Model description. This model is a dynamic model
of crop growth for Maize cultivated in potential
conditions. The crop growth is represented by three state
variables, leaf area per unit ground area (leaf area
index, LAI), total biomass (B) and cumulative thermal
time since plant emergence (TT). It is based on key
concepts included in most crop models, at least for the
"potential production" part. In fact, this model does not
take into account any effects of soil water, nutrients,
pests, or diseases,... The tree state variables are
dynamic variables depending on days after emergence:
TT(day), B(day), and LAI(day). The model has a time step
dt of one day.
The model is defined by a few
equations, with a total of seven parameters for the
described process.
(1) $TT(day + 1) = TT(day ) +
dTT(day)$