Calculate the phosphate availability index in Germany

This function calculates the phosphate availability.

Usage

osi_c_phosphor_de(
  B_LU,
  A_SOM_LOI,
  A_CLAY_MI,
  A_P_CAL = NA_real_,
  A_P_DL = NA_real_
)

Arguments

B_LU

(numeric) The crop code

A_SOM_LOI

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

A_CLAY_MI

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

A_P_CAL

(numeric) The P-content of the soil extracted with ammonium lactate(mg P / kg)

A_P_DL

(numeric) The P-content of the soil extracted with double lactate (mg P / kg)

Value

The phosphate availability index in Germany stimated from extractable soil P fractions. A numeric value.

Examples

osi_c_phosphor_de(B_LU = 265, A_SOM_LOI = 4.5, A_CLAY_MI = 5,A_P_CAL = 45,A_P_DL = 5)
#> [1] 0.5071353
osi_c_phosphor_de(B_LU = c(265,1019),A_SOM_LOI = c(3,3),A_CLAY_MI = c(3,15),
A_P_CAL = c(35,54),A_P_DL = c(3.5,5.5))
#> [1] 0.3228263 0.8104658