PICS - Can you help identify the deficiency?

Tuckatan said:

Do you guys ever get any burnt tips at those levels? Maybe I’ve been too cautious about over feeding!

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Hi Tuck,
Just make the increases slowly so that if you get a little tip burn...then just back off. You'll see those high PPMs with guys running CO2 all the time.

Back to K+ for a sec. I am restarting in new location and using coco. Been doing lots of reading. The deal with coco and K+ is that it's intracellular K+ that the coco is releasing...and not related to the CEC sites which should be filled with Ca++ and Mg++.

Older coco gives off more K+ and that becomes the limiting factor for how many times you can reuse coco.

I'm enjoying your thread and curious to see how the nute bump does...
Cheers,
JD

Tuckatan said:

Do you guys ever get any burnt tips at those levels?

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Not really, maybe a bit of yellow at the tips, but the overall vigor of the plant makes it worthwhile.

JohnDee said:

Hi Tuck,

Just make the increases slowly so that if you get a little tip burn...then just back off. You'll see those high PPMs with guys running CO2 all the time.


Back to K+ for a sec. I am restarting in new location and using coco. Been doing lots of reading. The deal with coco and K+ is that it's intracellular K+ that the coco is releasing...and not related to the CEC sites which should be filled with Ca++ and Mg++.


Older coco gives off more K+ and that becomes the limiting factor for how many times you can reuse coco.


I'm enjoying your thread and curious to see how the nute bump does...

Cheers,

JD

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Hi JD, thanks for your informative post. I was actually just looking at the reusability of coco, and see that it advises maybe 2-3 reuses, though I hadn’t seen why, so you have answered my question!

Are you also suggesting I may need a greater air exchange to couple with the higher PPMs? I run my exhaust at around 50% mostly (unless temps are creeping up) so have some capacity to increase, or would it need higher concentrations of CO2 in the available air rather than increasing air exchange?

I will keep you posted on how she takes to the increase PPM’s and report back here with pics and descriptions on what I have noted from the change!

Again, thanks to everyone who has posted, lots of very good information in this thread from you guys!

Hi Tuck,
Glad my post was useful...that's the goal.

First off I need to identify myself as a less-is-more kinda guy. I didn't confront Jimdamick because he seems to know what he's doing...for him.

And yes...if you can bump up air exchange just by turning a knob...that would bring in extra CO2 which would allow your plants to actually use the extra nutrients.

I read a thread about coco trees over on IC Mag by Don Juan Matus. Very professional grows and I doubt he ever goes above 800 ppm...and that is with CO2. No runoff. I am trying to emulate his grows on a smaller scale.

Your doing good dude...follow your instincts...
JD

Tuckatan said:

Fair play, Im going to up them now and see how she takes!

Do you guys ever get any burnt tips at those levels? Maybe I’ve been too cautious about over feeding!

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if u work ur way up you will be ok but then again i always get a mild tip burn like the ends have a little brown tip but thats all

rob333 said:

if u work ur way up you will be ok but then again i always get a mild tip burn like the ends have a little brown tip but thats all

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Doesn’t sound like the end of the world! Does anybody know if mild tip burn significantly affects growth? Or is it only when it worsens? For example, 2 identical plants, one with slightly burned tips, one without, what would the difference in growth be?

JohnDee said:

Hi Tuck,

Glad my post was useful...that's the goal.


First off I need to identify myself as a less-is-more kinda guy. I didn't confront Jimdamick because he seems to know what he's doing...for him.


And yes...if you can bump up air exchange just by turning a knob...that would bring in extra CO2 which would allow your plants to actually use the extra nutrients.


I read a thread about coco trees over on IC Mag by Don Juan Matus. Very professional grows and I doubt he ever goes above 800 ppm...and that is with CO2. No runoff. I am trying to emulate his grows on a smaller scale.


Your doing good dude...follow your instincts...

JD

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Yea, I was going for the less is more, but when I see great results with higher ppm’s it’s very appealing! I mean, clearly both ways work, so I guess it’s a case of quantifying whether the additional nutrients translate to increased yields.l, or enough of an increase to justify the additional nutrients.


I fed with an 850ppm feed, though I did mix up a 1050ppm feed but bottled it and diluted it back down to 850!


I’m going to stick with that for a few feeds, see how she’s looking and go from there. I guess if there is no adverse effects, no burned tips etc I could up it to around 1000 and keep my eye on it, see if I get positive or negative results and adjust from there. I’ve picked 4 buds that I’m photographing and keeping an eye on in particular, a couple with noticeable leaf symptoms, and a couple without.


I’ve upped my fan to max to hopefully provide more CO2.


I’ll keep you guys posted!

Hi all, just a quick update with pics!

I’ve had a deficiency, which looked like a phosphorous deficiency, amongst other deficiencies, though I believe what it actually was, was as I was feeding every other day, the coco was getting pretty dry on top, which gave me the same symptoms on my last grow. I now feed every day and the symptoms have stabilised and haven’t gotten any worse.

Also, one of the tallest colas, which unfortunately had a spell of being too close to the light, has gone very leafy, and not that frosty at the top. It looks like it overproduced leaves, and looks a bit cooked, there were two like this, though one didn’t get so leafy. You can see these in the last pic, the recovered one is at the back left, and the damaged one is at the front right (slightly obscured by the mrs holding tf a lighter!) worse one is also in picture two at the bottom right.

I feed at around 650 and 700, at around 5.8-6.1 ph and 17c, but every few feeds I go to around 900 but then back off to 650 again, as I did get quite burned tips from the 1000+ ppm feeds.

All in all she doesn’t look too bad. Feel free to give any feedback if you’re seeing anything that I’m missing!!

Cheers

Hi Tuck,
They look good to me. I'm more use to seeing less green at that stage...but that becomes almost a philosophical discussion.

Maybe that tall bud reacted to the light burn by adding a little new growth with the healing. Some strains do weird things at the end too. Foxtailing as an example.

If you're worried about P...make sure your ph swings enough to include the higher range that P absorbs best with. Other thing guys do is to add micros which help roots with P absorption.
JD

JohnDee said:

Hi Tuck,

They look good to me. I'm more use to seeing less green at that stage...but that becomes almost a philosophical discussion.


Maybe that tall bud reacted to the light burn by adding a little new growth with the healing. Some strains do weird things at the end too. Foxtailing as an example.


If you're worried about P...make sure your ph swings enough to include the higher range that P absorbs best with. Other thing guys do is to add micros which help roots with P absorption.

JD

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Hi John,


I thought they may be less yellow by now. I mean, I flipped on 23 February, I’ve noted flower starting on 2 March so in week 6 now, and I haven’t been feeding any gro, just my micros are 5-0-1.


Yea, the tall bud seems to have just sprouted loads of leaves, with not many trichomes between them! The lower part of the bud looks better though. And all the lower colas are looking a lot more sparkly!


Thinking there is still 2 weeks left at a minimum, maybe more like 3+?


Thanks for the post. Informative as always!

Tuckatan said:

Thinking there is still 2 weeks left at a minimum, maybe more like 3+?

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They'll pack on some more.. Couple weeks maybe. I tend to harvest early...like the buzz.
JD

Little pic update.

Day 58 of flower. 2 big colas that got a bit of heat stress early, one back left, one out of view front right, stigmas are still white higher up, and don’t seem to be turning orange, though lower ones seem more or less done.

Big old buds though!