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2.1.2 Standard Soil Test Plus

£24.00

P K Mg pH OM – SFI Compliant – For more information, please scroll down.

This test measures pH, organic matter and the major nutrients essential for plant growth, other than Nitrogen. The inclusion of organic matter means it is compliant with the Sustainable Farming Initiative (SFI). It is recommended to repeat this test every 3 to 5 years, depending on soil type.

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For sampling instructions, click here

For the sample form to send with the samples, click here

For the courier booking form, click here

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Extraction methods used:

Phosphorus (P): Olsen P extraction (0.5M NaHCO3)

Potassium (K): 1 M Ammonium Nitrate extraction

Magnesium (Mg): 1 M Ammonium Nitrate extraction

pH: Extracted in deionised water

Organic Matter: Loss of Ignition at 400 °C