Have a question about flushing and giving more nutes.

[Internode]

This is the trouble I always had with soil and salt based fert. It is likely salt accumulation in your soil causing this, I can tell by the rust spots on the leaves that there is also likely cal-mag deficiency probably due to this fert salt build up. IMO, soil is hard to rebound without causing problems in flower. If they were mine, I would flush to get rid of the salts, remove the top layer of soil as far down as you can without disturbing the roots, top dress with fresh soil and water in maybe 1/4 strength cal mag and let her finish with just regular watering... With 3 weeks left, things are going to start to ripen and fade anyway, your fade is just starting a bit early.

 

[Foothills]

Since your ph is 6.2 in a soil grow, take a look at a ph/nutrient lockout chart.They come in real handy !!

 

[bravedave]

This is the trouble I always had with soil and salt based fert. It is likely salt accumulation in your soil causing this, I can tell by the rust spots on the leaves that there is also likely cal-mag deficiency probably due to this fert salt build up. IMO, soil is hard to rebound without causing problems in flower. If they were mine, I would flush to get rid of the salts, remove the top layer of soil as far down as you can without disturbing the roots, top dress with fresh soil and water in maybe 1/4 strength cal mag and let her finish with just regular watering... With 3 weeks left, things are going to start to ripen and fade anyway, your fade is just starting a bit early.

I was instructed years ago to water until runoff and pour off/suck out the runoff and it would eliminate salt build up...and I have never had any. You ( and others) make it sound like its unavoidable. It's not.

 

[HarveyHarvester]

could it be a pH. problem?

flushing will sorta "reset" everything and i think is a good idea for you to do.
just run a bunch of plain (pH. adjusted) water that has sat with the lid off for a day or two in order to burn off the chlorine thru it. that will leech out everything.
Let it dry out for a day or so and start feeding again.

 

[Shawn Dotson]

I always water with more than it needs and usually end up with about 1 gallon of runoff that I drain out of the pan afterwards. Every watering I have anywhere from 1/2 to 1 gallon runoff.

 

[HarveyHarvester]

ok, do that three times, let it drain good between each.