need some help (Ca) supplements

Im having a (Ca) issue in my garden. I know its (Ca) for sure because ive not been using any cal mag supplements as its hard to get here. I jave been using (Mg) in the form of Epsom salts. Ph is 6.6, soil is pro-mix bx with a top dressing of happy frog soil conditioner so here's the question. I found a product called fertilome yeild booster. Its advertised as a (Ca) supplement for tomatoes and directions are only for a foliar mix, I have the concentrated liquid not the ready foliar mix. It is 1.5% calcium 1.2% being calcium chloride. Is this ok to mix in my reservoir and feed along with my other chemical fertilizer (an 3part base gmb) ?

Oh, hell no! Chloride is not going to be beneficial to your plants.

Track down calcium nitrate- THAT will provide water soluble Ca- and nothing else will. That's the nutrient salt that provides the Ca in cal-mag.

If it doesn't actually have to be water soluble- in which case you're probably screwed because it needs to be mixed into your soil before you grow in it- try bone meal, or even gypsum, aka calcium sulfate.

Yeah I know. I should have added some limestone to my soil but I did not. Guess im gonna have to, buy some cal mag... arghhhh

Tranceus said:

Yeah I know. I should have added some limestone to my soil but I did not. Guess im gonna have to, buy some cal mag... arghhhh

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You can dissolve eggshell in white (distilled) vinegar, breaking down calcium carbonate into ca (releasing carbon dioxide). Then let it evaporate into a powder which can be used.

But, that takes about a month to get to the resulting powder. It's nice to have some ready for use when needed.

Another member recommends gypsum. It's not as soluble. But, it might do the job for you.

Cal-mag+ is a complete rip off. Just get calcium nitrate dry.

Pro-mix should be fortified with a small amount of limestone, bonemeal, or gypsum before planting unless using hydroponic nutrients (then the pro-mix should go un-fortified) but if you insinst on buying cal-mag+, just get calcium nitrate..

https://www.cropking.com/catalog/nutrients-nutrients-and-additives/calcium-nitrate-greenhouse-grade

or wherever you find it the cheapest.

Tranceus said:

Yeah I know. I should have added some limestone to my soil but I did not. Guess im gonna have to, buy some cal mag... arghhhh

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Im using hydroponic nutruents. Thats why I didnt add shit but a tiny amount of happy frog so I wouldent need nutes in veg, happy frog timed out perfectly and now soil is inert. AN ph perfect 3 part... lol ive been using for a couple years only cause I got a 5gal bucket of it, never had a cal mag issue. My old water had enough cal in it and if I ever got mg def I would just use Epsom salt. Now at a new address I have (Ca) issue. Ive got 49 plants under 2k rite now one week into flower.

Damn 49 plants under 2k HPS? SOG? How big is your flowering space? If you don't mind all the questions. Sounds crowded

Gypsum is soluble enough to supplement the calcium in your feed, just not soluble enough to make a concentrated stock solution.

Tranceus said:

Im using hydroponic nutruents. Thats why I didnt add shit but a tiny amount of happy frog so I wouldent need nutes in veg, happy frog timed out perfectly and now soil is inert. AN ph perfect 3 part... lol ive been using for a couple years only cause I got a 5gal bucket of it, never had a cal mag issue. My old water had enough cal in it and if I ever got mg def I would just use Epsom salt. Now at a new address I have (Ca) issue. Ive got 49 plants under 2k rite now one week into flower.

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Wait a minute. You have a three part grow/micro/bloom?
Look on the back of the micro. What is it?
It's Ca, so add more of it. You're welcome! Lol

DOLIMITIC LIME

Aeroknow said:

Wait a minute. You have a three part grow/micro/bloom?
Look on the back of the micro. What is it?
It's Ca, so add more of it. You're welcome! Lol

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The Micro bottle has more than Ca. If he's just Ca deficient he'd be adding mg when not necessary, perhaps altering the Ca:Mg ratio, leading to a different deficiency. Gypsum is easy to find, and cheap. I think that would be a better solution.

Clown Baby said:

DOLIMITIC LIME

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That's slow acting. The calcium carbonate requires acidity to breakdown the calcium from the carbon. When top dressing into the soil it takes 10 days. I don't know if gypsum's calcium sulfate is faster acting.

I like dissolved eggshell for treating deficiency because the breakdown has already occurred. But, it takes a month to prepare.

az2000 said:

The Micro bottle has more than Ca. If he's just Ca deficient he'd be adding mg when not necessary, perhaps altering the Ca:Mg ratio, leading to a different deficiency. Gypsum is easy to find, and cheap. I think that would be a better solution.

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The micro bottle doesn't have Mg in it. Just Ca, and Fe.. and nitrate of course. Aeroknow is right in that it's exactly what you're supposed to use to increase calcium. Don't have enough calcium? You aren't using enough of the micro bottle! If are using enough of the "micro" bottle, chances are you have enough calcium.

This is assuming you use GH flora 3 part. I can't understand why you'd use GH 3 part nutrients just to supplement with gypsum. Why even bother with the GH then? Why not replace all the other stuff in GH flora as well?

az2000 said:

The Micro bottle has more than Ca. If he's just Ca deficient he'd be adding mg when not necessary, perhaps altering the Ca:Mg ratio, leading to a different deficiency. Gypsum is easy to find, and cheap. I think that would be a better solution.

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I wouldn't even bother using a 3part, If I was scared to add a little bit extra micro, if I was Ca deficient. Done it many times

churchhaze said:

The micro bottle doesn't have Mg in it. Just Ca, and Fe.. and nitrate of course. Aeroknow is right in that it's exactly what you're supposed to use to increase calcium. Don't have enough calcium? You aren't using enough of the micro bottle! If are using enough of the "micro" bottle, chances are you have enough calcium.

This is assuming you use GH flora 3 part. I can't understand why you'd use GH 3 part nutrients just to supplement with gypsum. Why even bother with the GH then? Why not replace all the other stuff in GH flora as well?

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exactly.

When I recommend calcium nitrate, it's as a replacement to flora micro, not as a supplement. GH flora micro is basically a 1L bottle filled with approximately 300g of calcium nitrate and maybe 10g of chelated iron, then topped off with water and mixed.

The micro also contain some k and all of the Mn,Mo, B, Cu, Zn. If you replace it with calcium nitrate and iron you`ll be seriously light on micronutrients

the easy fix for my pro mix is always to top dress with :A strong abrasive food, Diatomaceous Earth is composed of a unique combination of 33% silicon, 19% calcium, 5% sodium, 3% magnesium and 2% iron, as well fifteen other trace minerals like boron, manganese, titanium, copper and zirconium.²
cut n paste...

RockinDaGanja said:

Damn 49 plants under 2k HPS? SOG? How big is your flowering space? If you don't mind all the questions. Sounds crowded

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its a 13ftx9ftx8ft tall room. yeah im growing sog style rite now looking for some good phenos to clone for mommas. then im switching everything over to RDWC and scrog big ol plants. Oh by the way I purchased some cal mag. problem resolved...