Mg/Cal or Zinc def.. Or Too much P. Aeroponic 3kwatt

[Heathro]

Having def.. plants are a few weeks in veg. running GH lucas formula ratio 1micro:2Blm

Before i acidently ran 2micro:1Blm and i swear my plants were heathlier in veg.

3 X 3K watt 3X 4x4 Flood tables. Aeroponic 1200GPH pump.. R/O water

ive been slacking and havnt been monitoring my ppms close enough to dial it in.. i work too much

dumped all res's and they are currently at 350 ph about 5.5 or 5.6 PH.. im waiting till tomorrow to see if the ph changes then i may adjust
some plants show drooping tips like too much nute yet they look like they have a zinc or mg def. So makes me wonder if it is lockout.

Strain querkle. just flipped the switch tonight. 2nd go at aero. first time ran cannolope no problem at all.. this strain has been hard and ive already had to start over once because of root rot

 

[lime73]

Having def.. plants are a few weeks in veg. running GH lucas formula ratio 1micro:2Blm


dumped all res's and they are currently at 350 ph about 5.5 or 5.6 PH..

350 ppm's is low...I would say they are really hungry and could use a good dose of nutrients...sure its not 1350 ppm's, cuz that would be around where you want to be for nutrients, 1000-1500 ppm's in flowering

 

[jpill]

http://growweedeasy.com/home go to the problems&symptoms tab ... hope this helps.

 

[maps84]

I also think they're hungry when they start to yellow during first weeks of flowering, it's time to dial the nutes ups. Just don't do it drastically.

EDIT: I just noticed you're using Lucas Formula PPM simply put cannot be 350 ppm please give us a good reading.

 

[HonestJim]

https://www.rollitup.org/marijuana-plant-problems/488004-guide-chem-deficiencies-abundancies.html#post6648220

 

[laserbrn]

350 seems a bit low to me too. Not seeing any of the obvious signs of overfert, I'd step no the pedal with the nutrients a little bit. I"d go ahead and raise them PPM's up to about 800ppm at this size. I suggest doing it over the course of a few days or a week though. Maybe raise it 75ppm per day.

 

[Heathro]

Not using the exact lucas method.. i monitor the ppms.. the regular method would be at 1300ppm constant which would burn my plants to shit.

Im running aeroponics the ppms are far less others have told me they dont go over 800 a whole grow..

Bumping up everything over the next few days..

 

[donutpunched]

People tell me the same thing with undercurrent... But the PPMs are strain dependent.... I had Alien OG that loved 900 PPM and I have super OG that loves 1450 ppm's... So let the plants tellyou what they want...

 

[laserbrn]

I hear ya on that. It is better to err on the side of caution. They will recover with some feeding if they are underfed, if they are overfed the damage is lasting. When I grew in hydro I seldom had strains that would take what some people here claim to be feeding. 900 or less for me, some never went over 600, but the ones in these pics are saying "feed me".

 

[maps84]

GH nutrients are very forgiving no matter the strain is rare to burn them unless you really mess it up... If you want a softer nute solution just add more water... or scale it down the proper way. Your focus should be in making the environment perfect. Let Lucas do its proven work.

 

[Heathro]

Thanks for the feed back i will be upping my PPM's... Will post updated pics..

Thing about aeroponics.. everything happens insanely fast