Estimated mineralisation
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.
