Nutrient Cycling in Agroecosystems

, Volume 89, Issue 2, pp 229–255

Agronomic and environmental aspects of phosphate fertilizers varying in source and solubility: an update review

  • S. H. Chien
  • L. I. Prochnow
  • S. Tu
  • C. S. Snyder
Original Article

DOI: 10.1007/s10705-010-9390-4

Cite this article as:
Chien, S.H., Prochnow, L.I., Tu, S. et al. Nutr Cycl Agroecosyst (2011) 89: 229. doi:10.1007/s10705-010-9390-4
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Abstract

This review discusses and summarizes the latest reports regarding the agronomic utilization and potential environmental effects of different types of phosphate (P) fertilizers that vary in solubility. The agronomic effectiveness of P fertilizer can be influenced by the following factors: (1) water and citrate solubility; (2) chemical composition of solid water-soluble P (WSP) fertilizers; (3) fluid and solid forms of WSP fertilizers; and (4) chemical reactions of P fertilizers in soils. Non-conventional P fertilizers are compared with WSP fertilizers in terms of P use efficiency in crop production. Non-conventional P fertilizers include directly applied phosphate rock (PR), partially acidulated PR (PAPR), and compacted mixtures of PR and WSP. The potential impacts of the use of P fertilizers from both conventional (fully acidulated) and non-conventional sources are discussed in terms of (1) contamination of soils and plants with toxic heavy metals, such as cadmium (Cd), and (2) the contribution of P runoff to eutrophication. Best practices of integrated nutrient management should be implemented when applying P fertilizers to different cropping systems. The ideal management system will use appropriate sources, application rates, timing, and placement in consideration of soil properties. The goal of P fertilizer use should be to optimize crop production without causing environmental problems.

Keywords

Phosphate fertilizersAgronomic effectivenessCadmiumP runoffEutrophication

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • S. H. Chien
    • 1
    • 2
  • L. I. Prochnow
    • 3
  • S. Tu
    • 4
  • C. S. Snyder
    • 5
  1. 1.Formerly affiliated with IFDCMuscle ShoalsUSA
  2. 2.FlorenceUSA
  3. 3.IPNI Brazil ProgramPiracicabaBrazil
  4. 4.IPNI Southwest China RegionChengduChina
  5. 5.IPNI Nitrogen ProgramConwayUSA