About the event

European agriculture is challenged by the need to produce more crops with fewer inputs of fertilizers (especially nitrogen and phosphorus) under conditions of reduced or more variable water availability.

Projected climate changes indicate a higher variability in rainfall in the coming decades, with an increased risk of water shortage during summers, while water resources for irrigation will be at best maintained. N and P flows exceed the so-called planetary boundaries and the N and P from various sources including fertilizers are clearly responsible for major impacts on the environment (e.g. eutrophication of surface waters, emission of greenhouse gases such as N2O) in regions of intensive agriculture in Europe.

In addition, phosphate rocks were included in the list of 20 critical raw materials by the European Commission in 2014, which further pledges to reduce the use of P fertilizers significantly in the future. Meanwhile, socio-economic projections suggest a steady increase and volatility of fertilizers' prices.

Sustainable or ecological intensification of agroecosystems needs to be implemented by combining novel crop varieties and management approaches that make better use of below-ground biodiversity and processes to sustain high levels of productivity with reduced use of water and nutrient resources. There are different pathways to move towards biodiversity-based agriculture, and they largely depend on the farming systems (e.g. level of intensification, following conventional, organic or conservation agriculture principles) and regional context (e.g. specialized cereal-based agriculture or integrated crop and livestock production).

In the SolACE project, we have designed solutions (strategies and tools) that combine novel crop genotypes and agroecosystem management innovations to improve water and nutrient use efficiency. It looked at a range of agricultural contexts across pedo-climatic regions and farming systems of Europe.

In this context, the final SolACE stakeholder event aims to

• share and encourage dialogue about the key messages from the project,
• garner feedback and experiences on multi-actor projects at the European scale
• look at what needs to be achieved beyond the SolACE project

The event will feature contributions from a series of SolACE stakeholder workshops related to roots, microbial inoculants, crop modelling and on-farm experimentation.