pl_fert Subroutine

subroutine pl_fert(ifrt, frt_kg, fertop)

Uses

  • proc~~pl_fert~~UsesGraph proc~pl_fert pl_fert module~basin_module basin_module proc~pl_fert->module~basin_module module~fertilizer_data_module fertilizer_data_module proc~pl_fert->module~fertilizer_data_module module~hru_module hru_module proc~pl_fert->module~hru_module module~mgt_operations_module mgt_operations_module proc~pl_fert->module~mgt_operations_module module~organic_mineral_mass_module organic_mineral_mass_module proc~pl_fert->module~organic_mineral_mass_module module~carbon_module carbon_module module~organic_mineral_mass_module->module~carbon_module

~ ~ ~ PURPOSE ~ ~ ~ this subroutine applies N and P specified by date and amount in the management file (.mgt) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

~ ~ ~ SUBROUTINES/FUNCTIONS CALLED ~ ~ ~ SWAT: Erfc

~ ~ ~ ~ ~ ~ END SPECIFICATIONS ~ ~ ~ ~ ~ ~

calculate c:n ratio for manure applications for SWAT-C meta_fr is the fraction of fertilizer that is allocated to metabolic litter pool add fertilizer to first and/or second layer add mineral n and p for all methods add total organic n and p for all methods for stable carbon - add n and p to active humus pool for C-FARM add to manure pool - assume C:N ratio = 10 for SWAT-C add to slow humus pool and fresh residue pools add 1-rtof to slow humus pool add rtof to fresh residue pools add metabolic manure pool add structural manure pool add lignin manure pool total residue pool is metabolic + structural summary calculations

Arguments

Type IntentOptional Attributes Name
integer, intent(in) :: ifrt
real, intent(in) :: frt_kg
integer, intent(in) :: fertop