This function calculates the phosphate excess.
Usage
osi_nut_p_pt(B_LU, A_P_OL, unitcheck = TRUE)
Arguments
- B_LU
(numeric) The crop code
- A_P_OL
(numeric) The P-content of the soil extracted with Olsen (mg P/kg)
- unitcheck
(character) Option to switch off unit checks (TRUE or FALSE)
Value
The phosphate availability index in Portugal derived from extractable soil P fractions. A numeric value.
Examples
osi_nut_p_pt(B_LU = '3301061299',A_P_OL = 5)
#> [1] 0.9653914
osi_nut_p_pt(B_LU = c('3301061299','3301000000'),A_P_OL = c(3.5,5.5))
#> [1] 0.9698392 0.9637747