Research need from Focus Group: Devise a standard way of assessing nutrient use efficiency of fertilising products, including meta-analysis of existing data and reports

This need for research has been identified in FG 19 on “Nutrient recycling”. If you want to know more about it, check the final report of the Focus Group.

When fostering the recycling of nutrients, both agronomic yield assurances and sufficient environmental safeguards need to be considered. Specific nutrient use efficiency, as well as nutrient losses, need to be quantified. Significant amounts of work have already been carried out on this issue and therefore the compilation and meta-analysis of existing and reported data is also required. Finally, unfortunately, different countries and research institutes use different approaches in defining nutrient use efficiency which raises the need for standardisation and model calibration.