Description, dimensions and equations for the parameters used in the model

Parameter	Description	Dimension
kTNin [eqn (1)]	Allocation rate constant of total N	°Cd−1
kTNout [eqn (2)]	Mobilization rate constant of total N	°Cd−1
k1 [eqn (3)]	Allocation rate constant of N taken up	°Cd−1
k2 [eqn (4)]	Allocation rate constant of incoming endogenous N flows	°Cd−1
k3 [eqn (5)]	Mobilization rate constant of outgoing endogenous N flows	°Cd−1
Nmax [eqn (1)]	Highest total N content in each organ	mg N per plant
N min	Lowest total N content in each organ	mg N per plant
N1 [eqn (3)]	Highest N taken up allocated to each organ	mg N per plant
N2 [eqns (4), (5)]	Highest N content derived from mobilization allocated to each organ	mg N per plant
t Nmax	Time when organ reaches Nmax value	°Cd
t Nmin	Time when organ reaches Nmin value	°Cd
t mob	Start of endogenous N mobilization	°Cd