Second grow problems

[Shutterbug1]

This is my second grow using white widow autoflower in 3gal pots indoors. I used natures living soil and mostly tapwater. First grow was great no problems. Plants wete about 24 in tall and a little bushy. This time i have 5 plants, kinda squeezed in the zame space. The lower leaves have all turned brown . One plant is making buds but they are kinda thin. The othet 4 are very tall and when they started budding the buds are very thi with just a few hairs at the junctions. All the plants have developed yellow spots that turn brown . I startsd these in April. Im using 2 Kind 1000w led banks. They have gotten so tall i am getting some light burn and curling leaves on the closest to the light. Except for the spots and weak buds the plants grew very well. I would hate to lose them but.....oh they are on a 18/6 light schedule. Most of the time though they were on 24/7.

 

[namvet25]

Picture of entire plant please and more info on your nutes brand,how often you feed?

 

[AutoWonders]

If you fill out the Infirmary form, that will be very helpful.

 

[Mañ'O'Green]

Looks maybe like a "P" deficiency but we need more information. Please fill this out - Thanks

Please fill in this form:

-Problem: (brief description)
-Medium/grow method: soil; soilless-- coco, or peat based like Promix, etc. (please provide the actual product name); DWC, NFT, etc.
-Feed and supplements used: include brand, dosage/strength, frequency of feeding and watering (alone); method-- by hand, drippers, rercirc' or drain-to-waste,... N-P-K #'s too if you can!
-Water source: RO/DI; tap- dechlorinated-?..... EC or TDS reading; pH (don't bother with this on RO/DI, do bother with TDS/EC though to confirm it's working well enough)
-Strain and age
-Climate: night and day ambient T and RH%; res' temperatures; any extremes in T/RH% exposure
- Light used: HID, LED, COB, combo of,... wattage; light cycle hours (20/4, 18/6 , etc.); distance to tops....
-Additional info: How long have the plants been affected?...How fast did symptoms appear?... Anything else you think might be relevant..

--Pictures including WHOLE PLANT PICS, and troubled leaves.. use normal light or flash as other light sources ruin color rendering, critical for diagnostics!

Problem:

Medium/grow method:

Feed: and supplements used:

water source:

Strain/age:

light used:

Climate:

Additional info:

 

[HonestGR]

I agree with others above, need more info!

 

[Shutterbug1]

I started these white wido autos in April. They started to flower about 3 to 4 weeks ago. I have them in 3gal plastic pots. I used Natures own super soil concentrate and a organic potting soil foxfarm i think. The first grow was pretty good with no real probs at all. I just used tap water . Ph about 7.5. This time i used the same seed and soil and water. Oh the lights were Kind 1000w leds. Two of them. I have a fan set up to keep the air moving. I am in an air conditioned building. On the first grow no liquid nutrients . This time around everything looked normal until i noticed that 4 of the plants kept growing much bigger than one. That one was about 2ft tall when it started flowering. The other 4 plants kept growing and are now over a foot taller than the other one. I got my seed from ILGM. Supposed to be WW autos. It seemed to me it took a long time for them to start flowering. About the time they started showing the little hairs at the junctions i started noticing yellow spots on some leaves. I started feeding 1/2 tsp Bloom when i watered usually every 3 days. That Bloom is byDyna Grow 3-12-6. The spots started getting brown and is progressing to more of the plant. I have one plant that has a lot of buds but are small and thin . The others are just barely a few hairs at the junctions. The growth looks like veg and odd for a flowering plant. I started them all on 24/7 light schedule and switched to 18/6 when it seemed they werent budding in what i thought was appropriate time. I have some pics . I sure hope this helps. For this grow i have flushed the pots with 6.0 tap water for 2 watterings then started back with the Bloom . No change. Also the runoff shows a ph of 6.8 now.

 

[Arthur]

Looks like magnesium, under led, you can see an increase in calcium and magnesium uptake, but your pH seems to need looking at. Watering at 6 and still getting a runoff of 6.8 suggests your soil is above that. I'd look for an accurate pH of the medium, either with a probe, or a slurry test. PH and ppm.
Once we know these [HASHTAG]#s[/HASHTAG] we can determine if it's due to lock out or low inputs.

 

[Shutterbug1]

I agree with others above, need more info!

Ive been trying to find a form to fill out.All i see is a list . Sorry not very teche.

 

[HonestGR]

Man o grene posted one for you, scroll up.

 

[Shutterbug1]

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Problem: tiny undeveloped buds, yellow blotchy and brown spots on leaves

Medium/grow method: Natures Own super soil concentrate and organic potting soil no additives. 3gal buckets with good drainage

Feed: and supplements used:hand watered with ph 6 tap water. Same as my last grow. I just checkex the ph near the roots 6.8 i started using 1/2 tsp Bloom from Dyna Grow brand. 3-12-6 when i saw first signs of buds appear.

water source:well water .i now ph it to6.0.

Strain/age: white widdow auto, these plants are about 3mo.

light used: kind 2x 1000w leds 24/7 changed to 18/6 just before buds started showing.

Climate: about 80° in grow room with all lights on. Humidity is low because of ac.

Additional info: just reference my pics from previous posts . One of the plants looks almost normal except for very thin buds. The other 4 are much taller. They are exceeding the height of growroom.