Selenium fertilization for bio-fortification of food: an agro-eco system approach

The global importance of selenium (Se) deficiency to human and animal health has been recognized for decades, but strategic Se fertilization interventions were lacking. Our meta-analysis approach based on 243 experiments performed during 1960 to 2014 confirms the high impact of Se-fertilization as an effective agronomic bio-fortification strategy. Fertilizer formulation, dose and timing affect crop Se uptake, with highest uptake efficiencies for foliar and selenate based fertilizers. Minor influence of soil organic matter, total soil Se levels and acidity suggests that other agroecosystem​ properties like climate and bioavailable Se should be considered to optimize Se-fertilization. Tailor-made strategies are essential to combat the current low recoveries and the scarce resource availability.


The final publication is available at Springer

Written by NMI