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This function calculates the nitrogen supplying capacity for soils in Europe

Usage

osi_c_nitrogen(
  B_LU,
  B_SOILTYPE_AGR = NA_character_,
  A_CLAY_MI = NA_real_,
  A_SAND_MI = NA_real_,
  A_SOM_LOI = NA_real_,
  A_C_OF = NA_real_,
  A_N_RT,
  A_CACO3_IF = NA_real_,
  B_COUNTRY
)

Arguments

B_LU

(numeric) The crop code from the BRP

B_SOILTYPE_AGR

(character) The agricultural type of soil

A_CLAY_MI

(numeric) The clay content of the soil (%)

A_SAND_MI

(numeric) The sand content of the soil (%)

A_SOM_LOI

(numeric) The percentage organic matter in the soil (%)

A_C_OF

(numeric) The organic carbon content in the soil (g C / kg)

A_N_RT

(numeric) The organic nitrogen content of the soil (mg N / kg)

A_CACO3_IF

(numeric) The percentage of carbonated lime (%)

B_COUNTRY

(character) The country code

Value

the capacity of soils to supply nitorgen, converted to an OSI score.

Examples

osi_c_nitrogen(B_LU = 256, B_SOILTYPE_AGR = 'dekzand',A_N_RT = 2500, 
A_CLAY_MI = 11, A_SAND_MI = 3,A_C_OF = NA,A_CACO3_IF = NA,
A_SOM_LOI = 4.5, B_COUNTRY = 'NL')
#> [1] 1