Joint measurements of NDVI and crop production data-set related to combination of management zones delineation and nitrogen fertilisation levels

Eleonora Cordero; Louis Longchamps; Raj Khosla; Dario Sacco

doi:10.1016/j.dib.2019.104968

Joint measurements of NDVI and crop production data-set related to combination of management zones delineation and nitrogen fertilisation levels

Data Brief. 2019 Dec 9:28:104968. doi: 10.1016/j.dib.2019.104968. eCollection 2020 Feb.

Authors

Eleonora Cordero¹, Louis Longchamps², Raj Khosla³, Dario Sacco¹

Affiliations

¹ Department of Agricultural, Forest and Food Sciences, University of Turin, Grugliasco, Italy.
² St-Jean-sur-Richelieu R&D Centre, Agriculture and Agri-Food Canada/Government of Canada, Saint-Jean-sur-Richelieu, QC, Canada.
³ Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523, USA.

Abstract

This research compared four nitrogen (N) management strategies (uniform N rate: UR, variable N rate based on crop proximal sensing: VR-PS, variable N rate based on management zones: VR-MZ and variable N rate based on integrating crop sensing and MZ: VR-PSMZ), evaluating their effect on maize grain yield, partial factor productivity (PFP_N), and net return above N fertiliser cost (RANC). The study provided a practical tool for choosing the fertilisation strategy that best performs in each agro-environment. These datasets are a supplementary material to the research paper by [3]. Data were collected over seven site-years experiments conducted in North-Eastern Colorado (USA). In dataset 1, for each site-year, data includes geo-referred points where grain yield and Normalised Difference Vegetation Index (NDVI) were measured, each one associated with its respective N rate, management zone (MZ), PFP_N, RANC, and N management strategy. In order to group the observations reflecting homogeneous crop vigour, NDVI values were clustered within NDVI classes. In dataset 2, the main soil properties measured in several geo-referred points in each location are provided.

Keywords: Data integration; Management-zones; Variable N rate.