It is HIGHLY RECOMMENDED to use the 3/8" Controllable Flow Spigot, for accurate dispensing of all concentrated liquid nutrients
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Cal Mag 3/1
3% Ca, 1% Mg, 1% N
The most common usage rate for this product is 3 - 5ml per gallon for soil applications.
For foliar applications use 1 - 2mls per gallon.
For best results analyze your feed solution through a reputable lab. B