mag deficency?? treat or not?

hey all From what I read it looks like mag def., but I don't get why. ph is about 7 in 5 gal soil. I have 5 plants all blueberry at the same age about 5 weeks into flowering, all trichs clear. About two weeks ago I gave a good watering with scheduled fox ferts and this plant started this looking like this almost imediatly. But this is the only one that had any reaction. I wonder if I should do anything or just let the girl finish on schedule, as the colas and buds seem pretty healthy. Why would one plant react so differently from the others?


Treat or Let Go????


ThanksIMG_0270.jpgIMG_0271.jpgIMG_0272.jpgIMG_0273.jpg
 

Coho

Well-Known Member
Add some calcium too. So calmag if you want both. Seeds or clones? Seeds have different genetics from each other. Blueberry strains can be picky as shit.
 

mrpeoples

Active Member
Add some calmag but don't do what my friend did and add it on top of other nutes..... keep your EC/PPM nice and low
 

*BUDS

Well-Known Member
When you lose leaves like this at week 5 your final weight suffers. Its due to either from the PH being out, pot too small making it rootbound and salt build up. Next time a bigger pot and keep ph at 6.5 throughout the grow. That size plant needs at least 15 gal.
 

Coho

Well-Known Member
Thats the bitch problem solving online. Too wet,pH,soil,rootbound,calcium, on and on.....I spaced on lockout.
 

lahadaextranjera

Well-Known Member
Mg isn't absorbed at high EC levels or in wet or acidic soil. How about just watering a couple of times without food?

You may as well remove leaves that are more than 50% damaged.
 

GreenChile

Active Member
Well it looks like you have a nutrient deff ontop of a magnesium deff.
Magnesium buildup can make your bud smoke harsh, so if you chose to add a magnesium supplement make sure you use a liquid Cal/Mag rather than using Epsom salt since you are so late into flowering.
Next time remember, always add a little Cal/Mag or Epsom salt to your waterings :)
Calcium and Magnesium must be balanced so the rule is this:
If you water with Reverse Osmosis water, always add some Cal/Mag
If you water with tap water, always add a little epsom salt as tap water (usually) has a high concentrate of calcium, so if you dont add a little epsom salt to tap water, you can over "calciumate" (I know thats not a word) your soil which will lockout magnesium. (I had a bitch of a time learning that)
 
thanks for all the advice. I'll try a little liquid cal mag. I water with well water so I assumed I would get a lot of minerals, though I haven't tested it. My other four are good so I am mainly concerned with maintaining quality and not quantity(personal use only). Also I am in 4 1/2 gallon pots, shouldn't that be enuf for a 4' plant. I do always seem to have roots everywhere in all my plants from ladies to clones to mothers. My mother are in smaller pots with virtually no nuts to keep their size down. will this cause me problem like rootbound. These all arte from seed so that may explain why only one plant reacted this way.
 
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