publications

Nutrient Source Specifics

Looking for brief information about the production, agricultural use, management practices, and chemical properties of common fertilizer materials? Nutrient Source Specifics are one-page fact sheets highlighting various fertilizers and nutrient sources. Written by IPNI scientific staff, these items are primarily for educational use by a non-technical audience. Consult with a local expert regarding specific recommendations on nutrient use. This series is also available in Chinese and Spanish.

 

Thiosulfate

NSS-8 Thiosulfate - This soluble liquid fertilizer provides a soluble source of S and other nutrients including ammonium, K, Ca, or Mg.

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Triple Super Phosphate

NSS-14 Triple Super Phosphate - Triple superphosphate (TSP) was one of the first high analysis P fertilizers that became widely used in the 20th century. Technically, it is known as calcium dihydrogen phosphate and as monocalcium phosphate, Ca(H2PO4)2.H2O . It is an excellent P source, but its use has declined as other P fertilizers have become more popular.

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