~ ~ ~ PURPOSE ~ ~ ~
this subroutine applies N and P specified by date and
amount in the management file (.mgt)
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~ ~ ~ SUBROUTINES/FUNCTIONS CALLED ~ ~ ~
SWAT: Erfc
~ ~ ~ ~ ~ ~ END SPECIFICATIONS ~ ~ ~ ~ ~ ~
Allocate organic fertilizer to Slow (SWAT_active) N pool; remaining organic N is llocated to structural litter N pool By Zhang for C/N cycling ===========================
summary calculations
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
integer, | intent(in) | :: | ifrt | |||
real, | intent(in) | :: | frt_kg | |||
integer, | intent(in) | :: | fertop |