caa a22 4500 463209265 CHVBK 20180405153135.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s10705-007-9114-6 doi (NATIONALLICENCE)springer-10.1007/s10705-007-9114-6 Development in nutrient balances in Danish agriculture 1980-2004 [Elektronische Daten] [Arne Kyllingsbæk, Jørgen Hansen] A farm-gate nutrient balance showed that the surpluses per hectare fell from 175 to 123kg N, from 29 to 13kg P and from 61 to 32kg K from 1979/80 to 2003/04. Consequently, the nutrient use efficiency (total output in % of total input) increased for N from 20% in 1979/80 to 37% in 2003/04, for P from 23% to 52% and for K from 18% to 43%. Parallel to the peak in surplus of N around 1980, elevated nitrogen concentrations were observed in ground and marine waters. A series of agro-environmental action plans were initiated, and the discharge of N to Danish coastal waters was reduced, though less than the reduction in surplus and losses from agriculture. In contrast to N, the reduction in P surplus was not reflected in any reduction in discharge of P from agriculture during the last two decades. A farm-gate account of N surplus is a reasonable indicator of potential N loss, whereas loss of P is mainly related to the soil P saturation level and to specific loss events. By preparing accounts for sub-sectors such as the arable and animal production sectors or for products within these sectors, farm-gate nutrient balances show the development in agricultural production, in addition to the trend in potential environmental impacts. Nutrient balances may thus link the environmental aspect to the economic aspect of agricultural production and assist in the monitoring of the sustainability of agriculture. Springer Science+Business Media B.V., 2007 Agriculture nationallicence Agri-environmental indicators nationallicence N, P, K balances nationallicence Loss of N and P nationallicence Kyllingsbæk Arne Faculty of Agricultural Sciences, Department of Agroecology, Research Centre Foulum, University of Aarhus, P.O. Box 50, 8830, Tjele, Denmark aut Hansen Jørgen Faculty of Agricultural Sciences, Department of Agroecology, Research Centre Foulum, University of Aarhus, P.O. Box 50, 8830, Tjele, Denmark aut Nutrient Cycling in Agroecosystems Springer Netherlands 79/3(2007-11-01), 267-280 1385-1314 79:3<267 2007 79 10705 https://doi.org/10.1007/s10705-007-9114-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10705-007-9114-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kyllingsbæk Arne Faculty of Agricultural Sciences, Department of Agroecology, Research Centre Foulum, University of Aarhus, P.O. Box 50, 8830, Tjele, Denmark aut NATIONALLICENCE 700 1- Hansen Jørgen Faculty of Agricultural Sciences, Department of Agroecology, Research Centre Foulum, University of Aarhus, P.O. Box 50, 8830, Tjele, Denmark aut NATIONALLICENCE 773 0- Nutrient Cycling in Agroecosystems Springer Netherlands 79/3(2007-11-01), 267-280 1385-1314 79:3<267 2007 79 10705 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer