Need help with a deficiency

  • Thread starter Lewish02
  • Start date
  • Tagged users None
Lewish02

Lewish02

153
43
Hi, I've got 9 autos thats just started flowering and I've noticed today that the leaves look a bit yellowing on the tips and looks like down the sides of some. Think it might be either nitrogen or sulphur going with what I found on the net but as its my first grow I'd rather get a second opinion before acting.

7 weeks.
18 lights on.
Grown in coco.
Cal mag 1ml/L.
Flora gro/micro/bloom at chart strength 800 odd ppm.
Ph 5.8-6.
Liquid silicon 1ml/L
B52 2ml/L
Temp 25 degree c.
Humidity 50-53%
 
20210411 094909
20210411 094809
20210411 094756
20210411 094254
Lewish02

Lewish02

153
43
Hi, I've got 9 autos thats just started flowering and I've noticed today that the leaves look a bit yellowing on the tips and looks like down the sides of some. Think it might be either nitrogen or sulphur going with what I found on the net but as its my first grow I'd rather get a second opinion before acting.

7 weeks.
18 lights on.
Grown in coco.
Cal mag 1ml/L.
Flora gro/micro/bloom at chart strength 800 odd ppm.
Ph 5.8-6.
Liquid silicon 1ml/L
B52 2ml/L
Temp 25 degree c.
Humidity 50-53%
 
20210411 100115
Moshmen

Moshmen

Staff
Supporter
5,872
313
Calibrate ur pen- 1 gram of table salt in a liter of water should run about a 1000 ppm on the 500 scale and post some whole plant pics
 
Lewish02

Lewish02

153
43
Calibrate ur pen- 1 gram of table salt in a liter of water should run about a 1000 ppm on the 500 scale and post some whole plant pics


I put them that mixed up salt/water 1 says 1300 the other just went haywire and would give a constant reading. I can't calibrate them because the instructions don't say how to they just cheap ones for £20. I don't know what 500 scales is. The ec is in its range at 1.8 and runoff is 6.4ph
 
20210411 112058
20210411 112116
20210411 112136
20210411 112705
Moshmen

Moshmen

Staff
Supporter
5,872
313
Still looks pretty healthy - and I though my tents were crowded ! Lol ur gonna need airflow thru that jungle. Without knowing which pen is correct I would cut my nutes back for 1 watering and look for results on new growth but overall I think ur gonna be fine - see what one of the masters say here ? Lol
 
Lewish02

Lewish02

153
43
I've just bought a more expensive pen wi good reviews, I regret putting soo many in lol but I've got a 6" ac infinity inclined fan coming so just going to hook up some 3" ducting and put holes in it and wrap it round the underside of the plants. Wi them being autos dont really want to touch them. Cheers pal
 
Moshmen

Moshmen

Staff
Supporter
5,872
313
I've just bought a more expensive pen wi good reviews, I regret putting soo many in lol but I've got a 6" ac infinity inclined fan coming so just going to hook up some 3" ducting and put holes in it and wrap it round the underside of the plants. Wi them being autos dont really want to touch them. Cheers pal
You can definitely defoliate a bit a few older leafs each day 4/5 here and there no more at time - take the older leafs blocking light from penetrating the canopy and old undergrowth so air can move “inside” the plant - just do t take to many at once and you won’t slow them down !
 
Lewish02

Lewish02

153
43
Do you add silica at the same time you feed?
Yes i add the liquid silicon with the feed but I ph the water to 7ph before adding nutrients because its sky high after adding silicon.
 
taxle

taxle

100
43
You are locking out your nutrients, you need to add your micro bf anything else. Silica and cal/mag need to be feed separate and never together. Ph needs to be done after you mix all your nutrients.
 
Lewish02

Lewish02

153
43
You are locking out your nutrients, you need to add your micro bf anything else. Silica and cal/mag need to be feed separate and never together. Ph needs to be done after you mix all your nutrients.

Yeah i do ph my water to 5.8 after nutrients are added but I also ph it to 7 after adding liquid silicon because the ph shoots up to 10 after adding silicon but before adding everything else. OK ill try doing it separately
 

Similar threads

Lewish02
Replies
6
Views
338
Lewish02
Lewish02
Homegrown81
Replies
0
Views
204
Homegrown81
Homegrown81
K
Replies
12
Views
203
mjab702
mjab702
Lewish02
Replies
117
Views
2K
Lewish02
Lewish02
FreddieBandz
Replies
15
Views
615
Frankster
Frankster
Top Bottom