This variable controls the internal development as a kind of biological age of the crop.
Assimilation is takes place only within the vegetative biomass.
A small part of them is exuded by the roots into the soil. This is a list of model equations sorted by their characteristics with hypertext links for more details. This is a list of model quantities sorted by their characteristics with hypertext links for more details. References Matthaeus, E., Kartschall, Th., Fruehauf, C., Grossman, S., Wechsung, F., 1992. Forschungsbericht, Potsdam-Institut fuer Klimafolgenforschung.