P budget calculations of German farmland

• The livestock sector in Germany is characterized by regionally specialized managing systems. Livestock and further the biogasproduction is concentrated in the northwest and the south eastregions, resulting in locally high amounts of manures (livestock excreta and digestates).
• The research work described here aims at 1.) the budgeting of soil P on district level, and further 2.) the assessment of regional surplus of P in agricultural systems, in order to evaluate strategies for regionally decentralized manurenutrient management such as interregional transport or manure processing systems