derivePhBcs
@nmi-agro/fdm-source / fdm-calculator/src / derivePhBcs
Function: derivePhBcs()
derivePhBcs(
d_ph_delta):0|1|2
Defined in: fdm-calculator/src/bcs/index.ts:404
Derives a BCS pH score (0–2) from a D_PH_DELTA value.
D_PH_DELTA = max(0, pH_optimum − A_PH_CC) as computed by the OBIC calc_ph_delta.
Replicates: bcs_ph = round(ind_ph(D_PH_DELTA) × 2)
where ind_ph(x) = 1 − evaluate_logistic(x, b=9, x0=0.3, v=0.4, increasing=TRUE)
Source: https://github.com/nmi-agro/Open-Bodem-Index-Calculator/blob/master/R/ph.R
Parameters
d_ph_delta
number
Returns
0 | 1 | 2