View Full Version : is it burn or deficiency...?
Ravishing68
03-14-2007, 04:05 PM
Please look at these pictures and if possible give me some insight on what I am doing wrong to cause the leaves to look like they do. I put a pic of a stem in because I see posts where they talk about the phenotypes and is the purple a good thing or is it showing me a nute deficiency?
pH 5.7, ppm 1190, HPS lighting 12/12, T 78-83, H 40-50%, nutes: 2 tsp dyna-bloom, 1 tsp sugar daddy, 1 tsp top max bloom stimulator/per gallon. approx. 5-6" height. about 10% of leaves have these injuries.
The Hooded Claw
03-14-2007, 04:13 PM
I'm no doctor, but...
What air movement do you have?
What leaves are effected upper or lower?
Where (if you have one) is the oscillating fan pointing at and at what speed?
One last Q, do the plants spend any time in a separate cab during youth?
Its probably not air movement that's doing it, but too much/little or too vigorous an air movement can exaggerate a lesser problem....
, ppm 1190, HPS lighting approx. 5-6" height. about 10% of leaves have these injuries.
I say burn'in up....1190 is quite high for such a young age in my opinion. What wattage is the HPS and does the new growth show any signs... How long have they been at that level?
pi
Ravishing68
03-14-2007, 07:27 PM
I say burn'in up....1190 is quite high for such a young age in my opinion. What wattage is the HPS and does the new growth show any signs... How long have they been at that level?
pi
They are in a caddy and I have to agree I don't think they get great movement though 3 fans, but they are all at the top. one fan blowng in to the light, the 2nd fan pulling air out from the light and the 3rd is a "fart fan" placed at the top. I have the one fan blowing into the light pulled back a bit so some of the air gets to the plants.
I have them under a 400 watt HPS light and the discoloration seems to be pretty much at about the foot high mark on the plant straight across from branch to branch. No the new growth doesn't. I think you're right, the nutes I use are too much over 1000ppm.
Chronic007
03-14-2007, 11:19 PM
Definitly too high ppm for such small plants IMO my friend, bring your your PPMS down under the 1000 mark. I assume the lower leaves are showing this by your explaination and not the uppernew growth? Which IME tells me too much nutes. Definitley back the nutes off a goopd fresh watert flush may be in order as well since the are so young!
feed the plant only what it wants day to day ;) not what the fert bottle says...
simple hydro like....
day one ppm 250
day 2 ppm 200... bump ppm up to 300 (give the plant back what it ate and what it wanted)
day 3 ppm 300..... all good
day 4 ppm 250.... bump to 350
so on and so forth :)
about mid flower this will level off and the plant will just cruse like
peace