Magnesium Deficiancy?

asyouarei · Oct 22, 2009

Cant pin point the problem

Temp: 75
Humidity: 25
2nd week of flowering (12-12)
400 watt MH bulb
filtered water when needed
used a gio grow(2-.01-6.6) and bio bloom(1.1-2.5-2) 2 weeks ago and had nute burn so flushed and the plants havnt been the same (they had deficiencies before i used the nutes)

I think it may be a magnesium (because of the rust spots) or sulfer deficiency. what do you think there is also some leave that have become spindly

tom__420 · Oct 22, 2009

Yup that looks like a mag deficiency to me dude
I would pick up a mag supplement like calmag+ by botanicare, CaMg+ by general hydroponics, or MagiCal by technaflora to name a few

asyouarei · Oct 22, 2009

could i use epsom salts because there arnt any stores that cary that stuff?

tom__420 · Oct 22, 2009

I guess you can but I would leave that to the foot baths, if you have a deficiency now than the nutes you are using don't have enough mag for the plants
I would use some epsom salt as a quick fix but def looking into a calcium/magnesium supplement

asyouarei · Oct 22, 2009

haa ok sounds good thanks for the help

Green Cross · Oct 22, 2009

asyouarei said:
haa ok sounds good thanks for the help

2nd week flowering - normal nitrogen deficiency :joint:

By the time it's 1/2 done flowering it should look like this

asyouarei · Oct 22, 2009

so ur saying i have a nitro def and not a mag or do i have both ?

tom__420 · Oct 22, 2009

From the same site that GC posted from, here is a pic of what they call a mag deficiency

You should not have nitrogen deficiency this early into flowering

http://www.greenmanspage.com/guides/plant_abuse.html

There is a link. Notice how similar your leaves look to the pic I posted?
That is because you have a mag deficiency not nitrogen
This is what is said with the pic that greencross posted: As seen in figure 10 consumption of nitrogen (N) from the fan leaves during the final phase of flowing is 100% normal.
Would you consider where you are at the final phase of flowering? I sure hope not lol
You have a magnesium deficiency

asyouarei · Oct 22, 2009

that looks like the perfect mg deficiency ever

tom__420 · Oct 22, 2009

asyouarei said:
that looks like the perfect mg deficiency ever

Yup that is what you have, listen to me I wouldn't point you in the wrong direction
I don't give out advice unless I am sure

asyouarei · Oct 22, 2009

will do ill let u know how it goes

tom__420 · Oct 22, 2009

Good luck dude

asyouarei · Oct 27, 2009

tom__420 said:
Good luck dude

i have done three cycles of 2 teaspoons of epsom salts per gallon (halved between two plants)
and nothing seems to have changed except maybe worse, there is more of a darker discoloration on the leaf. the leaves from top to bottom are yellowing with brown tip edges and then dieing. interestingly enough the leaves in the third pick have been like that for a long time and arnt dieing

i dont know whats up

HotelCalifornia · Oct 27, 2009

tom__420 said:
Yup that looks like a mag deficiency to me dude
I would pick up a mag supplement like calmag+ by botanicare, CaMg+ by general hydroponics, or MagiCal by technaflora to name a few

Just my 2 cents.....I would say away from
using the Epsom salt..... :blsmoke:

lonleysmoka · Oct 29, 2009

Did it look anything like these leaves when it started??

Magnesium Deficiancy?

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