Normal superphosphate or single superphosphate (NSP, SSP) is used solely as a fertilizer material. NSP can be used with most crops and is applied during the planting season. NSP is a solid phosphate fertilizer material that is produced from phosphate rock and sulfuric acid (H2SO4).
Single superphosphate(TSP)
TSP is a solid single-nutrient phosphate fertilizer material produced from phosphate rock and phosphoric acid. TSP typically contains 44–46% anhydrous phosphoric acid (P2O5), more than twice the P2O5 content of normal superphosphate.
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