URGENT! Magnesium/zinc deficiency before flower?

Boston710

Boston710

Member
Hey guys, just need some quick help finding out what is causing these problems... I've been seeing yellowing/bleaching between veins on all my top newer growth, cant seem to figure out why.. I feed with 6ml general hydro micro, 9ml gen hydro bloom, and 1 gram of kool bloom powder. My soil is ffof and they are in 7 gallon fabric pots. Also I feed every other watering, so water, water, feed... I tried flushing about 5 days ago with 4 gallons of ph 6.5 water on one plant, and it seemed like she really didn't like it, all leaves curled up, and clawed, it was the worst she's looked.. as soon as I fed her again, the leaves perked back up, but the yellowing got noticeably worse overnight.. at this point I have no idea what to do, but I really need to put them into flower asap as I'm a single space grower, and I'm running out of room super fast! I'll show some pics...

This is how they look at the moment..
20180106_061157.jpg 20180106_061241.jpg

SUPER tight on space need to flower asap 20180106_061515.jpg
20180106_061455.jpg

And this is how they looked after the flush/before my last feeding
20180105_064513.jpg

Hope i can get this figured out asap, really challenging my space here.. thanks for the help guys!
 
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Boston710

Boston710

Member
chemphlegm said:
a few issues I notice ^
you are over feeding these, they look great but about to lock up if you keep on.
try plain water when soil is dry to the bottom only.
Click to expand...
Do you think it's from overfeeding? My runoff ppm was 640 last time i checked, This was on the 2nd watering
also generally what ppm should I be feeding for soil? They're about 75 days in veg.
 
Nutty sKunK

Nutty sKunK

Well-Known Member
'Tis def a Zinc issue. Probably locked out due to feeding habits.

As Chem said, water only and dry them out thoroughly.

What water are you using? Do you even know what's in it?
 
chemphlegm

chemphlegm

Well-Known Member
Boston710 said:
Do you think it's from overfeeding? My runoff ppm was 640 last time i checked, This was on the 2nd watering
also generally what ppm should I be feeding for soil? They're about 75 days in veg.
Click to expand...
honestly I believe you water too frequently. you checking ppm run off is one clue. yes, I believe you are over feeding these girls.
They have plenty of nutrients in the soil now to bring you right ot flower cycle. you could even stop using fertilizer in veg even.
tighten up your watering habits. Then in flower break out the organic fertilizers.
I feed with organic chicken shit with some calcium in it, thats it, never a deficiency or issue. not sure of ph, ppm's.
I been following the directions for years, afraid to learn why it works so well....

if you water when your bag is still wet at the bottom you are causing some of these issues. allow the bag to dry to the bottom, right before the plants wilt for best results.
6 gallons of dirt needs 1.5 gallons of water added when container is dry, each time, with no worries of run off, just do it for the life cycle of the plant for best results.
you can change to organic feed anytime in FF with great results. I suggest Organicare dry fertilizer, per instructions.
 
Roger A. Shrubber

Roger A. Shrubber

Well-Known Member
think they're getting too much of everything but nitrogen. i'd cut out all the bloom and flower nutes for a few days and feed veg food at about half strength, bet it'll clear up that yellowing. don't go to the full flower schedule till after the flip, when the stretch is pretty much done.
 
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