Calculate the potassium excess index in Germany

This function calculates the potassium excess.

Usage

osi_nut_k_de(B_LU, A_C_OF, A_CLAY_MI, A_SAND_MI, A_K_CAL, unitcheck = TRUE)

Arguments

B_LU

(numeric) The crop code

A_C_OF

(numeric) The carbon content of the soil layer (g/ 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 calcium ammonium lactate (g / kg)

unitcheck

(character) Option to switch off unit checks (TRUE or FALSE)

Value

The potassium excess index in Germany derived from extractable soil K fractions. A numeric value.