Yellowing @ week 5 . Every time.

Old Thcool

Well-Known Member
Sounds like they are gobbling up all the available N during their growth spurt thru the stretch and coming up short after. They use a lot of N during the stretch and with organics it takes time for the bio-herd to reduce the organic components into the salts the plants need to feed on.

You might want to try adding the guano when you begin flowering so it has time to be made available when needed.

Soil temps are important as well. If too cool the bacteria and fungi slow down and that reduces available nutrients. Do you add any beneficials to your soil during the grow or sweeteners to support their growth?

I use soilless and hydro nutes myself but have read enough about organics in the last 40 years to know there are a lot of biological factors going on under the surface that need tending to so you get the best results.

I found a great spot to download FREE POT BOOKS. I downloaded a grow bible first and got lots more. Books look great and complete like the real ones I have here. No web site but just a page of links. Just right click on what you want and then "Save Link As" to download so they don't open first as some are 50+ megs. They got lots. Enjoy.
Hey I love your Avatar ! You can now use a Monsanto pot leaf too!
 

Jimdamick

Well-Known Member
Fox farm, ocean forrest, using botanicare complete system. As recomended by their schedule. Ph always in check. Tried extra cal-mag. Tried adding x-nitrogen through bat guanno. Yellowing starts about week 4 of flowering. Never lets up. Cant get a handle on it. Plants do awesome right up to this point.
It's completion of the plants life cycle.
If you have had a healthy vibrant plant that was doing great at 6 weeks, but suddenly started to yellow, you know what you have now is a mature plant that is almost ready to be harvested.
That's the way it works, nothing wrong with your plant.
Enjoy
 

TheHarvester

Active Member
Rh - 45%
Temps - mid to high 70s
!k hps
Feeding via botanicare line-up per gal
feed once water once
Sealed room. Just turned off co2
Plenty of air movement.

I'm pretty sure they call for every watering don't they??

Also if you're throwing nutrients at it to correct the problem and nothing happens, it could mean a ph issue. slightly out of range, giving the deficiency.

Is that grow media peat based?? Lime should be added to prevent the from slowly getting more acidic. Even top dressed later in the grow to replenish it.

Peat has a PH of 3.5 I believe.

The ocean forest might be PH'd to 6. whatever when they put it in the bag. That's doesn't mean it will stay that way for ever. Things wear out. and less additives means more profit. ;o)
 
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