Data för: Nitrogen dynamics in three grain legumes species are differently affected by weed competition Data for: Nitrogen dynamics in three grain legumes species are differently affected by weed competition 2026-68-1 SLU.vpe.2026.4.2.IÄ-2 https://doi.org/10.5878/n7y6-td54 Swedish National Data Service Svensk nationell datatjänst Landing page Data för: Nitrogen dynamics in three grain legumes species are differently affected by weed competition Data for: Nitrogen dynamics in three grain legumes species are differently affected by weed competition 2026-68-1 SLU.vpe.2026.4.2.IÄ-2 https://doi.org/10.5878/n7y6-td54 Berckx, Fede Berckx, Fede Jäck, Ortud Jäck, Ortud 2018-02402_Formas 2018-02402_Formas Swedish National Data Service Svensk nationell datatjänst Landing page soybean biological nitrogen fixation crop weed competition organic agriculture lupinus angustifolius l. vicia faba l. glycine max (l.) merr. The dataset contains data generated during the FORMAS funded project 2018-02402: “Fostering organic cultivation of seed legumes; a multi-scale feasibility study for soybean and lupin production in Sweden”. The dataet contains measurements such as N and C isotopes, and yield parameters, of faba bean, soybean and lupin under increasing weed competition. Please refer to the data description document for a description of the data. The data was used in the associated study, in which the results are presented and discussed. Measurements were taken at three different locations: Alnarp (Skåne county, 55° 40’ 18.3”N, 13° 6’ 6.9”E), Roma (Gotland county, 57° 29’ 8.8”N, 18° 28’ 51.4” E) and Lövsta (Uppland county, 59° 49’ 58.6” N, 17° 48’ 52.6” E), in 2020 and 2021. Dataset dimensions: 1008 rows × 37 columns Datasetet innehåller data som genererats under det FORMAS-finansierade projektet 2018-02402: ”Främjande av ekologisk odling av baljväxter; en flerskalig förstudie för sojaböns- och lupinproduktion i Sverige”. Datasetet innehåller mätningar som kväve- och koldioxidisotoper, samt avkastningsparametrar, för bondbönor, sojabönor och lupin under ökande ogräskonkurrens. Se databeskrivningsdokumentet för en beskrivning av data. Data användes i den tillhörande studien, där resultaten presenteras och diskuteras. Mätningar gjordes på tre olika platser: Alnarp (Skåne län, 55° 40’ 18,3”N, 13° 6’ 6,9”Ö), Roma (Gotlands län, 57° 29’ 8,8”N, 18° 28’ 51,4”Ö) och Lövsta (Upplands län, 59° 49’ 58,6”N, 17° 48’ 52,6”Ö), under 2020 och 2021. Datamängdens dimensioner: 1008 rader × 37 kolumner 2020 2021 Sweden Sverige Numeric Text Sampling occured at two different points in time for the crops: at flowering and at maturity. Samples included both weeds and the crop. Different parameters were assessed from each sample (plot): dry biomass of the weeds, dry biomass of the crop shoots, dry biomass of the seeds, N concentration, N isotopes, C concentration, C isotopes, crop height, yield parameters (e.g. thousand kernel weight, tonens per hectare, protein yield).Sampling occured at two different points in time for the crops: at flowering and at maturity. Samples included both weeds and the crop. Different parameters were assessed from each sample (plot): dry biomass of the weeds, dry biomass of the crop shoots, dry biomass of the seeds, N concentration, N isotopes, C concentration, C isotopes, crop height, yield parameters (e.g. thousand kernel weight, tonens per hectare, protein yield). Dry biomass was determined by oven drying samples prior to taking weight using a scale. N and C concentration and isotopes were assessed by oven drying samples, milling to a fine powder, and sending for external analysis. Nitrogen derived from atmosphere was determined based on the natural abundance method, as described in: UNKOVICH, Murray, et al. Measuring plant-associated nitrogen fixation in agricultural systems. 2008. Yield parameters were determined from plots, and re-calculated to tonnes per hectare.Dry biomass was determined by oven drying samples prior to taking weight using a scale. N and C concentration and isotopes were assessed by oven drying samples, milling to a fine powder, and sending for external analysis. Nitrogen derived from atmosphere was determined based on the natural abundance method, as described in: UNKOVICH, Murray, et al. Measuring plant-associated nitrogen fixation in agricultural systems. 2008. Yield parameters were determined from plots, and re-calculated to tonnes per hectare. Field/Intervention experimentField/Intervention experiment FältexperimentFältexperiment Access to data through SND. Data are freely accessible. Åtkomst till data via SND. Data är fritt tillgängliga. openAccess