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Leaves dying, spots, yellowing. Different plants.

krewgrew
krewgrewstarted grow question 24 days ago
I have some lesions on my plants that I don't know what is causing them. Soil: 50-50 Terranova professional plus - BioBizz Allmix Im Using the Biobizz lineup(all). Nute lockout or nute deficiency? maybe something else? VPD, DLI, Watering all kept in check. 3 different plant.
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Organoman
Organomananswered grow question 23 days ago
This is what happens when you grow multiple plants and just give them one mix of the same fertilizer to each plant and don't react to what each individual plant is telling you. Every plant will have its own requirements and you need to feed accordingly. Just giving every plant the same thing and hoping everything will be ok, does not work. Pic 1 - multiple plants, multiple issues Pic 2 - burning from over feeding in general, but otherwise ok Pic 3 - this plant has at least a nitrogen deficiency and probably wanting extra P and K at this stage Pic 4 - this plant looks ok Pic 5 - this plant is hungry for both P and K Pic 6 - this plant has suffered over feeding but is now starving for both P and K Symptoms take weeks to get to this level of obviousness, adjusting your feeding to tailor it to each specific plant 2-4 weeks ago would have prevented this level of damage............ask questions sooner rather than leaving it to deteriorate this long if unsure in the future.
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Soil_Chef
Soil_Chefanswered grow question 23 days ago
a yellowing of the leaves is common to start around the 6 weeks into flowering as the plant depletes its nitrogen stores and focuses its energy into bud swelling and trichome production on the flowers with phosphorous and potassium in the soil
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NoVC01
NoVC01answered grow question 23 days ago
If your now on the phosphorus side (flower) of your nutrients, and pretty far into flower stage, this might just be autumn in your garden!
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Spike_KCanG
Spike_KCanGanswered grow question 23 days ago
Hi. I use the BioBizz lineup as well. How much BioGrow and CalMag are you feeding them? It looks like a deficiency of Nitrogen and Cal/Mag. Also how much are you feeding from the rest of the lineup?
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John_Kramer
John_Krameranswered grow question 23 days ago
NPK def
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00110001001001111O
00110001001001111Oanswered grow question 24 days ago
The paling from bottom-up is nitrogen deficiency. I'd bet the house on this one. It's easy to diagnose. Picture #2 here is something different. Not as confident diagnosing that one.. could be Ca deficiency, but the pattern is a bit odd for that.
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Sators
Satorsanswered grow question 24 days ago
The bottom leaves are turning yellow, which is a typical sign of maturity. At the same time, the plant is likely seeking phosphorus to develop more dense buds. If you have some bat guano, I would advise applying it as a top dressing for improved results. The flowering is impressive.
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