Thanks in advance! I’m in week 4 of flower. Photos show my leaf problem. Growing indoor in coco under a Mars Led, all Botanicare nutes, (Bloom currently). 3mm cal mag each water. Ph is always adjusted to between 6 and 6.5. Highest temp is 80. Lowest is 65. I water when the grow bag pot feels light and coco feels dry under 1st knuckle test. Was thriving until today. Plant itself is not droopy or affected…yet. Lovely flowers. I see the very tips show possible nute burn. I can cut back, but I only give half recommended dose. I will probably flush if no one responds. Also, I suspect the led light may have been too close? Could this be from that? There is nothing else I can point to. The pics aren’t as clear as I hoped. It’s like the leaves are darkening and the area around the veins are green, but lighter than when healthy. I also raised the led light. If you have a thought, please chime in. Could someone send a link to that poster that shows all the leaf problems? I can’t seem to find it. Thanks!
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The link is at the top of this page just click on "Plant Problems" in the green bar.
How about a pic or 3 of the whole plant?
What genetics?
From here looks like fall colours. -
Coluld be either an Iron deficiency or spider mites.Comment
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4th week of flower I'd be stopping calmag suppliments and replacing with PK suppliments and I'd be a bit tighter on pH, maybe 6.15 to 6.3.
Don't bother with the knuckle test on the coco. Water it twice a day if in a decent size pot and allow for a bit of runoff a few times a week. 10% to 20% of what goes in should be fine.
I flush my pots to clean out excess salts prior to flipping also,but I dont go overboard to minimise stress.
Reduce light levels until you have sorted the leaf symptoms
Flower Room: 11' x 7' x 7.5'H, 480w AC, 13gal/day dehumidifier, 1.5gal ultrasonic humidifier, 60gal (27gal usable) nute tank, 16" pedestal fan & 18" wall fan. Lighting and climate automated. Hand watering.
Veg Cupboards: Two 4x2x6H cupboards. SF2000 Evo in one SF7000 in other. Climate controlled and automated. Hand watering
Aeroponics Low Pressure Bucket: 20W LED. 5 clones & 20W LED 11 clones
Lights: Mars Hydro FC-E1200W, SF-7000, SF-2000 evo in flower room.
Medium: Coco/perlite, 7.2gal pots, no drains
Current Grow: 5 x Photos Franklin's Orange Zkittles x Sour Diesel in flower room, 3 Franklin's White Widow x Sour Diesel Clones, 13 x Orange ZkittleZ x Sour Diesel clones in Aeroponics buckets x 2.
Last Grow: A mixComment
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4th week of flowering seems early to be going this dark. But, yeah. More porn. We need the weed and the warts.
I also use Botanicare. One, half strength nute'ing beginning about 10 days above coco, full strength after, when the pots are light. A little more than full strength if they can handle it. Not dry light. Just light. Maybe every third day my 5-gallon bags get one gallon of liquid. I do not understand why people use less than recommended nutes unless they are showing toxicity. Letting coco go dry is not as good as keeping it a bit damp. Plants get nothing from dry coco.
Forget the knuckle test.
If I ever get that coloring, it is early veg or late stage flowering. I'll call it closer to 6 weeks for LSF autos.
So, maybe, early LSF because of only half nutes.
Bluey Water twice a day??? Why do you stop CalMag? Salt buildup in coco? Never had an issue with salts.C'mon, mule!
Coco/perlite
3x3x6Comment
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I'm going to consider your calmag argument. I don't know any different so I'm going to backoff on this grow. See what happens. Always looking for a tweak. -
Dont you understand why people use less than recommended nutes?
There are 4 ranges for nutrients concentration; Insufficient, sufficient, luxury and toxic. In the sufficient range, plant grow optimal with minimum waste of nutrients. In the luxury range plant grow the same as sufficient range but nutrients waste is high. Manufacturers want you to run out of their products as soon as possible so what they recommend you is in luxury range. -
Although too much nitrate can reduce P uptake because of common charge effect but this effect is not strong enough to cause P deficiency. Too much calmag can reduce P uptake but it is not because of just nitrates they have. It is because of precipitation of phosphorus containing compound called calcium apatite at higher pH which can be enhanced by pH raise caused by reduction of ammonium:nitrate ratio by calmag formulas. So reduction of P uptake is the fault of Ca and pH not nitrate although nitrate can effect pH.
One more thing to mention is that calcium and phosphorus deficiency appear as irregular shape of necrosis. So this deficiency is neither P nor Ca deficiency.Last edited by ZiroOne; 07-06-2024, 02:59 AM.
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Nutrients disorders are tricky and hard to diagnosis by eyes specially when only some leaves are given without knowing which part of plant they are from and how disorders are in progress and spreading. You have taken from me many data which can help diagnosing this disorder.
it is a necrosis not chlorosis. So it is not iron deficiency at all if you ask me and im sure it is not light stress. I don't think it is a macro element deficiency so fortunately it is not going to reduce your yield much.
All together, even with this limited data, i can still guess it is #copper deficiency. If this is the case the 1st thing you have to check and fix is pH.
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Less food, less energy, less growth.
If I can add more nutrients than recommended, I am pretty sure the recommended dose is not a maximum dose the company wants me to use to use up my stock quicker.
Go with recommendations and adjust from there. Or be a man and do not worry about directions. Real men do not follow directions. C'mon, mule!
Coco/perlite
3x3x6Comment
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Just as you grow from experience, so do I. Being one of them thar newbies, I like to follow directions until I find the directions inadequate. Manufacturer's directions, their baseline, not an amalgamation of what I read online. That comes later.
This website is Grow Weed Easy. Not Grow Weed after checking the VPD, EC, PPd, Lmk, adjusting the flavin, and doing three verses of the Hokey Pokey Dance.
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Complications arise from false propositions and that fallacy was one of them.Comment
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All plants are not created equal, nor do all plants require the same nutrients. Right. I got that.
Non-plant specific fertilizers are tested on a pantheon of plant species and manufacturers give general information on how to use their products.
If a company is making false propositions about their product, they are encouraging people to kill their plants. That pretty much removes their client base and puts an end to the company.
I'll bet a shiny new nickel than in general, plants that eat less will be smaller plants and have deficiency. In general.
C'mon, mule!
Coco/perlite
3x3x6Comment
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Do not move and displace words. That false proposition is yours not companies. No company has said 'more nutrients, more growth' as far as i know. Luxury range doesn't kill plant. Generally In the luxury range of nutrient feeding plant grows the same as sufficient range but with high nutrient waste. More uptake doesn't always mean more yield. Toxicities come from excessive uptake
because plants uptake as much as they can. In the nutrient-yield graph, luxury range is a LONG horizontal line. You know what all these mean? You can artistically use double, triple and even more than sufficient amount without gaining more yield.
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You are wrong, ZiroOne. I have told no one what to do. I have not moved or displaced words.
My initial comment that got you so worked up was, "I do not understand why people use less than recommended nutes unless they are showing toxicity." There is no false proposition in that. That is a statement. I further went on to describe my own experience. Still, no false proposition. Not even a personal recommendation.
I further went on to say recommendations are a baseline based on research. There is no false proposition in that, either. That is a fact.
You are a conspiracy theorist who thinks companies are out to get you. Go put on your aluminum hat. You'll feel better.C'mon, mule!
Coco/perlite
3x3x6Comment
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My bad, Bluey. Companies are out to get you. Just you.
That email you just got. I strongly suggest you open it and click the link. Have your personal information ready.
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And further comments about 'in general'. Also the comment about how I give more of the same nutrients in the same medium. This thread started with a specific fertilizer in a specific medium.
It is illogical to take an aspirin to avoid a headache that probably won't happen if you know your triggers.
"Manufacturers want you to run out of their products as soon as possible so what they recommend you is in luxury range." That was your comment. How about that plus, "... but not at the cost of killing your plants." If I give one of my plants half the nutrients I give another, I will have different sized plants.
Spanky, buddy. Still with us?C'mon, mule!
Coco/perlite
3x3x6Comment
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You know what luxury range means? It means if you feed your plant double than sufficient amount, then, although your plant remains healthy but, if you don't get less yield you won't get more. It also means if you cut your feeding in half when it is double than sufficient amount then if you don't get more yield you won't get less.Originally posted by Gingerbeard View Post
I think we talked about it too much.Comment
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Looks like the beginning's of a K deficiency to me and the timing is about right to use a PK booster. When in doubt I check the Sap PH level and the Brix. In hydro they are easy to adjust with quick results, I am not sure about soil grows
Attached FilesComment
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https://www.horiba.com/int/water-qua...n%20pH%20meter. Is the meter I use
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Sooo... if I want the best I can get using their product, I should start with a dose based on their research. Then go out and buy more of their product because I fell for their false propositions.
I fell for it. I goddamn fell for it like a something-something. I'll have to find another product that lets me guess what I need.C'mon, mule!
Coco/perlite
3x3x6Comment
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Edited: Fan leaves fade is all i see. Wheres the rest of the plant?Comment
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