This example dataset is a set of APSIM simulations of sorghum grain number (x1000 grains per squared meter), which exhibits both low accuracy and low precision as it represents a model still under development. The experimental trials come from 6 site-years in 1 country (Australia). These data correspond to the latest, up-to-date, documentation and validation of version number 2020.03.27.4956. Data available at: doi:10.7910/DVN/EJS4M0 . Further details can be found at the official APSIM Next Generation website: https://APSIMnextgeneration.netlify.app/modeldocumentation/