This function calculates the potassium availability.
Usage
osi_c_potassium_de(B_LU, A_C_OF, A_CLAY_MI, A_SAND_MI, A_K_CAL)
Arguments
- B_LU
(numeric) The crop code
- A_C_OF
(numeric) The carbon content of the soil layer (g C/ kg)
- A_CLAY_MI
(numeric) The clay content of the soil (%)
- A_SAND_MI
(numeric) The sand content of the soil (%)
- A_K_CAL
(numeric) The potassium content extracted with CAL (mg K / kg)
Value
The potassium availability index in Germany derived from extractable soil K fractions. A numeric value.