Fertilization

Fertilizer can optionally be added to a soil (see N Fertilization). The fertilization is added at a specified rate, p_FertRate, to a nitrogen pool, N_Fert, located on the soil surface. Dissolution of mineral N from this state variable is made continuously. Ammonium is formed as:

                                              (5.4)

where p_fNH and p_kFert are empirical parameters. Similarly nitrate is given by

                                        (5.5)