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Soil pH Testing Protocols for Sandy Loam and Sand Textures

This document outlines the rinsing procedures for soil samples based on their texture and pH levels, particularly for sandy loam and sand. If the pH is less than 5 or greater than 7, rinsing is required after all sample collections. The guidelines also indicate acceptable ranges for pH pairings and suggest future research directions to assess the impact of rinsing on soil pH and the influence of new stirrer blades on testing accuracy. Ensuring proper pH levels is crucial for soil health and effective agricultural practices.

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Soil pH Testing Protocols for Sandy Loam and Sand Textures

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  9. Soil 6104 Texture = Sandy Loam Rinse if pH is <5 or >7 Rinse after all samples # = outside of +/- 2 x sd

  10. Soil 0801 Texture = Sand Rinse if pH is <5 or >7 Rinse after all samples # = outside of +/- 2 x sd

  11. H H H H H High pH H H H H H L L L L L Low pH L L L L L H H H H H High pH H H H H H L L L L L Low pH L L L L L

  12. 5.1 / 6.9 pairing Rinse No Rinse Rinse

  13. 5.1 / 7.7 pairing Rinse No Rinse Rinse

  14. 4.0 / 6.4 pairing No Rinse Rinse

  15. Future research Evaluate effect of not rinsing with… 1 M KCl soil pH & New blades on stirrer

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