please help!! is this Mg issue?

S

Shroomly

Well-Known Member
hi everyone,



Im pretty sure that two out of these 5 plants have a mg deficiency... I posted something a while back and never actually got a solution from anyone int his forum, so this is a 2nd hopeful attempt.

I bought some epsom salt and i sprayed some on my plant last week. i did this for 4 days and the leaves on both plants seemed to get worst. so then i sprayed the leaves with some biobizz fishmix (diluted well) twice. still no signs of recovery. the new leaves start green and after a few days they turn like the rest on the plant.

as you can see from the picture that has all the plants, only 2 are affected. ALL plants are treated exactly the same, so im not sure how the hell this happened!!!

the quesiton is, do i need to put epsom salt in the soil? or do i need to flush? if its flushing, how many times? if its epsom salt, can someone PLEASE give me a clear instruciton on how to use it in water. Everywhere i read it says 'this much to the gallon' but never states if its a british or american gallon. anyone know the litre ration for epsom salts? and how many times do i water the plant with the epsom salts?


PS. at the moment the only nutrients the plant got is biobizz fixhmix (spray on leaves) and biobizz GROW about 1 or 2 times a week.


thanks a lot for the help guys!!!:joint:
 
S

Shroomly

Well-Known Member
bump....


ANYONE???? Haven't used this forum in a while, but it used to be good and full of instant replies to every problem.... annnyoonnnee?????
 
knowing

knowing

Well-Known Member
"All green plants produce their own food from water, CO2, and light, by a process named photosynthesis. The chlorophyll molecule, which is essential to photosynthesis, is coloured green and contains one atom of magnesium. So adequate magnesium is absolutely vital to the growth of green plants.

If there is a shortage of magnesium in the plant´s nutritional intake, an early indication is the yellowing of leaves. It is easy to remedy any deficiency by feeding a dilute solution of Epsom salts, MgSO4, in a concentration of about a teaspoon to a gallon, two or three times in the growing season; a little goes a long way."

The best way to apply Epsom salts to a plant is to dilute it with water and apply as a spray that can be absorbed quickly by the plants. To make this spray combine 1 teaspoon Epsom Salts with 1 american gallon of water.

Epsom Salts will correct a problem when too much natural salt is in the soil. Too much salt can cause the root cells to clog making it difficult for the plant to take up water and nutrients. Epsom salts make a world of difference to houseplants that have been in the same pot for a long time. It will clear out the accumulation of natural salts in the pot that can be interfering with fertilizer uptake into the plant.


"But magnesium deficiency is not the only cause of leaf yellowing - a shortage of nitrogen can have similar symptoms, but this is MUCH less common as most of us routinely feed nitrogen-containing ferts. Some pests, such as red spider mite, can cause leaf yellowing, as can a whole host of viruses to which your ladies are susceptible. And don´t forget it is normal for the lowest leaves on the plant to yellow and die. They have done their job, and your buds are now being fed by the products of the photosynthesis being carried out by the fan leaves."

GL.


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F

fixitquick

Member
hello, I just wen,t through a nute burn and the discoloration looks same, although my leaf tips died off. and it was ,nt all the plants.Im hydro so all plants get the same nutes.
 
Saerimmner

Saerimmner

Well-Known Member
epsom salts are easy, either sprinkle a load on the soil and water thru it or put sum in with ur water and use it that way, as for quantities.....jus grab a small handful and chuck it in ive used between a few spoonfuls up to a decent sized handful and neither have ever done anything other than what i need em to
 
S

Shroomly

Well-Known Member
good point mate, i was about to put that in :)

the run off water ph on one of them came up to 7.4 which didnt seem right at all.... would you suggest to flush?

am i correct to say that ph of runoff water should be around 6.2-6.5 in soil?
 
DobermanGuy

DobermanGuy

Well-Known Member
no do not flush, just start giving lower ph'd water. 7.4 isnt that bad. i put 6.2 into my soil. Dont worry about the runoff as much as what you are putting in. Just pay attention to you water(in) not so much the water(out). and water untill you get 10% runoff. internal ph will take care of itself.

nute burn from foliar feeding, maybe, is what it looks like to me.

when i do foliar feed (which is rare) i give 200-400 ppm, and not a full dripping-wet douching either.

nvm just one of your plants is that way, dont know.
 
doc111

doc111

Well-Known Member
Shroomly said:
good point mate, i was about to put that in :)

the run off water ph on one of them came up to 7.4 which didnt seem right at all.... would you suggest to flush?

am i correct to say that ph of runoff water should be around 6.2-6.5 in soil?
Click to expand...
Testing runoff is NOT an accurate way to check pH in soil. You need to start with soil that's already in the proper range. Then just make sure that your feed solutions are pH'd properly and that your water is ok. It could take a week or so to see improvement. Are you using tapwater or distilled/R/O? What kind of soil?:blsmoke:
 
S

Shroomly

Well-Known Member
soil was fine to begin with as im using biobizz all mix.

my water usually ranges between 6.1-6.6 when i feed the plant... really not sure what happened to those 2 plants as the rest are fine. Almost makes sense that its not Mg and just foliar feed burn, as I might have used the mg spray and fishmix spray a bit to obsessively..


nice one guys!
 
doc111

doc111

Well-Known Member
Shroomly said:
soil was fine to begin with as im using biobizz all mix.

my water usually ranges between 6.1-6.6 when i feed the plant... really not sure what happened to those 2 plants as the rest are fine. Almost makes sense that its not Mg and just foliar feed burn, as I might have used the mg spray and fishmix spray a bit to obsessively..


nice one guys!
Click to expand...
Soil is more forgiving but it can also cause issues not typically seen in hydro. I'm not sure if this soil has organic nutes like FFOF or not but sometimes soil has "hot" or "cold" spots in it due to inconsistent mixing of the soil or clumps of guano or something like that. That could be the cause of this mystery problem.
 
S

Shroomly

Well-Known Member
interesting... definitely a possibility as i've reused this allmix from my last grow. I did however get rid of the to layer, and then mix in a tiny bit of bat guana high with N, some worm humus, and some standard growing soil with peat.


i didnt feed it any guano apart from that tiny bit in the soil and its only been getting fishmix spray and biobizz grow (3ml/litre)
 
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