PFP {NUETON}

Calculate Partial-factor Productivity (PFP)

Description

The expression of yield per unit of fertilizer N applied.

Calculate PFP using the formula: PFP = YieldF / FertN

Usage

PFP(YieldF, FertN)

Arguments

YieldF

A numeric vector of final yield values.

FertN

A numeric value for fertilizer N input.

Value

The calculated PFP value.

References

Primary: Congreves, K. A., Otchere, O., Ferland, D., Farzadfar, S., Williams, S., & Arcand, M. M. (2021, June 4). Nitrogen Use Efficiency Definitions of Today and Tomorrow. Frontiers in Plant Science, 12. https://doi.org/10.3389/fpls.2021.637108

Secondary: Dobermann, A. (2007). “Nutrient use efficiency–measurement and management,” in Proceedings of the International Fertilizer Industry Association (IFA) Workshop on Fertilizer Best Management Practices, 7–9 March 2007, Brussels, 1–28.

Examples

YieldF <- c(12.09, 11.99, 15.20, 10.33)
FertN <- 15
PFP(YieldF, FertN)