The repository folder contains raw and supplementary data to support the pubblication. Supplementary material: - Supplementary Figure 1: Seasonal dynamics of spectral vegetation indices NDRE and NDVI for all four fields. - Supplementary Table 1: Correlation of all tested spectral vegetation indices with the four plant traits. - Supplementary Table 2: Estimated risk of N loss in the different treatments over the four fields. Raw data: - Wheat data of 2018. - Wheat data of 2019. - Spectral data collected from wheat over the two seasons.