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Explaining phosphorus buffering index (PBI): Soil Network of Knowledge webinar – NSW (Video)

This webinar, from the Soil Network of Knowledge, is presented by Simon Clarendon and explains how the phosphorus buffering index (PBI) helps assess a soil’s ability to hold phosphorus. It outlines key factors influencing PBI – such as particle size and mineralogy – and how PBI affects nutrient retention, pasture growth and fertiliser decisions. The webinar also covers how PBI, Colwell P and calcium chloride extractable P are used to estimate phosphorus loss risk. Although focused on NSW, the information is relevant to dairy systems across Australia [1:15:25]. #

  • Audience: RSP, tertiary students, landholders, SFSG, consultants
  • State: ACT, NSW, NT, QLD, SA, TAS, VIC, WA
  • Author/Editor: S Clarendon
  • Publisher: Soil Network of Knowledge
  • Resource Type: Video
  • Copyright Year: 2024
  • Not Provided
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Resource Last Updated: August 14, 2025

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