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Calculate the K availability index (wrapper function)

osi_c_potassium.Rd

This function calculates the potassium availability for all European countries (if available).

Usage

osi_c_potassium(
  B_LU,
  B_SOILTYPE_AGR = NA_character_,
  B_AER_FR = NA_character_,
  A_SOM_LOI = NA,
  A_C_OF = NA,
  A_CLAY_MI = NA,
  A_SAND_MI = NA,
  A_PH_CC = NA,
  A_PH_WA = NA,
  A_CACO3_IF = NA,
  A_CEC_CO = NA,
  A_K_AAA = NA,
  A_K_AL = NA,
  A_K_AN = NA,
  A_K_CAL = NA,
  A_K_CC = NA,
  A_K_CO_PO = NA,
  A_K_DL = NA,
  A_K_M3 = NA,
  A_K_NaAAA = NA,
  A_K_WA = NA,
  B_COUNTRY
)

Arguments

B_LU

(numeric) The crop code

B_SOILTYPE_AGR

(character) The agricultural type of soil

B_AER_FR

(character) An agroeconomic region in France

A_SOM_LOI

(numeric) The organic matter content of the soil (%)

A_C_OF

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

A_CLAY_MI

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

A_SAND_MI

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

A_PH_CC

(numeric) The acidity of the soil, measured in 0.01M CaCl2 (-)

A_PH_WA

(numeric) The acidity of the soil, measured in water (-)

A_CACO3_IF

(numeric) the percentage of CaCO3 (%)

A_CEC_CO

(numeric) The cation exchange capacity of the soil (mmol+ / kg), analyzed via Cobalt-hexamine extraction

A_K_AAA

(numeric) The exchangeable K-content of the soil measured via ammonium acetate extraction

A_K_AL

(numeric) The exchangeable K-content of the soil measured via Ammonium Lactate extracton (mg K/ kg)

A_K_AN

(numeric) The K-content of the soil extracted with ammonium nitrate (mg K /kg)

A_K_CAL

(numeric) The exchangeable K-content of the soil measured via Calcium Ammonium Lactate (mg K/ kg)

A_K_CC

(numeric) The plant available potassium, extracted with 0.01M CaCl2 (mg / kg),

A_K_CO_PO

(numeric) The occupation of the CEC with potassium (%)

A_K_DL

(numeric) The exchangeable K-content of the soil measured via Double Lactate extraction (mg K/ kg)

A_K_M3

(numeric) The exchangeable K-content of the soil measured via Mehlich 3 extracton (mg K/ kg)

A_K_NaAAA

(numeric) The K-content of the soil extracted with Morgan's solution, sodium acetate acetic acid (mg/ kg)

A_K_WA

(numeric) The exchangeable K-content of the soil measured via water extracton (mg K/ kg)

B_COUNTRY

(character) The country code

Value

The capacity of the soil to supply and buffer potassium, evaluated given an optimum threshold for yield. A numeric value.