My first (and last) bottle of
Botanicare Cal/Mag ran out. I was thinking about using the Techniflora MagiCal since that seemed anecdotally to be the most popular by farmers who commented on this thread. But I am broke beyond broke so mixing up my own sounds very attractive right now.
JK, I think you told me that if I am using RO water I should be adding back in tap water to get to 150ppm. If I lived in a metropolitan area that would be OK but I am in a rural area. I think my water district has three separate sources so my water is very inconsistent and has chlorine and/or those other chloromate(sp?) things in it. I don't want to add it back.
So can I follow the advice you give here and buy calcium nitrate, magnesium sulfate, and fulvic acid to do this? And then add my A and B on top of this? Right now I am using Super Veg A and B from Super Nutrients.
What you want is around 150ppm of C and 65 of Mg. I also throw in fulvic acid around 65 ppm. You can run this through a nute calculator to figure out how many grams of the minerals you need.
MAP = Mono-Ammonium Phosphate. Ah-ha! :animal0048: