| NUpE {NUETON} | R Documentation |
Calculate N Uptake Efficiency (NUpE)
Description
The percentage of available soil N that is utilized by the plant; also conceptualized as apparent recovery efficiency of the N supply. Calculate NUpE using the formula: NUpE = (PlantN / (FertN + SoilN)) * 100
Usage
NUpE(PlantN, SoilN, FertN)
Arguments
PlantN |
A numeric vector of values for plant N content. |
SoilN |
A numeric value for soil N content. |
FertN |
A numeric value for fertilizer N input. |
Value
The calculated NUpE 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: Moll, R. H., Kamprath, E. J., and Jackson, W. A. (1982). Analysis and interpretation of factors which contribute to efficiency of nitrogen utilization 1. Agron. J. 74, 562–564. doi: 10.2134/agronj1982.00021962007400030 037x
Examples
PlantN <- c(12.1, 8.99, 12.89, 13.11)
SoilN <- 20
FertN <- 15
NUpE(PlantN, SoilN, FertN)