Summary
This book chapter reviews standard and emerging methods for particle-size analysis in soil science, emphasising the importance of pretreatment and dispersion protocols in generating reliable soil texture data. The authors describe three conventional methods (sieving, pipette, hydrometer) and introduce newer approaches including laser-diffraction and pressure measurement techniques. The chapter underscores that meaningful comparison of PSA results requires standardisation and transparent reporting of methodological choices.
Regional applicability
This is a methodological reference text with international applicability. The standardised PSA methods described are widely adopted in United Kingdom soil science laboratories and university curricula; however, practitioners should verify that their chosen method aligns with UK-specific soil survey protocols (e.g., those used by the British Soil Survey or SSEW).
Key measures
Particle-size distribution curves; sand, silt, and clay separate fractions; cumulative particle-size distributions; pretreatment and dispersion methods
Outcomes reported
The chapter compares three principal particle-size analysis methods (sieving, pipette, hydrometer) and discusses emerging laser-diffraction and pressure measurement techniques for determining soil texture distributions.
Topic tags
Dig deeper with Pulse AI.
Ask about this record, its theme or its relevance to UK farming and policy. Pulse AI uses selected catalogue evidence and cites the sources it draws on.