The EIP-AGRI Focus Group on Fertiliser efficiency - horticulture in open field brought together 20 experts to find answers to this question. The final report, published in July 2016, contains a set of innovative fertilisation approaches, ideas for Operational Groups, needs from practice, recommendations for farmers and advisers and links to documented best practices. The experts collected and discussed many innovative techniques to reduce nutrient losses in soil-grown vegetable open field systems. They also looked at the implementation rate of these techniques in different European regions, discussed issues restricting implementation and made an analysis of the application of innovative techniques to optimise fertiliser use and nutrient recycling.