How do we test for humus
Biology
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Answer
To test for humus in soil, you can use a simple method involving combustion.
Step-by-step solution
3 stepsTake a sample of dry soil and weigh it.
Heat the soil sample in a crucible or heat-resistant container to a high temperature (around 400-500°C) in a furnace or over a strong flame until all organic matter has burned away.
This process is called ignition.
Allow the soil to cool and weigh it again.
The difference in weight before and after heating represents the amount of organic matter (humus) that was present in the soil.
Loss on ignition is the term for this measurement.
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