subroutine pl_nup()
proc~~pl_nup~~UsesGraph
proc~pl_nup
pl_nup
module~basin_module
basin_module
proc~pl_nup->module~basin_module
module~hru_module
hru_module
proc~pl_nup->module~hru_module
module~organic_mineral_mass_module
organic_mineral_mass_module
proc~pl_nup->module~organic_mineral_mass_module
module~output_landscape_module
output_landscape_module
proc~pl_nup->module~output_landscape_module
module~plant_data_module
plant_data_module
proc~pl_nup->module~plant_data_module
module~plant_module
plant_module
proc~pl_nup->module~plant_module
module~soil_module
soil_module
proc~pl_nup->module~soil_module
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~ ~ ~ PURPOSE ~ ~ ~
This subroutine calculates plant nitrogen uptake
~ ~ ~ INCOMING VARIABLES ~ ~ ~
name |units |definition
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
nup1(:) |none |1st shape parameter for plant N uptake
|equation
nup2(:) |none |2nd shape parameter for plant N uptake
|equation
ihru |none |HRU number
pltnfr(1,:) |kg N/kg biomass|nitrogen uptake parameter #1: normal fraction
|of N in crop biomass at emergence
pltnfr(3,:) |kg N/kg biomass|nitrogen uptake parameter #3: normal fraction
|of N in crop biomass at maturity
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~ ~ ~ OUTGOING VARIABLES ~ ~ ~
name |units |definition
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
uno3d |kg N/ha |plant nitrogen deficiency for day in HRU
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~ ~ ~ LOCAL DEFINITIONS ~ ~ ~
name |units |definition
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
un2 |kg N/ha |ideal plant nitrogen content
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~ ~ ~ SUBROUTINES/FUNCTIONS CALLED ~ ~ ~
Intrinsic: Exp, Min
SWAT: nfix, nuts
~ ~ ~ ~ ~ ~ END SPECIFICATIONS ~ ~ ~ ~ ~ ~
find depth of soil layer the roots are into
if crop is a legume, call nitrogen fixation routine
compute nitrogen stress
Arguments
None
proc~~pl_nup~~CallsGraph
proc~pl_nup
pl_nup
amin1
amin1
proc~pl_nup->amin1
nuts
nuts
proc~pl_nup->nuts
pl_nfix
pl_nfix
proc~pl_nup->pl_nfix
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