sixty_reefer
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The point is absolutely right, my point is wile using potassium nitrate salts there is also a N content, N stands for nitrogen and a organic nutrient. Randy also explain to me that the same happens with some phosphates that contain organic and inorganic forms of phosphates, not just inorganic phosphate.His point was was that potassium nitrate is not 'organic'. It's 'in-organic' - I don't understand the calculator's role. K is inorganic. Nitrate is inorganic.