Dear all:

Is it always necessary to undergo CERES-Rice model evaluation before we can
proceed to model application and simulate rice yields?
I mean for each location that we want to predict rice yields, do we  need
to evaluate the model and get the site soil profile and soil surface data,
crop management data from a field experiment, and observed experimental
data from the experiment?

I ask this since I am thinking if I can use a default  clay soil profile
available in DSSAT to simulate rice yields for 4 different locations.

Thanks for the help and advice.