Fletta eftir efnisorði "Áburður"

Atriði 1-3 af 3

Changes in soil carbon, nitrogen and sulphur content as influenced by liming and nitrogen fertilization of three energy crops

Šiaudinis, Gintaras; Liaudanskiene, Inga; Slepetiene, Alvyra (Agricultural University of Iceland, 2017)

An experiment with three perennial energy crops – common mugwort (Artemisia vulgaris L.), cup plant (Silphium perfoliatum L.) and virginia mallow (Sida hermaphrodita Rusby) has been carried out in Lithuania (55°43′N, 21°28′E) in order to evaluate the ...
Global phosphorus supply chain dynamics: Assessing regional impact to 2050

Nedelciu, Claudiu; Ragnarsdottir, Kristin Vala; Schlyter, Peter; Stjernquist, Ingrid (Elsevier BV, 2020-09)

Phosphorus (P) availability is essential for global food security. A system dynamics model running from 1961 to 2050 was built for this study, linking global P supply to social, economic and environmental dynamics at regional level. Simulation results ...
Global Phosphorus supply chain dynamics: Sustainability implications for the 21st century

Nedelciu, Claudiu (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2021-02)

Phosphorus is an essential yet irreplaceable macronutrient for agriculture and thus plays a key role in global food security. Most of the phosphate fertilizers are produced from phosphate rock, a finite mineral resource that is mined and processed at ...

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