Yellowing Leaves(I have researched)

[privatepile]

Ok i have a problem with my plants.The bottom leaves have started turning yellow.

I have Top Soil(no ferts).The strain is White Widow.They are under 3 x 40watt daylight CFLs,They are a few inches from the plant.

There is a fan blowing on them.

To water i use bottled water so the PH should be fine.

I have researched a lot and i think most of the time its nute burn.

This is not the case for me as there was no nutes added and the soil had none.

So i think i have have a nute deficiency.I also think that it may be from over watering as this was done at the start.

Tp fix the problem i moved the plants in to multi purpose compost with slow release ferts.(The compost is for seeds and young plants so there should be no nute burn)

I also gave the plants a very diluted feed a while ago.Around 1/6
strength.
There is mylar in my cupboard.I dont think it would be caused by hotspots because it is the same on both plants in the same place.

Just wondering if my plants will recover.

privatepile Reviewed by privatepile on 10-26-2007. Yellowing Leaves(I have researched) Ok i have a problem with my plants.The bottom leaves have started turning yellow. I have Top Soil(no ferts).The strain is White Widow.They are under 3 x 40watt daylight CFLs,They are a few inches from the plant. There is a fan blowing on them. To water i use bottled water so the PH should be fine. I have researched a lot and i think most of the time its nute burn. Rating: 5

[stinkyattic]

Too early for ANY ferts from any source. Fert burn. Stop feeding, give only water until node 5. They should grow out of it. IF you notice them getting worse in the next 24h, FLUSH.

[privatepile]

But this problem started before the nutes were added.

They were just in some top soil with no ferts i bought at my garden center.

Thats why i taught it was a deficiency problem.

[Weedhound]

And check the ph of your soil runoff.....just because it is bottled water doesn't mean it has the right ph for your plants. You most likely have to adjust it first.....no matter where your water came from.

[Weedhound]

I think you might be looking at ph lockout there.....causing nute burns/ and / or defs. The yellow tips DO look like burn....as the master Stinky says.......I only want to add that you should never ASSUME the ph of anything.....ALWAYS check it.

[privatepile]

Thats a good point.I never taught that would be my problem.

Im using Still Mineral Water.

Here is the nutritional information in Mg per Litre

Calcium 82
Magnesium 9.7
Sodium 23.9
Potassium 2.2
Biocarbonate 228
Chloride 41
Sulphate 10.8
Nitrate 5.0

I dont have a ph meter but this should be arriving any day now.
eBay.ie: 3in1 Hydroponic Plant Soil pH/Moisture/Light Meter NEW (item 280164139183 end time 27-Oct-07 21:48:44 BST)

Antone know if they are accurate.

Is there any type of water i should use while i am waiting?

[Weedhound]

If your meter isn't coming to by tomorrow can you get to a pet store and get the $5 strips in the meantime? I think every day you wait is pretty detrimental to your little plants so the sooner you can get it checked the better. Pet store ph TESTERS are fine but DONT use ph adjusters for aquariums.....

Good Luck.

[Bramptony]

yeah i was using bottled water on my platns and the ph turned out to be too high,
but whats wrong with using the ph adjusters from the aquarium store ?

[privatepile]

I think there might be too much info on the net.LOL sounds crazy but i have researched and these are all the possible problems.

Nute Deficiency
Nute Burn
Over Watering
Ph to high
Ph to low
Plant did not have enough room to root properly
Nitrogen Deficiency
Too much Light
Not enough light
Burns from hotspots.

[Weedhound]

pile....you are quite right.....that's what makes that kind of thing so hard imo.
(ps....I personally think ph is your issue here......guessing )

Bramptony.....the ph adjusters for fish/aquariums are made from different ingredients than the ones made for plants.....among other things they are way too high in salts for plants.