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Can someone let me know deficiencies I’ve got?

Closet01
Closet01started grow question 4 years ago
Leaves showing some bad signs even tho feeding cal mag every water. Have been feeding every 2nd day but 2 out of the 4 plants have curled and showing some bad signs.
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Week 8
Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Curl down
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Organoman
Organomananswered grow question 4 years ago
Judging from your pics, you seem to have a few issues going on. With any half reasonable soil mix, there should be enough nutrients for 4-6 weeks at least. So I would say, too much ferts, too much water and too much calmag. Also another thing I noticed is that there are some old/pulled leaves on the top of the soil in your pots. This can cause fungal diseases to form and judging by the black spots on your leaves, they seem to have that too. So I would say, ease up on the fert, give calmag every 10-14 days, wait until the top 2 inches of soil is dry before watering and make sure to remove any fallen or dead leaves from your grow area, as these are just waiting for fungus to grow on them. Hope this helps.
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Closet01
Closet01answered grow question 4 years ago
Thanks everyone for your answers, have flushed the plants and have started holding back the Cal Mag from every day to once every week for now. Also check PH of the soil and have got it back to 6.2-6.4. Back to feeding half bloom nutes to help them kick some decent buds out! Appreciate all the fast response guys.
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ZombieKushAddicted
ZombieKushAddictedanswered grow question 4 years ago
always paying attention to what the leaves of your plant tell you... Leaves down (problems w nutrient) plus some burns in that form (nitrogen)💨
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RafaelRapidos
RafaelRapidosanswered grow question 4 years ago
Hello there Closet01, You are experiencing a later stage of Nitrogen toxicity. Flush your plants as soon as possible and watch your plant grow vigorously! Good luck with your project, I wish you all the best! 👽
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The8thChevron
The8thChevronanswered grow question 4 years ago
Most common problems you may be having are: nitrogen toxicity, wind burn, root issues, mite issues, nute lock and overwatering. Your fan leaves would likely be dark green if it was N toxicity. I do not think its that. Wind burn is easy to figure out. Are the leaves closest to the fan showing problems, but the ones further away look good? Root issues... well you'll have to wait and see or carefully dig them up which I DO NOT recommend. Mites? Do a careful inspection of every inch of the plant to see if you have any. Also tilt the pot to about 45° and give the side a thwap! Watch the topsoil closely and see if any root aphids poke their heads out. Nute lock-- test your EC in and out. If it's a lot stronger in the runoff, you probably have a lockout.
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Mosherd7
Mosherd7answered grow question 4 years ago
Hey. From the looks of it, it does seem like cal/mag issues, but you said you are supplementing already. Your pH is fairly high at 6.8 6.3 input would be optimal for flowering in soil. At 6.8 it might be locked out and not able to absorb those nutrients. This can also lead to a buildup in your soil. If you think there could be a buildup, I'd check your runoff pH and if needed, flush it. If you don't think there is a buildup, just try 6.0-6.3pH for a little bit to even it out. Maybe even no cal-mag until you see what happens. Good luck!
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Burmese
Burmeseanswered grow question 4 years ago
Hi there, I think you have Nitrogen Toxicity and Nutrient lockout.Have you been check your run off lately?I am sure your soil pH isn’t in proper range.May be higher than 6.5.Also your temp 30C cause the plant to take up more nutrient from soil which is abundant in your pH range.That’s why even though you feed, they didn’t get anything.Wait for soil to dry out first and then watered with at least 20% run off first.Check pH and ppm of your run off.If they are not in the proper range, start flushing with pHed water.Happy growing... ✌️
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