Nitrogen toxicity? Jack's 321 users please

Troubleshooting Stress
1

Wondering if this is N toxicity? Kind of looks like from what I’ve seen online since the leaves are curling down. The edges are also a bit deformed on the durban poison. Haven’t seen much about the lightening/discoloration beyond some references to TMV (tobacco mosaic virus) but I can’t image how they could get that…

Using Jack’s 321. Wondering if I should cut the part B down to 50% concentration for now?

Will be using Autopot system soon. Currently in the autopots but with manual watering to ~20% runoff +/-. PPM at 50% was ~500. Haven’t measured it now that I am at 100%. Will do that on the next watering.

Feminized photoperiod from Canuk. 1x strawberry cough, 1x durban poison.
Indoor, 2x4 grow tent.
Medium: ~75% canna coco (buffered), ~25% perlite
Nutes: Jack’s 321. Nothing for first week. 50% for weeks 2-3. 100% week 4+
Source water: tap, ~7.2pH, <100ppm
Lighting: LED, 1x240W
Watering: Add nutes, then pH. Water daily aiming for 20% runoff currently takes close to a liter (1 quart?) each.
Plants sprouted Jan. 17
First 3 photos are the durban poison, which I am primarily concerned about.

20220216_135439
20220216_1354391920×3413 799 KB

20220216_135456
20220216_1354561920×3413 802 KB

20220215_190550
20220215_1905501920×3413 624 KB

This is the strawberry cough.

20220216_135506
20220216_1355061920×1080 413 KB

20220216_135546
20220216_1355461920×3413 828 KB

1 Like
2

I see nothing that says N toxicity. Drooping is generally something that occurs around watering time or lights on/off. Nothing to worry about. Your plant looks fine.

7 Likes
3

Great, glad to hear it. I’m always over-worried about this stuff. No concerns about the deformed leaves?

Here’s another photo showing the curling better. They’re always like this, regardless of time of day or anything else.

20220216_143449
20220216_1434491920×1080 181 KB

4

Your plant is doing fine.

3 Likes
5

@fourtwenty4_20 just a shot in the dark but the one pic that has the most “deformities” looks like bite marks. Do you have a cat? Other than that they look great! Good job.

6

Meow, meow.:scream_cat:

7

LOL no cats here.

8

I had the same marks on some of my indoor starts, and found out I have one kitten that likes to chew on plants. Didn’t put it togather until I found her gettin’ into my Oreos!!! :sunglasses:

1 Like
9

What’s your ending PH after adjusting from the mixing nutrients?

1 Like
10

They look great to me, no need to cut ppm in half. Just keep making sure your ph goin in is right and get a little runoff it will be great

1 Like
11

I guess I should have said “check pH”. It turns out that when I add the jack’s 321 I end up with water at 5.8 so I haven’t actually had to adjust it. My tap water is around 60PPM. It goes into a 5 gallon bucket for a few days and I use a fish tank air pump as a bubbler. Whether or not that makes a difference is up for debate but I already had so I figured why not use it.

12

Perfect, when I mix Jacks my PH is the same :love_you_gesture:

1 Like
13

Same here. Using RO water my Jacks hits the 5.8 mark every time. I dont even check it anymore.
Wonky looking leaves are so common on cannabis I dont even care anymore. As long as coloring is good and there is no severe spotting I just let them ride. You can tell your plant is happy by how large your fan leaves are already. That is a great sign on plants.

3 Likes
14

Thanks for the input everyone. This is my first indoor photoperiod run. I grew a big one in my backyard 2 years ago. It was so wet that fall I found some bud rot, panicked and chopped it too early. Buds looked beautiful but it only got you high for 5 mins. It was 6’ tall and atleast 6’ diameter. Such a waste.

2 Likes