This function calculates the potassium excess.
Usage
osi_nut_k_it(B_LU, B_TEXTURE_HYPRES, A_K_AAA)
Arguments
- B_LU
(numeric) The crop code
- B_TEXTURE_HYPRES
(character) The soil texture according to HYPRES classification system
- A_K_AAA
(numeric) The K-content of the soil extracted with ammoninium acetate (mg K/kg)
Value
The potassium excess index in Italy derived from extractable soil K fractions. A numeric value.
Examples
osi_nut_k_it(B_LU = 265,A_K_AAA = 5,B_TEXTURE_HYPRES='C')
#> [1] 0.9784436
osi_nut_k_it(B_LU = c(265,1019),A_K_AAA = c(3.5,5.5),B_TEXTURE_HYPRES=c('C','C'))
#> [1] 0.9789472 0.9782732