Ok, so with this Coronavirus stuff I had to order my Cal-Mag over the phone. I also had to pay with my credit card over the phone. Now I get this bag and it’s pelletized K-Mag 0-0-21 but 21% K & 10% calcium & 21% Magnissium. Ive never used this kinda Cal-Mag before. But my plants really need some. So anyways… I crushed it and used it. A small amount obviously. But I’m wondering if anyone has used this b4??? Please help
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Sul-po-mag is one of the most common fertilizers in the world. Start easy with it, it’s pretty strong.
Better for outdoor, but can be done indoor in small amounts.
Otherwise known as langbeinite. Slower release but a lot of release potential. Very common organic soil amendment as well.
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Bummer. They sent you the wrong stuff. Its high in K, some CA, no Mag.
GH Calimagic works well for me.
Epsom will give you Mag and sulfer.
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Yeah, I agree with @GramTorino - it sounds like they sent you the wrong stuff. It’s like you ordered snow tires and they sent you all-weather tires. Sure, both are tires that can be driven in snow, but you wanted the studs that are on snow tires, not the extra miles that you can get from the all-weather tires.
You should contact the retailer and work out a return/refund. If you ordered CalMag and didn’t get that or very similar product, they should take it back AND pay the return shipping. Whether you want a refund or to give them another chance is up to you. Since you used your credit card, you can go through your CC provider and let them take care of it if the retailer jerks you around.
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Sul-po-mag = Sulfate of Potash Magnesia
high potassium; high magnesium; high sulfur
i’m guessing the reason that particular K-mag you have has 10% calcium and 21% magnesium–the opposite of the cal/mag ratio we want–is because calcium is immobile (and/or the sources can be high in pH)?
LOVE talking biochemistry–what medium are you guys using?
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Hey @lazylightning I’m using a TLO soil recipe.
You can check out my recipe in here at OG. The topic headline is “TLO soil, re-ammending feeding and upkeep” feel free to come check it out! And YES your right the numbers are/were reversed compared to what we want! Booooooo…
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