NNI Yield components Database

This dataset contains the result of extracting data of plant biomass, plant N concentration, nitrogen nutrition index (NNI), grain number, grain weight, and grain yield from 15 papers for maize, rice, and wheat crop species. This dataset contributed to improving the understanding of the association between NNI and yield formation with implications for the N nutrition diagnosis, breeding programs, and crop modeling. For cite the dataset, please use: Rodriguez, I.M; Lacasa, J; Lemaire, G; Zhao, B; Ata-Ul-Karim, S.T; Ciampitti, I. A. Nitrogen nutrition index and yield formation: A cross-species comparison for maize, rice, and wheat field crops.