Yellow Tips on my young babies

[dr.tomb]

Plant: Nirvana Bubbilicious
Nutes: Hollands Secret (3 Part, the first veg cycle)
Grow Medium: 4" Rockwool Cubes, using non-active (passive) hydroponics
Days In: 17

Issue: Yellowing leaves at the tips. I believe it may be a Phosphorus deficientcy

 

[sunni]

a closer photo of leaves would help my eyes hurt!

 

[dr.tomb]

Better?

 

[dr.tomb]

Wanna start treatment tomorrow.. Any ideas?

 

[Ringsixty]

overwatered
JMHO

 

[dr.tomb]

overwatered
JMHO

While in rockwool cubes? theres a 1.5” or less of water in the tray.

 

[dr.tomb]

I'm thinking more like 1"

 

[Malevolence]

Make sure ph stays between 5.6 and 6.2

 

[dr.tomb]

Make sure ph stays between 5.6 and 6.2

Check mark.. Should mention I transplanted into the bigger rockwool cubes 4 days ago.. Is it possible I broke a small portion of the roots? If this helps:

https://www.rollitup.org/grow-journals/690469-first-grow-nirvana-bubblelicious-600w.html

 

[kiwi]

Looks like they might need more food than what you are giving them. Maybe some grow formular.

 

[MrMeanGreen]

Rockwool retains water, if the cubes are sitting in 1" of water, they may as well be sat in 5". They are drowning. IMHO..... No water in ya table, hand water every 3-4 days until roots break through rockwool. Put your 4" cubes ontop of a secondary medium (hydroton or coir) and then flood your table but not let the flood level hit the cubes. Your roots will be doing the drinking while upper roots in rockwool will be sucking up o2, more importantly not drowning.

 

[dr.tomb]

Rockwool retains water, if the cubes are sitting in 1" of water, they may as well be sat in 5". They are drowning. IMHO..... No water in ya table, hand water every 3-4 days until roots break through rockwool. Put your 4" cubes ontop of a secondary medium (hydroton or coir) and then flood your table but not let the flood level hit the cubes. Your roots will be doing the drinking while upper roots in rockwool will be sucking up o2, more importantly not drowning.

I've drained all the water this morning.. I'll check the plants when I get home in 2hrs.. That will give it 11hrs with wet rockwool ..no sitting water...

 

[dr.tomb]

So i drained the water this morning about 7am, its now 13 hr later and this is what they look like?

 

[woodpusher329]

I read a forum about a tabbacco disease that has symptoms like this, curved leaves with yellow tips and random brow spots

 

[dr.tomb]

I read a forum about a tabbacco disease that has symptoms like this, curved leaves with yellow tips and random brow spots

Good thing its not tobacco.. hehehehe

 

[Sativied]

Good thing its not tobacco.. hehehehe

http://en.wikipedia.org/wiki/Tobacco_mosaic_virus

I agree with the drowning though. The damage is done, just look at new growth not them old leaves.

 

[dr.tomb]

http://en.wikipedia.org/wiki/Tobacco_mosaic_virus

I agree with the drowning though. The damage is done, just look at new growth not them old leaves.

Perfect. Thanks guys