MSU Fertilizer (19-4-23) Well Water Blend For Orchids, Aroids & Tropicals

Originally formulated for Well Water Usage but now widely used with Tap Water, Rain Water and Reverse Osmosis Water Manufactured by Greencare The nutritional program at Michigan State University is vastly different from the majority of recommendations circulating within the horticultural world about the fertilization of orchids and other plants. This fertilizer is now being referred to as “Michigan State University’s Magic Fertilizer.” Well Water Special or 19-4-23 was designed to complement the well water found at Michigan State University Analysis of the well water MSU grounds, which is pH 7.9, is approximately as follows (ppm = parts per million or- milligrams per liter):Calcium = 104 ppm elementalMagnesium + 34 ppm elementalSodium + 8.5 ppm elementalPotassium = 1.4 ppm elementalIron + 0.84 ppm elementalManganese + 0.04 ppm elementalCopper + 0.70 ppm elementalZinc = 0.17 ppmSulfate (as SO4) = 91 ppmBicarbonate + 383 ppm Due to the extreme variability of well-water mineral content,