When considering how multi-species / regenerative crops are modelled in Overseer, it is important to consider that very little trial data is available for these types of crop, either from NZ or internationally.
In the absence of trial data, the Canterbury Overseer Forum has suggested the following modelled proxy for multi-species crops:
Model as a rape crop if the crop is grazed
Model as green manure if the crop is dug in
Model as ryegrass/white clover for mixed swards
Where proxies are used, a comment should be recorded against the analysis, so that in future, the analysis can be updated.