Nutrient Problem? (with pics)

[greenroot26]

I am a long time outdoor grower and a very inexperienced indoor grower. I am officially working with 2 sour diesel plants from clones that were started using the water cloning method, Currently I have a small 4'x3' grow room made out of some OSB (particle board),and is sealed using elastomeric paint .I ran a 65w Flourex CFL until I bought a 150w HPS which may have gave my plants a bit of a culture shock, since half the leafs looked brownish in all different spots of the plant. I use 3 gallon sized buckets with organic soil I also use Fox Farm brand fertilizer, I have all the liquid fertilizers they sell for soil including the soluble granular fertilizer which I am very uncomfortable using since some of the NPK numbers are 9-50-10 and I never really used them before.I am including some pictures of my plants at week 5, and I would really appreciate some feedback from all of you in my first attempt to grow indoors.
Thank You
"J"

greenroot26 Reviewed by greenroot26 on 12-31-2007. Nutrient Problem? (with pics) I am a long time outdoor grower and a very inexperienced indoor grower. I am officially working with 2 sour diesel plants from clones that were started using the water cloning method, Currently I have a small 4'x3' grow room made out of some OSB (particle board),and is sealed using elastomeric paint .I ran a 65w Flourex CFL until I bought a 150w HPS which may have gave my plants a bit of a culture shock, since half the leafs looked brownish in all different spots of the plant. I use 3 gallon Rating: 5

[Weedhound]

Wow, an OFFICIAL grow. It does appear you have some sort of problem but I'm not a soil grower so can't really say what it is....perhaps ph lockout? That's what I would be thinking if those plants were in my hydro setup.

Revised: The Complete Guide To Sick Plants,pH and Pest Troubles - PlanetGanja.com

Here's a good link to check through....hope it helps you pinpoint the problem.

[greenroot26]

That's a great link! :jointsmile:If you would've saw the fan leaves before i pruned them off it tottaly showed signs of light bleaching/heat stress. It's almost showing signs of a potassium deficiency which I'm going to treat for on my next feeding. Thanks for the input !

"J"

[Rock.Steady]

make sure u check ph first as ph lock can appear as nute deficientcy. if u add nutes and they are locked u'll do more harm.

good luck.

[greenroot26]

I have wonderful ph I measured the soil yesterday and it was 7. Great looking out, I really appreciate your input on my wonderful adventure.:thumbsup:

[stinkyattic]

You pH is too high. Bring it down to 6.7. That's why you are having problems with micronutrients.
You are showing magnesium deficiency pretty badly, among other things.
Can you get a proper cannabis fert? You will need to adjust your soil pH by flushing and then do a final watering with 1/2 strength grow fert with micronutirents. I also suggest a foliar feed with a 1/2 strength micronutrient supplement like GH micro or algoflash.

[okwtfo]

I had a similar problem that Stinky helped me out with. Yellow and dry with the edges curling up. It was a combination of Nitrogen burn as well as underwatering. I would suggest, as Stinky said, to flush twice and test your soil with a Pot/Nit/Cal test to see what you need. Go easy on the ferts so that you are not back in the same boat.

My experience is that you are better off under feeding than over feeding. They may grow slower but they will not get burned. Everything new that is introduced needs to be slowly too. When under new lights, when adding fert as well as LST, etc. Too many people rush the process and stress the poor ladies out. Slow and steady winns the race.

BTW, thanks a million StinkyAttic. Blueberries are being LST'd now and are incredibly bushy and greening up nicely! I am used to Sativa strains so the thick leaves are a trip. I flushed and am doing a soil test tonight. They are already incredibly pungent and I only started them on the 10th of Jan!

[stinkyattic]

Cool, it's quite an accomplishment to have a healthy blueberry crop. It's notoriously hard to keep happy!

To the OP, this is good advice, especially when you are still early in the learning process:
"My experience is that you are better off under feeding than over feeding. They may grow slower but they will not get burned. Everything new that is introduced needs to be slowly too. When under new lights, when adding fert as well as LST, etc. Too many people rush the process and stress the poor ladies out. Slow and steady winns the race." Very true okwtfo.

[Weedhound]

Started them on the tenth of Jan? Do you mean december?

[stinkyattic]

Started them on the tenth of Jan? Do you mean december?

Naw, haven't you seen that the new grow hut systems come with a built in time machine so you can plant tomorrow and harvest last week!
Damn. That would be awesome.