Have you tried adding a little epsom salts to your water?
http://boards.cannabis.com/plant-pro...magnesium.html
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Have you tried adding a little epsom salts to your water?
http://boards.cannabis.com/plant-pro...magnesium.html
Thanks cool!
It shouldn't be vitamin or mineral deficiency. It is in soil that is supposed to have fertilizer added to it already. Also, the other plant grown in the same soil isn't doing this. Unless there is some point I am missing.
I am hesitant to use epsom salts at this time due to information presented in this post:
http://boards.cannabis.com/plant-problems/164861-official-epsom-salts-not-miracle-cure-thread.html
So far this problem has confined its self to the lower 3 fan leaves. I wonder if chlorine could cause effects like this. Maybe I should have let the water sit longer.
The water I used on the other plant sat for 6 days, while the water used on the affected plant only sat for 1 day.
Thank you for your thoughtful reply. :thumbsup:
Damn, spoke too soon. Sorry about that. :( That looks like either Nitrogen or Potassium deficiency. What is the ph level of your water and what is the ratio of nutrients listed on the soil? You might be over-watering which can cause nutrient lockout as well. How often you water?
My soil nutrients are 10-8-6. It gets water once a week. The pots have a layer of gravel in the bottom. Good drainage. I don't have a ph testor, but is seems if ph was the problem, both plants would suffer. yes/no?Quote:
Originally Posted by Totah Sam
You're right. I missed that. Have you checked for spider mites?Quote:
Originally Posted by pepurr
Also, some strains are more susceptible to nutrient deficiencies than others. Are they the same strain or do you know?
Looks like classic burn, chorline or fertilizer. In soiled pots like that, they'd have their own unique Ph issues. Even in my hydro unit with a medium that holds little left over, I see differences in the plants. In my opinion, not knowing Ph is a gamble and a loss of control of your garden.
But I'm a check it twice a day very paranoid about my water kinda guy :)
How often are you flushing? I think I remember reading that in soil you wanna do it every 4 weeks or so, but I dont know the effects it would have on your ferts/soil. Hydroton/Rockwool flush much easier than soil I would imagine, did the ferts/soil have flushing guidelines?
Haven't seen any signs of pests, except the occasional gnat. I think sometimes a gnat will follow me indoors, then makes its way to the grow for a nice place to rest. Bad move for the gnat because that is punishable by death.Quote:
Originally Posted by Totah Sam
Two things come to mind. When I collected the gravel for the bottom layer in the pots, I was careful to only get rocks and no seed or other foreign material. I did not do any other thing to the rocks, like bake them. Perhaps there was something in the rocks that I couldn't see. Something that could have been killed by baking the rocks for 20 minuets at 250 degrees.
Or the second thing, the soil has built in fertilizer that is supposed to last for 9 months of growth. The potting soil bag says that the fertilizer is heat activated. Perhaps the amount of fertilizer being released is to much for this plant at its present age. Maybe it is more sensitive to over fertilizing than the other plant.
With that built in fertilizer, it would seem that nutrient deficiencies wouldn't be a problem. Unless some nutrient was some how being locked out. Then how could the nutrient be locked out, unless by improper ph? But then it would seem the other plant would be affected too.
I have some Miracle-Gro Plant food spikes I was saving for when they go into 12/12 flowering. I was saving them because they are 6-12-6, and I have read that phosphorus is the important one for marijuana flowering.
These spikes also have other micro-nutrients included. If it is a nutrient deficiency affecting this plant, maybe if I added a couple of these spikes that would take care of it. On the other hand, if it is nute-burn, due to the built in fertilizer soil, maybe adding the spikes would only serve to compound the problem.
Got any thoughts on it?
The ph issue is bothering me. I haven't the money to get a test kit. All, and I do mean all, of my money was spent on lights and soil. Now broke again and no idea when I will get more money. Damn it, I hate being poor. I am used to getting what I want, when I want.Quote:
Originally Posted by Anonymouse
I haven't flushed them yet. This comming Tuesday, they will be 4 weeks old. Do you think flushing the soil would help? The soil has that built in fertilizer. One can see the little colored balls here and there in the soil. With the built in ferts, would flushing the soil be effective or worth while? Didn't see any flushing guidelines on the soil bag. Maybe I should check their web site for info.
I would flush today, right now the burn will only get worse until you do. The soil and Ph will be a problem for you, the soil will hold onto elements and left unchecked, will block your plant from being fed properly from alkaline build up.
I go real cheap on my Ph, I use paper strips and tweezers but I check it religously.
Fortunately, Cannabis is very tough and will adapt with you
In your experience, what is the best flushing method?