@article {67, title = {Nitrogen balance and mineral nitrogen content in the soil in a long experiment with maize under different systems of N fertilization.}, journal = {Plant Soil Environment}, volume = {49}, year = {2003}, pages = {554-559}, abstract = {The effect of different systems of N fertilization on nitrogen balance and N transformation in the soil was studied in long-term stationary experiments (1991{\textendash}2002) with successive growing of maize. Average dry matter yield for the control without fertilization in the period 1991{\textendash}2002 was 11.67 t of dry matter per ha, which was by 2{\textendash}2.9 t less than for fertilization treatments. Statistically significant differences between the control and fertilization treatments were determined for the first time in the 4th experimental year. Average nitrogen uptake by the aboveground biomass was 116 kg N/ha for the control, 162{\textendash}170 kg N/ha for fertilization treatments. All experimental treatments had a negative balance of N inputs and outputs, and it was {\textendash}1394 kg N/ha for the control (for 12 experimental years). After the application of mineral fertilizers, a lower content of total carbon and nitrogen was measured in the topsoil compared to the control and treatments with organic fertilization. The changes in the nitrogen regime of soil were characterized by the content of extractable nitrogen and carbon in extractions by 0.01M CaCl2. With respect to the content of mineral nitrogen and easily extractable organic nitrogen and carbon in the topsoil the control was most stable followed by farmyard manure treatment. Soil lysimeters were installed in these experiments (depth 60 cm, size 0.2 m2). For an eight-year period (1994/2002) 11.78 kg N-NO3 {\textendash}/ha were determined in lysimetric waters. These values for fertilization treatments ranged from 21.0 to 58.2 kg N-NO3 {\textendash}/ha. Straw application reduced nitrate contents in lysimetric waters.}, keywords = {EPNB}, author = {Balik, J and Cerny, J and Tlustos, P and Zitkova, M} } @article {Zurek2018, title = {{Assessing Sustainable Food and Nutrition Security of the EU Food System {\textemdash} An Integrated Approach}}, journal = {Sustainability}, volume = {10}, number = {11}, year = {2018}, pages = {4271}, doi = {10.3390/su10114271}, author = {Zurek, Monika and Hebinck, Aniek and Leip, Adrian and Vervoort, Joost and Kuiper, Marijke and Garrone, Maria and Havlik, Petr and Heckelei, Thomas and Hornborg, Sara and Ingram, John and Kuijsten, Anneleen and Shutes, Lindsay and Geleijnse, Johanna M and Terluin, Ida and van{\textquoteright}t Veer, Pieter and Wijnands, Jo and Zimmermann, Andrea and Achterbosch, Thom J. and Havl, Petr} } @article {Parodi2018a, title = {{The potential of future foods for sustainable and healthy diets}}, journal = {Nature Sustainability}, volume = {1}, number = {12}, year = {2018}, pages = {782{\textendash}789}, publisher = {Springer US}, abstract = {Altering diets is increasingly acknowledged as an important solution to feed the world{\textquoteright}s growing population within the planetary boundaries. In our search for a planet-friendly diet, the main focus has been on eating more plant-source foods, and eating no or less animal-source foods, while the potential of future foods, such as insects, seaweed or cultured meat has been underexplored. Here we show that compared to current animal-source foods, future foods have major environmental benefits while safeguarding the intake of essential micronutrients. The complete array of essential nutrients in the mixture of future foods makes them good-quality alternatives for current animal-source foods compared to plant-source foods. Moreover, future foods are land-efficient alternatives for animal-source foods, and if produced with renewable energy, they also offer greenhouse gas benefits. Further research on nutrient bioavailability and digestibility, food safety, production costs and consumer acceptance will determine their role as main food sources in future diets.}, issn = {23989629}, doi = {10.1038/s41893-018-0189-7}, url = {http://dx.doi.org/10.1038/s41893-018-0189-7 http://www.nature.com/articles/s41893-018-0189-7}, author = {Parodi, Alejandro and Leip, Adrian and De Boer, I. J.M. M. and Slegers, P. M. and Ziegler, F. and Temme, E. H.M. M. and Herrero, M. and Tuomisto, Hanna L. and Valin, H. and Van Middelaar, C. E. and Van Loon, J. J.A. A. and van Zanten, Hannah H. E.} } @article {Kanter2020, title = {{A framework for nitrogen futures in the shared socioeconomic pathways}}, journal = {Global Environmental Change}, year = {2020}, keywords = {corresponding author, s}, author = {Kanter, David R and Winiwarter, Wilfried and Bodirsky, Benjamin and Bouwman, Lex and Boyer, Elizabeth and Buckle, Simon and Compton, Jana and Dalgaard, Tommy and wim de Vries and Lecl{\`e}re, David and Leip, Adrian and Muller, Christoph and Popp, Alexander and Raghuram, Nandula and Rao, Shilpa and Sutton, Mark A. and Tian, Hanqin and Westhoek, Henk and Zhang, Xin and Zurek, Monika} }