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Calculate the pH index for Switzerland

osi_c_ph_ch.Rd

This function evaluates the pH index in Switzerland

Usage

osi_c_ph_ch(
  B_LU,
  A_CLAY_MI = NA_real_,
  A_PH_WA = NA_real_,
  A_CA_CO_PO = NA_real_,
  A_MG_CO_PO = NA_real_,
  A_K_CO_PO = NA_real_,
  A_NA_CO_PO = NA_real_
)

Arguments

B_LU

(character) The crop type

A_CLAY_MI

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

A_PH_WA

(numeric) The pH measured in h2o

A_CA_CO_PO

(numeric) The calcium occupation of the CEC (%)

A_MG_CO_PO

(numeric) The magnesium occupation of the CEC (%)

A_K_CO_PO

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

A_NA_CO_PO

(numeric) The sodium occupation of the CEC (%)

Value

The pH index in Switzerland estimated from the base saturation with Ca, Mg and K. For soils with pH water below 5.9 the soil is extracted with HCL+H2SO4. Soils with higher pH are extracted with Bariumchloride.