Potentially Mineralisable Nitrogen (PMN)

Smart Sustainability through PMN Testing! Cost-Efficiency for Nitrogen Management

This test measures:

Nitrogen potentially released from organic matter over a period of time during crop growth

Best time to run this test:

On cropping soils before planting.


Estimates the contribution to plant available nitrogen from mineralisation of organic matter and is correlated with long term aerobic incubation studies. This test replace the AMN test since it is a better predictor of mineralisable nitrogen in cropping soils.


Knowing the potential nitrogen supply by the soil can reduce the expenditure on nitrogen therefore being economically and environmentally more sustainable.

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