Mag def, end of flowering..hmm?

[Opt1983]

sorry, no pics people.

So, im about 40 dayz into flowering and one of my white rhinos is putting off ...what looks to be a mag def. I use dolomite lime in my mix at a rate of 2 TBS per gallon of soil.. If i'm correct about this mag def. ... should i use some epsom salts for my next watering? if so at how much to every gallon of water? this same plant is also showing discolored tips on some of the leaves...should i just let her go until chop..or give her a dose of the epsom salts? what ya'll think?

Medium used:
Peat moss
perlite
worm castings
dolomite lime @ 2 TBL's per gallon
Blood meal
bone meal
kelp meal

100% organic...also have used some thrive alive b1 (green) all throughout veggie stage..sure it has no effect since i havent used it in several weeks.

thx -Opt

 

[Blackmelo]

Hey Opt, sry to hear they are suffering.

My rhino only looks about half done at day 40. I'm leaving mine go till day 60, so they have still got 1/3 of their flowering life left. I would definetely think of getting some Epsom salt if that is what they need.
As long as you are sure it is a magnesium deficiency then it can only do good.

Right amounts of Epsom salt are 1-6 teaspoons per 10l (or 1 tablespoon per gallon).

I feed 1 teaspoon of Epson Salt in vegg and 2 teaspoons in flowering just to ammend my ferts since all ferts contain too little mg for cannabis.

then if I have a deficiency I feed between 3-4 spoons per 10 litres.

Gl man.

 

[Opt1983]

I'm not 100% sure that is the problem, i'm not too good on diagnosing problems since i've had very few throughout my career! But, i am pretty sure this could be the problem, and i doubt it will hurt them much to give them a dose, i'll go light. As for my WR's..the only one suffering from this problem is the shortest of the bunch..dont kno why, she is producing 1 big huge bud..my others are branching out pretty nicely. The plant i have concern for right now is looking like she'll go another 1.5-2 weeks. As for my other WR pheno..she just keeps growing and growing...not height wise, but bud wise... not near as compact as my short pheno thats having the so called mag def. From the looks of it, she will go at least another 2.5 - 3 weeks..unless she does some serious swelling soon. Thx for the comment bro, i appreciate it. -Opt

 

[mace_ecam]

the WR i know is growing very vigorous, overgrows any place in no time especially in stretch, maybe you where feeding a bit too low back then, now showing in defs.

Its not uncommon to have defs at the end of flower, unless you like the taste of overferted buds.

If you choose to add Mg, be very careful, too much now and there is no way you're gonna get it out again by harvest.

 

[Blackmelo]

mace ur right, it is not uncommon but that sure doesn't mean that is how it is supposed to be.
Organically ferted buds that were ferted right to the end will taste as good if not better than chemically grown and flushed bud.

Opt, sounds like the right thing to do. You can get Epsom salt at any big pharmacy. I would feed about 3 teaspoons per 10 litres or 1 tablespon per 2 gallons if I was you...

 

[Opt1983]

Yea man, i'll give it a shot..... i have the epsom already, will be using a tad later when the lights come back on. I'm not too worried bout the taste of my bud..i've never had a problem with that, i just want them to fill out as much as possible..and i kno this is slowing her down a tad bit. I'm only watering like once every 3-4 days now, so i guess i timed it right, they should be ready for a drink later on today. -Opt

 

[10k]

Arrrrgh... wayyyyy toooo high dosage levels recommended above for epsom salts imho.
Especially considering that you're already using dolomite lime in the soil mix, and you stated that all the other plants are looking just fine.
So now that you've mag'd the hell out of that plant, how's it looking ?

A picture would be priceless here imho. (any chance you could borrow a digicam ?)
I have serious doubts that the plant is suffering any mg def at all, and am leaning more towards it just being a plant in the later stages of flowering or one thats not getting sufficient air movement at night, rust spot looking symptoms of which are often mistaken as a mg def

Other than that, I must ask you about your rooms air circulation and exhaust schedule.
Are you moving the air during the dark periods of your 12/12 light cycle ?
Is that one plant with the symptoms one which is off in a corner of the space, or somehow being blocked as far as receiving decent air movement at night?
Are other plants in that area of the grow space begining to show the same symptoms ?

If you cant display a picture, could you please give a more detailed description of what you're seeing on the plant(s)? (what area is affected, where it begins and how it's progesssing)

How about a picture ?