Direct Crop Suitability Discriminant

The Direct Crop Suitability Discriminant criterion implemented in the UNIMI.Suitability component is aimed at proposing a crop-specific criterion based on the outputs of crop simulation models. Criteria and related thresholds are presented in criteria and treshold table reported below.

Criteria were selected according to:

• Actual yield and development stage of the considered crop at the end of the season (i.e., yield and maximum development stage code criteria);
• Impact of abiotic factors and diseases on potential yield (i.e, yield gap for frost, diseases, sterility and water stress criteria);
• Abiotic factors and diseases in terms of events occurrence (i.e., stem lodging and potential infection events criteria).

This method applied the same suitability assessment methodology of the Eliasson criterion (i.e., thresholds processed according to the Liebig’s law of the minimum) with the possibility for the user to process separately different categories of criteria (i.e., yield, crop success, abiotic factors, diseases, and water stress).

Compared to the Eliasson criterion, this approach allows for a more direct evaluation of crop suitability, since all the criteria involved are direct outputs of a crop simulation model.

The flow-chart below displays the functioning of the Direct Crop Suitability Discriminant criterion.

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