Auburger, SebastianBahrs, EnnoRuckelshausen, A.Meyer-Aurich, A.Rath, T.Recke, G.Theuvsen, B.2017-06-212017-06-212016978-3-88579-647-3Discussion about the amendment of German fertilizer ordinance (DüV) contains consideration of digestate of plant origin from biogas production into spreading limits for N and P nutrients. Consequentially transport distances and costs will increase. A distribution algorithm for nitrogen was developed for the highly influcenced study area, which consists of the German provinces Lower Saxony and North Rhine-Westphalia. The algorithm is based on neighborly relations (linear and street distances) and distributes N nutrients until every municipality is below 170 kg N per ha utilized agricultural land. Calculated transport distances resulted in additional transport costs between 15 and 20 Mio. Euro annually for the study area.deText/Conference Paper1617-5468