Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Validation of the predicted N contents with Vis-NIR spectrum for the dates 67 DAC, 99 DAC, 144 DAC, 164 DAC, 200 DAC, 228 DAC, 255 DAC, 313 DAC and GENERAL. The values of R2, RMSE and d were obtained from the results of the k-fold CV validation.
