Gerardo, look at the nutrient uptake on that site at different stages. Also look at the Potassium Nitrate study. We have used a K boost which is very similar just a different company. I am wondering with the mix you looked at, if a guy can run that through an injector with calcium in the same stock tank, that's a no no with most formula's I know of.
Here's a great site that may help when piecing together a complete mixture.
http://www.smart-fertilizer.com/arti...zer-solubility