Baseline for Brassica carinata Components of Nitrogen-Use Efficiency in Southern South America

Biofuels play an important role in the reduction of greenhouse gas emissions, but their production results gases such as nitrous oxide (N2O), mainly from nitrogen (N) fertilization. Brassica carinata (carinata) is unexplored winter crop world’s main cropping areas, with multiple applications (cover crop, jet biofuel, and animal feed, among others). We analyzed a set on-farm fertilization experiments (2016–2018) southern South America using quantile regression to establish baseline for both seed yield (YSEED) different components nitrogen-use efficiency (NUE). Maximum YSEED 50th 90th percentiles ranged 2.5 3.5 Mg ha−1, N availability 150–160 kg ha−1 (soil + fertilization). The NUE 3 13 per available. Carinata, absence other limiting factors, had high uptake (NUPT) capacity (1.0 1.5 NUPT available [soil fertilization]). explored rates no significant influence on oil concentrations (455 517 g kg−1) protein (192 253 kg−1). region has potential production, take up N.