Definition

Estimated mineralisation for the upcoming season is calculated using a model that describes the breakdown of organic matter in the soil. This process determines how much soil organic carbon (SOC) will decompose.

The model behind it

The calculation is based on the MINIP model, developed by Yang (1996) and Yang & Janssen (2000). This model predicts the breakdown of organic matter over time.

How it’s calculated

The report shows:

• Expected mineralisation (%) for the coming season.
• Amount of SOC expected to break down this year.

This helps determine how much SOC should be added back to the field to maintain balance.

Carbon sequestration

To sequester carbon, the input of SOC must be greater than the mineralisation rate. This ensures a net gain in soil carbon. 

Additional factors

The model also considers:

•  pH levels
•  Microbial activity

These parameters are analysed and integrated into the mineralisation calculation.

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