This function calculates the Cu availability of a soil, using the agronomic index used in France
Usage
osi_c_copper_fr(B_LU, A_CLAY_MI, B_CF, A_SOM_LOI, A_CU_EDTA)
Arguments
- B_LU
(numeric) The crop code
- A_CLAY_MI
(numeric) The clay content (%)
- B_CF
(numeric) The percentage of coarse fragments (%)
- A_SOM_LOI
(numeric) The organic matter content (%)
- A_CU_EDTA
(numeric) The plant available content of Cu in the soil (mg Cu per kg) extracted by EDTA
Value
The copper availability index in France estimated from extractable copper, clay, coarse fragments and soil organic matter, A numeric value.