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2. Labeling of fertilizer - Wikipedia

   en.wikipedia.org/wiki/Labeling_of_fertilizer

   Fertilizers with additional macronutrients (S, Ca, Mg) may add more numbers to the N-P-K ratio to indicate the amount. The additional numbers are similarly reported in the oxide mass fraction form. For example, a Polish fertilizer labeled "NPK (Ca,S) 4-12-12 (14-29)" has an equivalent of 14% soluble calcium oxide and 29% total sulfur trioxide. [6]

3. Potassium oxide - Wikipedia

   en.wikipedia.org/wiki/Potassium_oxide

   The chemical formula K 2 O (or simply 'K') is used in several industrial contexts: the N-P-K numbers for fertilizers, in cement formulas, and in glassmaking formulas. Potassium oxide is often not used directly in these products, but the amount of potassium is reported in terms of the K 2 O equivalent for whatever type of potash was used, such ...

4. Billingham Manufacturing Plant - Wikipedia

   en.wikipedia.org/wiki/Billingham_Manufacturing_Plant

   By the 1980s, the Billingham site was divided into 4 production groups – Ammonia Works (ammonia and methanol), Products Works (nitric acid and Nitram as well as other acids used to make compound "NPK" fertiliser), Oil Works and Cassel Works (whose main product is methyl methacrylate monomer, the precursor of Perspex).

5. Your Wilting Plants Need This Fertilizer ASAP - AOL

   www.aol.com/wilting-plants-fertilizer-asap...

   10-10-10 fertilizer has equal parts nitrogen, phosphorus, and potassium. Learn about liquid and granular 10-10-10 fertilizer and when and how to use them. Your Wilting Plants Need This Fertilizer ASAP

6. Urea phosphate - Wikipedia

   en.wikipedia.org/wiki/Urea_phosphate

   Urea phosphate is a 1:1 combination of urea and phosphoric acid that is used as a fertilizer. It has an NPK formula of 17-44-0, [1] and is soluble in water, producing a strongly acidic solution. Urea phosphate is available in fertilizer vendor bags that carry a UP signet on the packaging.

7. Ammonium dihydrogen phosphate - Wikipedia

   en.wikipedia.org/wiki/Ammonium_dihydrogen_phosphate

   The largest use of monoammonium phosphate by weight is in agriculture, as an ingredient of fertilizers. It supplies soil with the elements nitrogen and phosphorus in a form usable by plants. Its NPK label is 12-61-0 (12-27-0), meaning that it contains 12% by weight of elemental nitrogen and (nominally) 61% of phosphorus pentoxide P 2 O