dry and yellow bottom leaves questions to experts
- Thread starter steelwool
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Burned leaves that are claw shaped are very bad, but those are not burned. Nutrient burn causes leaf curl, burn, and brittle leaves. If you insist on looking for negatives and problems to fix, you will always be right. You will end up creating problems and negatives by meddling.
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... the guys have it right Steel', this is just a little N defc. happening, normal for this stage,... the plant is tapping into reserves on those lower fans; if it's progressing fast, you can add a little extra grow nutes to the bloom, but do mind your overall inputs... I see the classic tip burn from mild overfertilization; did that happen recently? If so, dilute the dosage down,... what brand are you using, dosage, and frequency of feeding? --need that info to dial things in,.........Hal', only N toxicity causes the clawing, not general fert. burn,... N is processed very differently from the other nutrients, so symptoms are quite different from other nute's....
Actually i have my feed schedule at the start of this thread [emoji13]
You think it needs some cal-mag suplement?
The tip burns have been there for a while, thats why i started the thread, cause it looks like tip burns at top, but bottom leaves are drying out.
but from what i understand it is kinda normal, so im trying to not dwell about it....... but ofcourse i do [emoji12]
@ Waira, he has been using grow base nutes up until now. That is why I was saying I doubt he over fertilized or had N deficiency. Those dry tips look like my little test tent does usually. It is a tiny bit of heat stress and dryness that causes that for me. Especially when I use LEDs with IR diodes.
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LOL! --Steel', right! I lost that in the blur of all the other cases popping up suddenly!.... Biobizz is nice stuff, and mild, which puzzles me as to how you got a wee touch of nute burn, and are now a little N defc.,... My understanding is that annuals like cannabis can store much of the N they'll need for life, before they start blooming, if there's enough around to load up on,... N-tox often happens because sources like nitrate, NO3-, are taken up automatically, whether the plant needs it or not! After time, it can accumulate to the point of toxicity, even though the dosages may have been the same,... this isn't your issue, of course, so with such low N content in the feed, likely the plant just didn't get to tank up like it could have,.. I also recommend getting a higher PK bloom booster; tons of choices,except for for organics, far fewer-- Roots Organic makes one called HPK,... with Biobizz line of nute's, it's harder to tinker with because the whole line-up is so mild,... a little extra N during bloom isn't going to mess with things, as long as the NPK ratios are still bloom stage proportioned..but this is hard to do in the Biobizz line... that's one reason why I suggested a higher PK product,.... ....The Alg-a-mic should have Ca and Mg in it..? --check the label, or write Biobizz to make sure if the labeling doesn't say,...
-- Hal, sorry, I don't agree with that,...low RH, high T, and overly strong light intensity issues don't cause top to bottom tip browning, on nearly every leaf,... I see zero signs of such stresses on even the upper leaves....
Hi hal,
Thanx for the input. My tent temperatures is around 20-21 degrees celcius, and humity kreeps up to around 65% during the day, but as soon as i open a window in the room,"im 10 min, the humity level comes down to around 42-44% .
I try to keep the humity as low as possible now, i guees it is recomeded less humity in flowering stage
Since this is my first grow, maybe i didnt feed her right ammount because, i in some feeds didnt give water untill 10-20% run off. After i saw anout 3-5% run off i stoped. Could this be the problem maybe?
Also i dont check the ph of soil or water. I use bottled water for the plant.
Since this is my rookie grow, i thought the ph checking could have been a little confusing. Thats y i only used organic fertilizers this time.
Also with the feedings, i just input the ml value that i feel is right. Ofcourse i look at the biobizz feed schedule advice for autoflowers.
But the whole npk thing is a mystery to me,
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