It's not the Epsom that's problematic but rather the water and increased rH that may provoke mold....
Calmag in your water is enough, a good product should have a ca:Mg ratio of 3:1 - 2:1. One can add a bit of Epsom when the plants call for it, but it's more easy for plants to just stick with what works. Constantly changing stuff does more damage than good IMO...
Greets
Yeah, 20% runoff guarantees the old nutes gets out of the pot... plants don't always take in all of that stuff, they have some minor selective control and the roots can also "spit out" excess/unwanted stuff back - which shouldn't accumulate in the root zone.
Well done!