This function calculates the Mg availability of a soil, using the agronomic index used in France
Usage
osi_c_magnesium_fr(B_LU, A_CLAY_MI, A_CEC_CO, A_CACO3_IF, A_MG_AAA)
Arguments
- B_LU
(numeric) The crop code
- A_CLAY_MI
(numeric) Soil clay content (%)
- A_CEC_CO
(numeric) The cation exchange capacity of the soil in mmol/kg
- A_CACO3_IF
(numeric) The CaCO3 content in the soil (%)
- A_MG_AAA
(numeric) The extractable Mg content in the soil (mg/kg)
Value
The magnesium availability index in France estimated from extractable magnesium. A numeric value.