![]() ![]() Slack AV, Hatfield JD, Shaffer HB and Driskell JC (1959) Solubility relationships in liquid mixed fertilizer systems. (1979) Solubilities of inorganic and organic compounds. Scott WC, Wilbanks JA and Faulkner LC (1976) Indicators show continued growth in use of liquid fertilizers. (1958) Solubilities: inorganic and metal organic compounds, 4th ed., Washington, D.C.: American Chemical Society Kapusta EC (1958) Potash in liquid fertilizer manufacture. 164, London: The Fertilizer Society of London Gray RC (1977) Foliar fertilisation with primary nutrients during the reproductive stage of plant growth. 1, Washington, D.C.: The Sulfur Institute Also given are areas on the figures indicating precipitating salts, as determined by petrographic examinations.ĭouglas JR and Tisdale SL (1971) The ammonium sulfate situation. ![]() However, estimates of solubility at other temperatures can be made by proper use of temperature-solubility factors. Two of the studies were with nonchloride sources of potash, and the fourth study was with ammonium sulfate as a source of sulfur and supplemental nitrogen.Īll solubility data were measured at 0☌. The base solution was a nominal 11-37-0 grade, with one-fifth of the total phosphate derived from wet-process phosphoric acid and the remainder from electric-furnace acid. One study was based on an ammoniated phosphoric acid (80% polyphosphate level)-urea-potassium chloride-water system. Isoconcentration contour lines indicate the maximum solubility of the nutrients as the sum of the plant food components, i.e., total plant nutrient = %N + %P 2O 5 + %K 2O. Data from four solubility studies for liquid fertilizer solutions containing three or more plant nutrients are presented on equilateral triangles. ![]()
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