This function calculates the phosphate excess.
Usage
osi_nut_p_uk(B_LU, A_SOM_LOI, A_P_OL, unitcheck = TRUE)
Arguments
- B_LU
(numeric) The crop code
- A_SOM_LOI
(numeric) The percentage organic matter in the soil
- 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 excess index in United Kingdom derived from extractable soil P fractions. A numeric value.
Examples
osi_nut_p_uk(B_LU = 'testcrop1',A_SOM_LOI = 3,A_P_OL = 5)
#> [1] 0.9204884
osi_nut_p_uk(B_LU = c('testcrop1','testcrop2'),A_SOM_LOI = c(3,4),A_P_OL = c(3.5,5.5))
#> [1] 0.9261702 0.9192389