Day 14 flower signs of mag deficiency

sourdieselyumyum · Jun 23, 2015

Gonna try and keep a log on this to see if I can fix the problem I've been having in coco for the last few runs. Looks like early signs of magnesium deficiency. Rest of plant look healthy and green. Couple pics of other plant looks like some nutrient burn.

Hotboxbudz · Jun 23, 2015

I think your right about the mag. Just going by the pics I think it's not N burn, looks more like potassium def.

BygonEra · Jun 23, 2015

Doesn't look like mag def to me... you will usually see a stripey look to the leaves as the leaf veins remain dark green and tends to start at new growth. Plant looks very healthy to me... if anything I would potentially add a little more micro next time you water. Could be sulfur? Be careful as it definitely looks like you have a little nute burn going on.

sourdieselyumyum · Jun 23, 2015

I'm using cns 17 bloom last water was 750ppm with 800-900 ppm runoff pH between 6.3-6.4 runoff. Today I watered with 300 ppm calmag/hydroplex runoff ppm was between 600-750 ppm with similar pH. Maybe I should flush with flora kleen then water in 600-700 ppm bloom with Epsom salts

Hotboxbudz · Jun 23, 2015

sourdieselyumyum said:
I'm using cns 17 bloom last water was 750ppm with 800-900 ppm runoff pH between 6.3-6.4 runoff. Today I watered with 300 ppm calmag/hydroplex runoff ppm was between 600-750 ppm with similar pH. Maybe I should flush with flora kleen then water in 600-700 ppm bloom with Epsom salts

Looking at it again with this new info. I feel you have a phosphorus toxicity and its locking out your trace elements.

sourdieselyumyum · Jun 23, 2015

Phosphorus toxicity from the hydroplex? It's a 0 10 6 I put 2ml per gal which is less than 1/2 recommended rate

Hotboxbudz · Jun 24, 2015

sourdieselyumyum said:
Phosphorus toxicity from the hydroplex? It's a 0 10 6 I put 2ml per gal which is less than 1/2 recommended rate

Yes, its that or root rot. Check your roots if they are looking white and clean, I would do a flush.

sourdieselyumyum · Jun 24, 2015

It's progressing on one plant pretty bad I'm gonna flush with ro water tomorrow then add straight cns 17 bloom with about 50-70 ppm epsom salt

Diabolical666 · Jun 24, 2015

looks like past overwatering damage...flushing might not be a good idea

sourdieselyumyum · Jun 24, 2015

The one that is showing most damage is in 3gal coco smart its almost completely dry every other day the others are in 2gal smart pots coco and they are bone dry every other day. I know they say that runoff pH isn't accurate but in my past grow where the runoff pH was in range of 5.6 -6.2 I had little problems if any. Hoping that if I flush then feed it will bring them closer to 6.0 range 6.3-6.5 is pretty high to me.

sourdieselyumyum · Jun 28, 2015

Day 19 of flowerPlants starting to show more signs of the deficiency. I don't really think it's burn. I flushed then watered yesterday with 700 ppm ph to 5.6 runoff off was pretty consistent with every pot reading 6.4 with around 680-750 ppm. Lower leaves have be dying for awhile now.

polishpollack · Jun 29, 2015

these plants need some nitrogen. that bloom fert might help as it appears to have some nitrogen to it. keep us posted.

patrickkawi37 · Jun 29, 2015

When your ph comes out higher and your ppm is not much higher than what it's going in. Usually means they need more food for me.. I would hit 250-300 ppms of cal mag on top of non ro water then add your regular feed to get it to 850ish and see how it goes . If you do have a mag deficiency that should fix it.

Don't use the brick coco I always get lock outs in that garbage.

GrowinWizer10 · Jun 29, 2015

nitrogen they need some nutes to darken and berry up on them nugs over there its an easy see from the light green fade

sourdieselyumyum · Jul 2, 2015

here they are at day 23 it is still progressing I watered with cns 17 ripe as I think it might be a phosphorus deficiency. Guess will see how they look at day 28

Hotboxbudz · Jul 3, 2015

I still say its getting to much phosphorus. Signs of phosphorus toxicity,

new leaves grow blades thinner
new leaves grow intervainal chorosis
Yellowing from the top downwards
Middle of the plant leaf tips and margins burn
Less internodal space
Diminished harvest
Zinc and iron micro nutrient deficiency
Calcium and magnesium deficiency
Lower leaves curl and develop spots
Dry buds will have a chemical taste
Root tips rot and die back

sourdieselyumyum · Jul 8, 2015

Day 28 watered with just 250 ppm of calmag runoff between 700-900.

GrowinWizer10 · Jul 8, 2015

ive never done runoff water at all especially in soil, its a waste of time in my book, it only matters what is going in and i do it by tsp or tbs per gallon and ph

sourdieselyumyum · Jul 8, 2015

Idk Im just gonna document this last grow of this strain for reference and am gonna go back to critcal kush strain I can get good yields with. The first run on this strain went damn near perfect running same nutes and ec.

Day 14 flower signs of mag deficiency

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