Phosphorus deficiency or?

Userunknown

Userunknown

Member
Hello..

So i have 3 autos in a tent. Temps stay around 70-80. Never more, never less. Growing under a 400w LED.

Soil is 1/3 ocean forest, 2/3 roots organic.

Ph on all 3 is 6.4-6.55. Watering at 6.3. I was fairly sure it was phosphorus deficiency, but i wamt to be sure.

I just gave a 1/4 strength feeding of Big Bloom from fox farms. This was their first feeding. They are 32 days in.

The issue is only on the white widow auto.

Thanks in advace for any help/advice given!
 

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Userunknown

Userunknown

Member
I thought about manganese. The very tips of the newer growth twists over. Its strange. Its not pests that i can see. Ive looked super close, and a lot.

The only other thing ive noticed would be red stems. Im assuming it should fix itself if its either of those deficiencies, since im starting to feed them now! Lol. Its been a waiting game because the ocean forest is a hot soil, and the roots organics has fertilizers in it as well.
 
weedthungz

weedthungz

Member
Userunknown said:
I thought about manganese. The very tips of the newer growth twists over. Its strange. Its not pests that i can see. Ive looked super close, and a lot.

The only other thing ive noticed would be red stems. Im assuming it should fix itself if its either of those deficiencies, since im starting to feed them now! Lol. Its been a waiting game because the ocean forest is a hot soil, and the roots organics has fertilizers in it as well.
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good luck! I'm sure it'll work itself out now that you are feeding as long as it's not pests.
 
Userunknown

Userunknown

Member
Okay, so... also appears to be calcium/mag deficiency, but im a little unsure at this point.

I fed halfstrength dose of CAliMAGic, with a little bit of pure blend tea compost(.5-.5-1) but it didnt seem to improve anything. I did a close up of the leaves just to show.

Ph is 6.4 (watered at 6.2, runoff 6.6)20180905_222337.jpg 20180905_222327.jpg 20180905_222317.jpg 20180905_222337.jpg 20180905_222327.jpg 20180905_222317.jpg
 
hotrodharley

hotrodharley

Well-Known Member
Userunknown said:
Okay, so... also appears to be calcium/mag deficiency, but im a little unsure at this point.

I fed halfstrength dose of CAliMAGic, with a little bit of pure blend tea compost(.5-.5-1) but it didnt seem to improve anything. I did a close up of the leaves just to show.

Ph is 6.4 (watered at 6.2, runoff 6.6)View attachment 4193573 View attachment 4193576 View attachment 4193578 View attachment 4193573 View attachment 4193576 View attachment 4193578
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Nothing is going to make bad leaves improve. Watch your new vrowth.
 
Userunknown

Userunknown

Member
Okay, good. Thats what I thought. Does it sound like ive hit the nail on the head? The lights need raised. I gotta get creative on how im pulling that off. Its about 12" from my tallest one. 16" from my shortest. For autos, the one with the issues sure is growing! 3ft and counting. Had to remove the top of my tent and extend up my closet. Cant go any higher without removing shelves and adding anchors into the ceiling lmao. Think itd be too late in the game to do some light lst?
 
weedthungz

weedthungz

Member
Userunknown said:
Okay, good. Thats what I thought. Does it sound like ive hit the nail on the head? The lights need raised. I gotta get creative on how im pulling that off. Its about 12" from my tallest one. 16" from my shortest. For autos, the one with the issues sure is growing! 3ft and counting. Had to remove the top of my tent and extend up my closet. Cant go any higher without removing shelves and adding anchors into the ceiling lmao. Think itd be too late in the game to do some light lst?
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no lst is always safe to do hence the low stress, it might not help too much depending on how late into flower she is.
 
Userunknown

Userunknown

Member
Im thinking about LST more for height management. I irresponsibly lost track of when flower began. This is my first run with autos, so didnt even think about it since i never flipped the light schedule. 43 days from germination
 
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