3.5 Mapping carbon and nitrogen content of aboveground plant and
grain at maturity
In view of the better performance of DArs, the maps of
updated W above, yield,N above and N grain at the
experimental site at maturity were generated (Fig. 9) by assimilating
the in-season crop growth simulation and leaf traits’ prediction (Fig.
5). Differences in the indirectly updated biomass and N content of
aboveground plant and grain caused by the different N input were
observed between the experimental plots. The variances of those updated
simulations within each experimental plot were also shown in their
corresponding maps (Fig. 9), in line with the existing variances in the
maps of predicted leaf traits (Fig. 5).