News » EU JRC call for data and publications on recycled manure products

The European Commission JRC has renewed a call for study data or publications concerning the agronomic effects of processed manure orfertiliser products recycled from manure. This is part of the DG ENVI ?SafeManure? study addressing application limits for recycled fertilisers produced from manure (?processed manure? under the Nitrates Directive). The data mustinclude experimental data (pot or field trials, leaching tests) comparing processed manure, manure recycled product to mineral fertiliser and to a control.

JRC is interested in any nitrogen-containing material recovered from or processed from any type of animal manure, slurry or litter, with manure only as input material or manure mixed with other materials (minimum c.10% manure): including e.g. mineral products recovered from manure processing (such as struvite or other precipitated salts containing nitrogen, ammonium salts recovered from biogas), ?mineral concentrates? (from membrane separation), digestate, compost, dried-pelletised ? or limed manure or similar, manure ashes, processed ashes, biochars, pyrolysis materials, etc.

Data should address, in conditions relevant for Europe, one or more ofthe following: nitrogen plant uptake, efficiency, impact on cropyield, and/or nitrogen leaching. For e.g. struvite, data should enableto relate crop yield to nitrogen application (not only to phosphorus).The objective is to compare the agronomic performance and/or potential environmental impacts of the nitrogen present in the processed manure materials to those of mineral nitrogen fertilisers. The mineralfertilisers compared may be the same as the recovered product (e.g.comparison of ammonium sulphate from digester gas stripping with synthetic ammonium sulphate) or may be different (e.g. comparison of synthetic urea with dried manure). Information provided should be inEnglish or and English summary/translation must be provided (e.g.summary and translation of headers of data tables).

Any relevant data by 10^th February 2019 to: info@phosphorusplatform.eu (unless data is confidential) and we will forward to the European Commission (JRC).