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Removed started grow question 4 years ago
You guys have any idea what this deficiency/burn could be from? The last few days I have been giving basically just PK and minute amounts of the mineral powderfeeding mix. Maybe 3-4 leaves were affected in total, around these spots the leave were soft and dark as if underwatered.
One Ring to Rule Them All
16 weeks
One Ring to Rule Them All Ganjalf
41 comments · 4 years ago
Week 12
Leaves. Other
PharmaZ answered grow question 4 years ago
All of the above solutions are correct. But I will give you an idea of why you may be having some issues.
I had to read through your delightfully informative notes! That helps!

You’re using a 60/40 soil+compost - perlite mix. I’ve had problems with a mix like this. The reason is that coco holds onto nutrients easily, soil has an organic property, so it’s breaking down leftovers slower. Combine all that with a good aeration medium like perlite. Your PH will be imbalanced and your medium is holding onto nutrients the plant can’t use.
I would advise as others have to flush.

When you do your FLUSH, start with a big dose of warm water, the same volume of the pot/soil e.g. 10gal.
Wait 10 mins for the water to dissolve leftover nutrients.
Then with another 2x volume of pot In water flush a second time to remove dissolved nutrients.

Now moving ahead the next time you water after this flush you can continue your feed of micros and bloom nutrients go easy, feed 1/2 strength. You will have enough mobile nutrients to get you to the end.

In my estimation you have 6 weeks left 4 weeks of bud growth and a 2 weeks flush. Good luck:v::skin-tone-2:
Lou_Grows answered grow question 4 years ago
Nutrient burn! Flush her right away plain ph'd tap water will do the trick.
FlavoursUk answered grow question 4 years ago
I'd personally give it a maintenance flush as you can afford too. Within a day or so, you'd see her perk up. You can see how she responds to that, and if still ok continue with plain pH'd water. When and if you go on the nutrients, start at half, maybe quarter strength of recommended dose. Only use the nutrients if plants begin showing deficiencies or as a little booster to encourage growth, but don't use it all the time. For every nutrient feed, give two normal plain waterings. Also, it looks to me like leaf spot fungus starting on the affected leaves.
Removed answered grow question 4 years ago
It looks like nutrient burn due overdose. Your leaves are really dark green too, which is a sign of nitrogen overdose. Stop feeding and give it platinum water