another problem... yellow leaves *pics* HELP!!!

well my plant just recovered from a pH issue and
now ive got another problem.

my plant is about 5 weeks old, about 9-10 inches tall,
is working on putting out its 11th node of new leaves.
i thought it was in generally good health, but i noticed
that the bottom most leaves were turning yellow. i thought
nothing of it as i figured that they just werent taking in
enough light to be valuable to the plant anymore.

but then the next up set of leaves started to yellow too, the
bottom ones had nearly withered and fallen off... again i
didnt think much of it as these leaves were sort of mutant
anyhow and at the bottom of the plant...

but now the 3rd and 4th up leaves are starting to do the same
thing... out of 11 sets of leaves i would say this wouldnt be
normal anymore...

i water every other day with about 16oz of water, they dry out
pretty good in that period of time, so maybe im UNDERwatering
them? it doesnt seem like heat issues, the leaves are not curling
up to conserve moisture...

the plant is generally "brittle" feeling... as in it doesnt feel like a
lush plant, it looks pretty much ok, but the leaves are a little dark
and kind of harder, like they could crack and are "scratchy"

this is my first grow that has gotten this far, so im just learning
whats normal and whats not...

i looked on overgrow and found that it looked like a nitrogen
deficiancy...

please check out the pics and let me know what i could do...
thanks.

What ferts are you using? During the veg stage, you should be using something high in N(N-P-K). If you are not, that is most likely your problem.

What strength and how much fert are you giving them?

It's hard to tell if it's overfeeding or a N def.

Tell us what the n-p-k ratio of the ferts you're using, how much, how often. Knowing that we might be bale to help diagnose it better. If you are using no ferts, that's your problem.

im not using any ferts at this time...

what do you recommend?

when should i have started them on ferts?

thanks.

What type of soil are you using?

foxfarm ocean mix.

I use Foxfarm ocean mix as well. Generally speaking I have found 2 weeks worth of food for plants in potted containers. I would use peruvian sebird guano (10-10-2) perhaps with the addition of 1/2 dose of Liquid "N" made from alfalfa etc. Also this soil requires the addition of epson salts(1/2tsp/gal) from time to time and an occasional foliar feed of liquid seaweed. Soil generally speaking will hit toxity level of 6.0 PH in 2months time(3galcontainer). Flush rather than ph up.

snow_owl is right, FLUSH

Looks to me like normal aging of first leaves to me. The shoots look good and healthy.

Fan leaves will all die....especially the lower ones.

I follow the rules that say nute probs and other chemistry issues start at top.... and work their way down.

Those leaves just look like they are old and giving way to a lot of secondary spaces.

Quote:

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Originally Posted by HARDDON

Looks to me like normal aging of first leaves to me. The shoots look good and healthy.

Fan leaves will all die....especially the lower ones.

I follow the rules that say nute probs and other chemistry issues start at top.... and work their way down.

Those leaves just look like they are old and giving way to a lot of secondary spaces.

---

Oh wow your good :D

well i didnt see snow owls post before i went shopping
today, so what i got was foxfarm grow big 6-4-4
1 tsp. per gallon...

i gave the fern a heathly flush and watered with the
new food... if things arent looking better in 2-3 days
ill get that 10-10-2 stuff... but would my Nitrozyme be
just as good as the liquid N?

funny you should mention that pH info... i had 2 sets
of plants have pH issues within a month of planting... i
was too naive with the first group and lost them, i was
able to save them this time though... ill keep an eye
out throughout the grow for signs of pH problems.

hopefully it enjoys dinner : )

thanks for the tips!!!

Quote:

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Originally Posted by BlueCat

Oh wow your good :D

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this is EXACTLY what i thought when it was the first
set of leaves then the second, but now its reaching
the 5th out of eleven nodes and hurting the bottom
secondary growth... which royally pisses me off, since
it seems to be doing well in that area...

Quote:

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Originally Posted by stewie420

i gave the fern a heathly flush and watered with the
new food... !!!

---

WTF?

Dude do you want to save or kill your plant?

I know its a rhetorical question...but.......

Pick someone to listen to and listen to them.

Kinda like a sorority brother :)

Quote:

---

Originally Posted by HARDDON

Looks to me like normal aging of first leaves to me. The shoots look good and healthy.

Fan leaves will all die....especially the lower ones.

I follow the rules that say nute probs and other chemistry issues start at top.... and work their way down.

Those leaves just look like they are old and giving way to a lot of secondary spaces.

---

Those leaves are not that old. That is not normal. The most common reason the lower fan leaves dry up and turn yellow or fall off that early is not enough light and that stops the leaf from producing chlorophyll. I don't know if that is the case here I don't see how close his light is or what type of lights they are under or even the average temperature.

So I say flush and be safe. When you start feeding nutrients again start with 1/2 strength the first time back then bump it up.

Not familiar with Nitrozyme. Sounds like an addition of enzymes that promote root uptake. You'll have to read the label, but any pure liquid form of N will due, but I prefer all organic sources.

Quote:

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Originally Posted by snow owl

Not familiar with Nitrozyme. Sounds like an addition of enzymes that promote root uptake. You'll have to read the label, but any pure liquid form of N will due, but I prefer all organic sources.

---

nitrozyme is just a nitrogen booster... so it sounds like its the same
stuff...

HARDON... i dont mean to be ignorant, but i thought the flush
was to get any of the nasties out of the soil and then i should
feed them to get them healthy again... ive seen your grow log
and from what i saw you sure look like youve got a good handle
on growing...

at any rate... the plant is still alive, the new growth is good, im
just waiting to make sure the yellowing has ceased, which i suppose
wouldnt happen in one night if the nutes were indeed the problem...

ill give them another 2 days, so long as things dont get any worse, and
ill go from there...

zandor... my setup consists of a standalone 3x4x8 closet fully mylard...
ive got a 150 HPS hanging about 15 inches over the plants... there are
2 in the closet... the sick one and sort of a midget plant...

ive also got 4 28" cool white tubes against the back of the closet and 2 sets of 2 foot cool white tubes, one on each side of the plants for vertical light.

ive got a fan on pointed towards the top of the plants which is aimed so
that it cools the HPS light... it doesnt get too hot in there... the leaves
dont really curl on me or anything...

thanks!!! i need to smoke a fern... :confused:

by the way... anyone ever order from the great canadian seed company...
cause ive been waiting 4 weeks for a delivery and have got nothing... ???
im gonna email them right now, but i was wondering if anyone had any
experience with this company... thanks!