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Information @ a Glance

  • Triple superphosphate, also known as double, treble, or concentrated superphosphate, is a fertilizer material with a phosphorus content of over 40 percent, measured as phosphorus pentoxide (P2O5).

  • Triple Superphosphate is a high analysis product of the reaction between phosphate rock and phosphoric acid, containing 45 - 48% available phosphate (AP).

  • Triple superphosphate plants are more capitalintensive but with a more concentrated product these plants can service a greater area.

  • Two processes have been used to produce triple superphosphate: run-of-the-pile (ROP-TSP) and granular (GTSP).

  • The production of triple superphosphate in a den is similar to that for the production of single superphosphate. The same equipment is used as for single superphosphate production.

  • TSP is made by reacting wet-process phosphoric acid with phosphate rock. Typically it contains 46% P2O5. TSP is produced in granular and non-granular form and is used both in fertilizer blends (with potassium and nitrogen fertilizers) and by itself.

  • TSP production amounts to around 5m. tonnes a year, of which around 4m. tonnes are traded internationally. It is produced in about 10 countries. The largest producers and exporters are Chinese, Tunisian, Moroccan, Israeli, Bulgarian and Egyptian companies. The main consuming countries are Brazil, Bangladesh, Iran the US and northwest Europe.

  • Increasing prices of natural gas and raw materials used for the manufacture of fertilizers have contributed to the increase in the prices of finished fertilizer products.

  • World TSP production is concentrated in the developing world. Africa, Socialist Asia, the Middle East, and Central and South America are the primary producers, together accounting for about 81% of world production in 2009.

  • The outlook for the fertilizer market through 2014 is for a growing agricultural market. After farmers reduced applications of P and K fertilizers in the last two fertilizer seasons, P fertilizer demand is expected to grow substantially in the next few years.

  • The demand for fertilizer depends on the price of the crop, the price of fertilizer, prices of other inputs that substitute for or complement fertilizer, and the parameters of the fertilizer production function.

  • Application of Triple superphosphate fertilizer consistently increased bean yields. Use of Triple superphosphate fertilizer and Rhizobium inoculants is recommended in bean production

  • Localized application of triple superphosphate to soils with high maximum phosphate adsorption capacity provides a way of reducing contact between the phosphate fertilizer and the soil, thus reducing P adsorption, allowing the fertilizer to have a more prolonged residual effect.

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