Phosphorus...Calcium...both?

[MesaBoogie]

After consulting GreenLeaf of the composition of the balls in the the mix.
I didn't like their answer.

Yea MC is a real pain when mixing by g/gal. You just can't get a proper ratio of balls/powder for a consistent PPM. How did you grind up your mc ? Was it a big smelly cloud of a mess ? I wonder if there is some sort of reason Megacrop doesn't do this in the first place ?

Sorry for the minor thread hijack ! :smoking:

 

[GeorgeCloney]

Yea MC is a real pain when mixing by g/gal. You just can't get a proper ratio of balls/powder for a consistent PPM. How did you grind up your mc ? Was it a big smelly cloud of a mess ? I wonder if there is some sort of reason Megacrop doesn't do this in the first place ?

Sorry for the minor thread hijack ! :smoking:

Not a problem
This is what it ends up looking like, and I much prefer it this way.
I suspect their chemical supplier ships it this way.
The components are probable meant to be dispersed with agricultural equipment.
And balls make for easier movement in machinery.
Powder would get blocked up.
I ground it up in a pistle and morter (by hand!).
It took about 1 hour to do a pound.
I'm not looking forward to doing the 20 pound bag I bought last month

I'd recommend doing it in an old hand crank coffee grinder.
Or maybe even a pepper mill.

I'd like to get a cheap pepper mill that comes preloaded with pepper and give that a try.
One with a handle.

 

[Waira]

I feed:
Megacrop @3g/gal
Sweet candy@1g/gal
Greenleaf Nutrients CalMag @2g/gal
Bud Explosion 1g/gal
Recharge 1tsp/gal (1xweekly)
Mammoth P 0.6ml/gal (1xweekly)
Ph 6.3

I run COBs 20/4 schedule. I recently added lenses to increase intensity. VPD is something I pay attention to, but during flowering I let humidity go lower than my temp dictates. Currently 55%rh/75°(air temp).

I flushed a couple of days ago when this pic was taken and have removed the reflectors on the lights near this gal.

Those lenses may have been the problem,... Again, how far away?
MC has plenty of Ca/Mg in it, I recommend dropping the extra Ca-Mg.... Too much Ca/Mg will screw with the uptake of other nutes, and build-up in general of nute salts will contribute to this,.. Your dosing is OK otherwise; input pH does not reflect actual in-pot pH, BTW, so looking into that might be needed... Also, a clear water light flush might be smart too, just to see what kind of ppm's come out and see if build-up is a problem...*( oh, you did that already, nevermind)* While not coco, SS#4 is still a soilless medium, devoid of nutrients. If you do a light flush, test the run-off for pH and ppm's to see where it's at, and how much it drops as you go... Most savvy MC/GLN users are running about 500ppm total (nutes only, not including water base ppm)... Dropping the Ca-Mg will allow more wiggle room for MC, complete balanced nutrition....
Knowing GLN products like I do, watch out for your K inputs as well,.. SC, BE are both LOADED with K, MC is rich with it too,... I don't see K toxicity, but that too can start to mess with uptake of other cations,...

 

[Mr.Prospector]

Those lenses may have been the problem,... Again, how far away?
MC has plenty of Ca/Mg in it, I recommend dropping the extra Ca-Mg.... Too much Ca/Mg will screw with the uptake of other nutes, and build-up in general of nute salts will contribute to this,.. Your dosing is OK otherwise; input pH does not reflect actual in-pot pH, BTW, so looking into that might be needed... Also, a clear water light flush might be smart too, just to see what kind of ppm's come out and see if build-up is a problem...*( oh, you did that already, nevermind)* While not coco, SS#4 is still a soilless medium, devoid of nutrients. If you do a light flush, test the run-off for pH and ppm's to see where it's at, and how much it drops as you go... Most savvy MC/GLN users are running about 500ppm total (nutes only, not including water base ppm)... Dropping the Ca-Mg will allow more wiggle room for MC, complete balanced nutrition....
Knowing GLN products like I do, watch out for your K inputs as well,.. SC, BE are both LOADED with K, MC is rich with it too,... I don't see K toxicity, but that too can start to mess with uptake of other cations,...

Lights are 42" above the top of the medium in my pots, so probably 24" for this girl. My lux meter reads about 25,000 on her.

My MegaCrop is an older version i bought when they were re-formulating to include more calmag...mines not the "new" formula. Next feed I'll try without adding Calmag.

Top-dressed all of them with a tsp of Epsom each and watered that in this morning before reading your response.

Ive written in my journals and posted elsewhere that my garden always seems to reach a point where it goes from very healthy to this race to keep them "healthy enough" just to get them to the finish line in decent shape.

I didn't know SC had K, but from what I've been reading, i see that the amount of K in BE may be best suited for early flower. I have some Bloombastic left that's more along the lines of 0-14-15, I'll switch to that to finish these.

I wish I'd have checked the runoff when i did the big flush. I'll give this one a small flush and check it later when im in the garden.

Thanks for the response

 

[Blu_tri]

Raise your cobs about 6 inches. Give ladies some water. They are thirsty.

 

[Mr.Prospector]

So, after removing the reflectors nearest the gal in the picture 3 days ago, she is easing up on the tacoing and looking better. It's amazing the amount of intensity the reflectors add to these lights.

The spots on this gal that prompted my post haven't spread or gotten worse, so maybe the big flush and Epsom have helped. The color has improved. Everyone in the tent is looking happier since the flush.