Fan Leafs. Blockers of Light Or Energy Producers???

Status
Not open for further replies.
This plant saw a few rough days... go easy on me... She was SUPER sensitive to Nitrogen.. It was really hard to keep her green while not turning the leaves into something resembling a spring This plant curls up after every moderate N feeding. It was my first go with this plant. I'll have it growing nice soon enough.

This plant is really good about solid growth all the way through.. no defol... a little tying back near the end of flower helps shape the canopy. Not necessarily to reach lower buds, but to get as much light on the plant as possible. I'm loving this plant from a pack of Killing Fields F3 - Sannies Shop.
I've got a grow going for it and 5 other KF's here.... https://www.rollitup.org/grow-journals/588955-6-sannies-killing-fields-f3.html


kf41_cleaned.jpgkf42_cleaned.jpg
 
HeartlandHank said:
This plant saw a few rough days... go easy on me... She was SUPER sensitive to Nitrogen.. It was really hard to keep her green while not turning the leaves into something resembling a spring This plant curls up after every moderate N feeding. It was my first go with this plant. I'll have it growing nice soon enough.

This plant is really good about solid growth all the way through.. no defol... a little tying back near the end of flower helps shape the canopy. Not necessarily to reach lower buds, but to get as much light on the plant as possible. I'm loving this plant from a pack of Killing Fields F3 - Sannies Shop.
I've got a grow going for it and 5 other KF's here.... https://www.rollitup.org/grow-journals/588955-6-sannies-killing-fields-f3.html


View attachment 2525576View attachment 2525577
Click to expand...

--HeartlandHank, you got close-ups of those flowers? love me some bud porn :) , some strains finish with ugly leaves cause they are so picky/finicky , its all about the buds in the end~
 
Those look great, very nice ratio. I can see what you mean when you say growing them not too big but not too small now. She looks confined to a manageable size but still large enough to get yourself a good amount of smoke. Also not going so large would be easier to tune in the when to take clones timing. I really like the second pic, with the right cropping on it that looks like a bud picture from a seed catalogue. Very well done.
 
HeartlandHank said:
This plant saw a few rough days... go easy on me... She was SUPER sensitive to Nitrogen.. It was really hard to keep her green while not turning the leaves into something resembling a spring This plant curls up after every moderate N feeding.
Click to expand...

View attachment 2525577

What food and how much? You've got some major chlorosis going on which will screw up production. N is not the problem here.

UB
 
UB, I would love some advice on this. I've pestered you before.. you know.

I was vegging this plant with DGro Foliage pro 9-3-6 1/4 - 1/2 tsp/gal. 1/2 tsp/gal does well for my other plants... I would call that "full strength".
I was feeding Dyna Gro 7-9-5 for the first 2 weeks of flower. 1/2 - 3/4 tsp per gal.. The bottle shows full strength as 1 tsp... Her leaves curled whenever I fed more than 1/2 tsp per gal. They are In coco, watered a couple times a week. Maybe 3 x's fed then 1 x straight water.
I switched to House and Garden Coco AB around week 3. The values from A and B add up to .4-.3-.9. I added cal mag+ to the H&G feeds, 5 ml per gallon. Label says 5-10 ml/gal.

There were a few DG magPro 2-15-4 additions to the feed around week 7 or so... at 1/2 strength of the label.. I'm guessing that could have been the cause of some of the chlorosis.

The pics above are from mid week 11 of flower.

What do you think?
 
HeartlandHank said:
There were a few DG magPro 2-15-4 additions to the feed around week 7 or so... I'm guessing that could have been the cause of some of the chlorosis.

What do you think?
Click to expand...

Yep. There's your problem and just what I suspected. Simply put, high P foods lock micros which show up as chlorosis mainly on upper leaf surfaces (micros are not mobile within the plant. IOW, they show up on new growth only, will not be relocated to lower leaf levels like Mg or N would.)

If they were mine, I'd use the Foliage Pro 9-3-6 all the way thru.

Here's 2 links that will help:

https://www.rollitup.org/marijuana-plant-problems/158144-never-ending-abuse-phosphorous-bloom.html

http://www.totalgro.com/concepts.htm

Another thought, don't force feed your plants. Feed them according to their NEEDS, not some whim. They will need more nutes when they're bulking up the most (i.e. early adult, the stretch), when they're the most vigorous as opposed to the early juvenile stage of late flowering.

Good luck,
UB
 
Funny now that I think of it but my outdoor plants reacted the same as yours when I fed them a high P food just to see their reaction - curled leaves, yellowing. I left them alone which means they got primarily the slow release 18-4-9 until harvest. It's not the N that's the problem although Dyna-gro's N can be hot, I think. Look at the label, is the N not mostly in a nitrate form?
 
Thanks for the advice.. I had much success with DGro 7-9-5 all the way through with a Skunk cross crop I finished a few months ago.

I just flipped 12/12 on another crop of that Skunk cross. They are still on the 9-3-6 diet, so I could easily start a 9-3-6 all the way through right now.

You feel that 9-3-6 would be a better choice than 7-9-5 to use after the stretch (wk4 to harvest). Or is 9-3-6 all the way through more so just to keep it simple?

I assume you do not buy the idea of cutting N for the last week or 2? Or that P K helps resin production? Or that much N late will effect aroma negatively?
 
Uncle Ben said:
Funny now that I think of it but my outdoor plants reacted the same as yours when I fed them a high P food just to see their reaction - curled leaves, yellowing. I left them alone which means they got primarily the slow release 18-4-9 until harvest. It's not the N that's the problem although Dyna-gro's N can be hot, I think. Look at the label, is the N not mostly in a nitrate form?
Click to expand...

7-9-5 is 2.6% Ammoniacal N and 4.4 Nitrate N
9-3-6 is 2.9% Ammoniacal N and 6.1 Nitrate N
The DG feedings early caused quite a bit of curl. The chlorosis picked up later though... post H&G and continued post MagPro.
These plants also saw 5 days straight of darkness mid flower... I had to leave town for a week... forgot about that tidbit.
They were a little pale looking upon returning to the garden and getting the lights back up.

It felt like a losing battle, they looked yellow like they wanted more N, but they curled up when I gave it to them.
This plant was always an the odd seedling too. Strange looking gangly growth since birth about 1 year ago.The flowers were a nice surprise though

Edit:: I guess according to your info.. 7-9-5 WAS quite a bit of P.. I felt like I was giving N, but it was actually a good dose of P.
 
Ya 3-1-2 was found to be the best for growing hemp keep those ratios 9-3-6 and things will be good.

I use the organic equivalent Alfalfa but it adds a lots more then npk.
 
Bud Brewer said:
Ya 3-1-2 was found to be the best for growing hemp keep those ratios 9-3-6 and things will be good.

I use the organic equivalent Alfalfa but it adds a lots more then npk.
Click to expand...

Thanks. I'm going to try this 9-3-6 through feed out.

I went ahead and plucked leaves from 6 of the 12 Skunk plants. So I have a nice 50% 50% over 3 600s. Some plants only needed one leaf removed to get that exposed effect. I did see the lower growth liven up about 3 hours after the light came on today. It should be interesting to see the difference between the bushiness and branching of the two groups of 6.

I think this crop is going to beat my previous personal best. I'm feeling confident going into flower. If 9-3-6 will increase yield over 7-9-5 (given adequate conditions) then it should. If defol does as well, even better.'t

I will not be able to compare the defol 6 to previous crops as this 9-3-6 treatment will be all new to the defol. It should compare well to the other 6 though. My flower tent has some microclimates, but they are fairly symmetrical. The test is divided from the center, so, should be good.
 
I've seen some good growers do it at flip it does make sense as new branches will come out just before the buds set with better penetration.
I wish i had defoliated once more before flip.
 
Status
Not open for further replies.

Similar threads

RookieHaze
Will a plant with no top fan leafs grow?
Replies
1
Views
344
medidedicated
medidedicated
EmeraldGreenGal
Should I prune fan leaves?
Replies
11
Views
703
Delps8
D
H
So, like, what now? They exploded.
Replies
2
Views
353
heykevo
H
bignugs68
Deficiencies, First mag started, now calcium?
Replies
11
Views
746
bignugs68
bignugs68
B
Never ran into this….need some help
Replies
14
Views
1K
hokiemusky
H
Back
Top