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Scheda a dose Standard - Phosphorus and Potassium (DPI 2026)

Source: R/scheda_PK.R
dose_standard_PK.Rd

Implements the DPI 2026 simplified "Scheda a dose Standard" method for P2O5 and K2O, matching Fert_Office v1.26 foglio Scheda_PK. The base dose for phosphorus is selected from standard_pk_doses.table according to soil P class; potassium base dose depends on soil K class. Then user-selected decrements and increments are applied. No MAS cap exists for P/K in DPI 2026 (the MAS applies to N only).

Usage

dose_standard_PK(
  crop,
  phase = NULL,
  soil_P_class = c("normal", "low", "high", "very_low"),
  soil_K_class = c("normal", "low", "high", "very_low"),
  P_decrements = numeric(),
  P_increments = numeric(),
  K_decrements = numeric(),
  K_increments = numeric(),
  standard_pk_doses.table = NFert::standard_pk_doses.table
)

scheda_PK(...)

Arguments

crop

Crop name (matches standard_pk_doses.table$crop).

phase

Optional phase name.

soil_P_class

One of "normal" (default), "low", "high", "very_low". Selects the P2O5_<class> column in standard_pk_doses.table.

soil_K_class

Same four levels for potassium (K2O_<class> columns).

P_decrements, P_increments, K_decrements, K_increments

Named numeric vectors of adjustments (kg/ha). See scheda_N() for the same pattern.

standard_pk_doses.table

Lookup (default NFert::standard_pk_doses.table).

...

Passed to dose_standard_PK().

Value

A named list with dose_base_P2O5, dose_base_K2O, dose_final_P2O5, dose_final_K2O, and subtotals.

Examples

scheda_PK(
  crop = "Grano duro (pianta intera)",
  soil_P_class = "normal",
  soil_K_class = "normal"
)
#> $crop
#> [1] "Grano duro (pianta intera)"
#> 
#> $phase
#> [1] "nd"
#> 
#> $soil_P_class
#> [1] "normal"
#> 
#> $soil_K_class
#> [1] "normal"
#> 
#> $dose_base_P2O5
#> [1] 60
#> 
#> $P_total_decrement
#> [1] 0
#> 
#> $P_total_increment
#> [1] 0
#> 
#> $dose_final_P2O5
#> [1] 60
#> 
#> $dose_base_K2O
#> [1] 120
#> 
#> $K_total_decrement
#> [1] 0
#> 
#> $K_total_increment
#> [1] 0
#> 
#> $dose_final_K2O
#> [1] 120
#> 
#> $units
#> [1] "kg/ha"
#> 
#> $reference
#> [1] "DPI Emilia-Romagna 2026, Fert_Office v1.26 (Scheda_PK)"
#>