Calcium deficiency

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SensiSm0ke

Member
is it possible to use calcium carbonate to prevent calcium deficiency by watering the plants with it? if so how much per gallon of water/soil.. thanks
 
Figong

Figong

Well-Known Member
SensiSm0ke said:
is it possible to use calcium carbonate to prevent calcium deficiency by watering the plants with it? if so how much per gallon of water/soil.. thanks
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Well, the Cal/Mag are paired together for a reason... but if you have hard water, and go higher Cal with something like calcium carbonate, you can actually cause Mg def.. of which the first symptoms would look N-def, until you get rusted spots dotted throughout the leaves. Not recommended, but it's possible if you're careful and find another source for the Mg.
 
S

SSHZ

Well-Known Member
Figong said:
Well, the Cal/Mag are paired together for a reason... but if you have hard water, and go higher Cal with something like calcium carbonate, you can actually cause Mg def.. of which the first symptoms would look N-def, until you get rusted spots dotted throughout the leaves. Not recommended, but it's possible if you're careful and find another source for the Mg.
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Fig is Exactly right...........and use an r.o. device if you have hard water- your grows will have a lot less problems.
 
HIGHFLY

HIGHFLY

Well-Known Member
Eggshells have calcium I would blend them up to a powder then apply I have had a shell cut the stem of one myplants an killd it
 
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