| sNUE {NUETON} | R Documentation |
Calculate NUE of a System (sNUE)
Description
The fraction of system N outputs that are captured as N yield rather than lost to the environment Calculate sNUE using the formula: sNUE = (YieldN / (YieldN + Nloss))
Usage
sNUE(YieldN, Nloss)
Arguments
YieldN |
Observed crop yield vector that is attributed to the nitrogen inputs in the system |
Nloss |
The value of nitrogen that is lost from the system and not utilized by the crops. |
Value
The calculated sNUE 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: Martinez-Feria, R. A., Castellano, M. J., Dietzel, R. N., Helmers, M. J., Liebman, M., Huber, I., et al. (2018). Linking crop- and soil-based approaches to evaluate system nitrogen-use efficiency and tradeoffs. Agric. Ecosyst. Environ. 256, 131– 143. doi: 10.1016/j.agee.2018.01.002
Examples
YieldN <- c(5.4, 6.3, 4.8, 7.2)
Nloss <- 3.574
sNUE(YieldN, Nloss)