Yellowing leaves...bit of help please?

[GreenGopher]

Hey all, I picked up some clones about a week ago (12/2) and they came with about 2 or 3 yellow leaves. This isnt a big deal to me, but some new growth is also turning yellow at the tips and the outter ridge of the leaf. Im guessing this is nute deficiency, so I started its feeding today. Just looking for some expert opinions as well. Another question involving nutes, FF feeding schedule says to give Big Bloom for the first week of veg, why is this? As I understood it was Big bloom for flowering, big grow for veg. Heres my info...

Light: 400W HPS
Location: Broken Sauna in garage, So Cal
Plants: 3xHeadband 3xLA Confidential
Soil: Fox Farms Ocean Forest
Nutrients: Fox Farms Grow Big for Veg, and Fox Farms Big Bloom for Flower
Temp: Day - around 75-80 degrees, night 65-70 degrees and humidity never gets above 30%
Others: Oscilating fan 24/7 on plants, 6" inline fan for light, 2.5 Gallon Lowes buckets (holes drilled in bottom for drainage) and 5 Gallon pots for transplant later, and a thermometer.



Heres a pic....

GreenGopher Reviewed by GreenGopher on 12-10-2010. Yellowing leaves...bit of help please? Hey all, I picked up some clones about a week ago (12/2) and they came with about 2 or 3 yellow leaves. This isnt a big deal to me, but some new growth is also turning yellow at the tips and the outter ridge of the leaf. Im guessing this is nute deficiency, so I started its feeding today. Just looking for some expert opinions as well. Another question involving nutes, FF feeding schedule says to give Big Bloom for the first week of veg, why is this? As I understood it was Big bloom for Rating: 5

[polishpollack]

Needs nitrogen but since you just started feeding, the change will take time. Also, how dry is you soil. You want it to dry but don't forget to water when you need to.

[purpleskunk777]

Needs nitrogen but since you just started feeding, the change will take time. Also, how dry is you soil. You want it to dry but don't forget to water when you need to.

I'd have to disagree.

I think the soil pH is the issue, locking out nitrogen and some other micronutes. The soil you're using (FFOF) is already packed with nutes. Since your clone's only a week old, lack of nutes is likely not the issue.

Do a runoff test according to the link I've posted below and let us know what the results are! My suspicions are that the soil's a bit acidic :wtf:

http://boards.cannabis.com/plant-pro...hy-how-do.html

Also, for your reference look at this chart:

[polishpollack]

skunk, it's fine if you want to disagree, but there's no info given in the post that pH could be a problem, other than perhaps the appearance of yellow leaves. Typically, leaf yellowing at the lower levels of the plant usually indicate that the plant isn't getting enough nitrogen. This is shown in a common pattern of yellow at the bottom and working its way up because the plant is pulling nitrogen out of the bottom leaves to use for growth at the top. Why you'd think pH is a problem I don't understand, but then it's been very common in forums like this to insist that pH is usually the cause under the rationale that it's causing "lockout" of nutes. It's true that pH is an issue in plant growth and I'm not saying it isn't, but I don't think it's quite the problem everyone makes it out to be. There are two issues in these forums that people always focus on - pH is one and the other is either rootbound or root rot. Conditions have to be way out of whack for these things to take place, not that they can't happen. They can and do happen, but the likelihood is small. So yes, it's good to pay attention to pH and it's good to transplant when the plant is big to avoid rootbound. Root rot is a bizarre thing all to itself and it has a tendency to take place when roots are constantly exposed to excessive water when growing in soil, usually accompanied by high temperatures. The lack of oxygen is really the problem, as soil that is constantly wet allows to fungi to grow and begin killing the roots. In hydro, we're not going to see this happen if the roots are constantly exposed to water that is saturated with oxygen.

Greengopher, you're right about your understanding of a veg and bloom fert schedule. I only have a guess as to why FF would say bloom in the first week and that is probably due to a lower nitrogen content. FF soil in my experience has been great and I've never checked pH. I'm trusting the company to get it right and they do. Why would they make a soil that is going to cause customers trouble? If that happened I don't think I'd buy their product again. The thing to do is fert that plant but not much. I'm going to guess that since it was a living clone as of Dec. 2nd, that is more like 3-4 weeks old now, at least. Remember that a clone was growing on a mother plant before being cut. Whoever had it first didn't give any ferts.

[purpleskunk777]

Respectfully, on second thought the problem could very well be a Nitrogen deficiency; the yellowing patterns are indeed characteristic of this. If pH was indeed the problem you would see other nutrients locked out as well, which is not the case. Also, FFOF tends to be very well balanced in terms of pH.

Why you'd think pH is a problem I don't understand

I originally thought this might be a pH issue because the soil, FFOF, typically contains enough nutrients to last a month or so. Since the clone was purchased on 12/2, I assumed the plant was less than a month old. Also FFOF contains peat, which when broken down acidifies the soil. Since Nitrogen gets locked out at lower pH's, I arrived at this conclusion.

[WashougalWonder]

I did not read you two's little tizzie there.

He is in Ocean Forest and should not need nutes this soon.

I question if the pot is too big and the roots aren't getting enough or, worse, having stagnation down in the bottom. It does look like an N deficiency, but I do not believe the OF will be deficient that soon.

How long in this pot of soil? How tall? Do buckets have good drainage? What kind of water....PH of water?

Fill out the troubleshooting form and the additionals above that are not included in the form.

At least it is a female.:thumbsup:
Thanks.

[polishpollack]

The bucket is only 2.5 gallons and from the photo, it looks like it's only about half full of soil or maybe a little more. This isn't much soil. I don't know how long FFOF is suppose to be good for on it's own, but I don't think such a small amount of soil will last long. Don't fertilize it too much. I'd transplant to a five gallon bucket and make it full of FF soil. I prefer FF powder ferts over liquid as the powders you just put in the soil at a ratio of about 1/2 cup of fert for every two gallons of soil and just water when you have to. Takes all the guess work out and there's no need for a meter. Since it's been a few days since you've ferted, what is the outcome?

[gypski]

Hey all, I picked up some clones about a week ago (12/2) and they came with about 2 or 3 yellow leaves. This isnt a big deal to me, but some new growth is also turning yellow at the tips and the outter ridge of the leaf. Im guessing this is nute deficiency, so I started its feeding today. Just looking for some expert opinions as well. Another question involving nutes, FF feeding schedule says to give Big Bloom for the first week of veg, why is this? As I understood it was Big bloom for flowering, big grow for veg. Heres my info...

Light: 400W HPS
Location: Broken Sauna in garage, So Cal
Plants: 3xHeadband 3xLA Confidential
Soil: Fox Farms Ocean Forest
Nutrients: Fox Farms Grow Big for Veg, and Fox Farms Big Bloom for Flower
Temp: Day - around 75-80 degrees, night 65-70 degrees and humidity never gets above 30%
Others: Oscilating fan 24/7 on plants, 6" inline fan for light, 2.5 Gallon Lowes buckets (holes drilled in bottom for drainage) and 5 Gallon pots for transplant later, and a thermometer.



Heres a pic....

Big Bloom is an all around nutrient. Use Tiger bloom for flowering along with Big Bloom in both veg and flower. Big bloom says it for the roots and hidden parts of the plant and purports to aid in limiting salt build up. :twocents: