All plant foods are built with the same 13 elements, but the source of these elements do make a difference. For instance; if you want to add Calcium which one do you choose and from whom: Calcium Nitrate[Ca(NO3)2], Calcium Chloride [CaCL2-6H2O], Calcium Sulfate [CaSO4- 2H2O], Calcium Oxide [CaO], Mono Calcium Phosphate [Ca(H2PO4)2] and Calcium Limestone [Carbonate CaCO3] , Triple Super Phosphate [CaH4(PO4)2], Calcium Hydroxide [Ca(OH)2], each has a specifi..
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