Sustainable manure and nutrient management for reduction of nutrient loss in the Baltic Sea Region

October 2018 -
September 2021


Policy areas Nutri & Bioeconomy
2. Natural resources 2.1 Clear waters


A large share of the nutrient load into the Baltic Sea comes from industrial agriculture. More efficient manure management would reduce the negative impact of farming on the sea. The platform SuMaNu gathers and synthesises best practices and recommendations on nutrient management from the Interreg Baltic Sea Region projects Manure Standards and Baltic Slurry Acidification, as well as the BONUS project PROMISE and Interreg Central Baltic’s GreenAgri. Best practices and recommendations are translated for and made available to authorities, policy makers, advisors and farmers.



Keeping nutrients in food production

Efficient manure and nutrient management in agriculture is beneficial for the environment and for the farmer – and thus, the only way to secure sustainable food production in the future. Nutrient loss from fields to waterways causes eutrophication and livestock production is the main source of ammonia emissions, causing acidification, eutrophication and the formation of unhealthy particles. The loss of valuable nutrients is also an economic loss for the farmer. SuMaNu analyses and synthesises the results and recommendations of selected cooperation projects which aimed towards agro-environmental sustainability and seeks to link them better to policies.

Four approaches - from manure to soil and air

SuMaNu combines Interreg Baltic Sea Region projects Baltic Slurry Acidification and Manure Standards, Interreg Central Baltic project GreenAgri and BONUS Programme project BONUS PROMISE. Baltic Slurry Acidification aims to reduce ammonia emissions from livestock production by promoting slurry acidification technologies. Manure Standards develops joint guidelines for more efficient collection and usage of manure data. GreenAgri is aimed at reducing nutrient losses in the Baltic States by introducing and testing environmentally-friendly management of organic fertilizers. BONUS PROMISE evaluates methods to close the agricultural phosphorus cycle with a special view on contamination risks when recycling organic waste materials. Also, the findings of previous projects, such as Baltic Manure, Baltic Compass and Baltic Compact will be considered.

Towards a regional and a more holistic view on sustainable nutrient management

The SuMaNu synthesis on the solutions developed in the four projects is used to formulate recommendations for environmentally and economically sustainable manure management in order to better link project results and policies. SuMaNu targets this information nationally and internationally, especially to policy-makers. The communication is also directed to other stakeholders, in particular to farmers via farmers’ unions and advisory services.


Highlights by mid-term:

The SUMANU partners synthesised good management practices for sustainable manure nutrient use that were developed or tested in the previous Interreg and BONUS projects: for example, multiphase feeding of farm animals or manure spreading when crops were growing to maximize nutrient uptake. The partners presented this synthesis at the regional workshop on nutrient recycling measures organised by the Baltic Marine Environment Protection Commission (HELCOM). They also discussed these good management practices with national ministries of agriculture and environment, farmers’ and environmental associations.

HELCOM used the results of this synthesis and the discussion at the workshop to further develop a joint strategy for nutrient recycling in the Baltic Sea region and to identify measures that would help to reach its goals. This strategy aims to increase nutrient recycling in the Baltic Sea region and decrease nutrient loss from agricultural areas. In addition, based on this synthesis, the partners developed recommendations into six policy briefs on, for example, phosphorus planning and regional nutrient reallocation. They presented and discussed these policy briefs at the HELCOM Stakeholder Conference 2020. HELCOM used these inputs to prepare proposals on new actions that would be added to the HELCOM Baltic Sea Action Plan during the current update. In preparation for the HELCOM events, the platform cooperated actively with the coordinators of the EU Strategy for the Baltic Sea Region: from policy areas Nutri and Bioeconomy.


Projects represented in the platform:

Project Stories


€ 1.00
€ 0.77
Eni + Russia
€ 0.00
€ 0.00



Project manager

Natural Resources Institute Finland (Luke)

Minna Sarvi

+ 358 295 326 768

Legal representative

Natural Resources Institute Finland (Luke)

Eeva-Liisa Ryhänen

+ 358 295 326 493

Financial manager

Luonnonvarakeskus Natural Resources Institute Finland

Raili Keronen

+ 358 295 324 126

Communication manager

The Foundation for a Living Baltic Sea (BSAG)

Paula Biveson

+ 46 730 801 088