The importance of sodium in the food chain of plants, animals and man

Anke, Manfred and Regius-Mőcsényi, Ágnes and Lösch, Edda and Müller, R. and Gundel, János (2007) The importance of sodium in the food chain of plants, animals and man. ÁLLATTENYÉSZTÉS ÉS TAKARMÁNYOZÁS, 56 (2). pp. 183-192. ISSN 0230-1814

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Abstract

The geological origin of the soils influences the sodium concentration of the plánt species significantly, despite fertilisation with sodium from manure, phosphate and nitrogén fertilisers. In Germany, the Holocene flood plains deliver, on average, the highest sodium amounts to the vegetation, whereas Syenite, Gneiss, Prophyry and Gránité weathering soils produce a vegetation that is by a quarter poorer in sodium. In Hungary and Romania, the vegetation of the "szikes" is richest in sodium whereas the weathering soils of the Triassic time are by one third poorer in sodium. Rye, wheat and red clover of the fields and meadows in Germany and Hungary contain similar sodium concentrations. Trifolium repens, Lolium perene and especially Plantago lanceolata accumulate high sodium concentrations; Medicago falcato, Alchemilla vvulgaris and Avena sotivea store significantly lower sodium amounts. The winter grazings of game contain between 500 to 1600 mg Na/kg dry matter, so that the animals nedd sodium supplementation. Leaf-rich plants accumulate more sodium than stem-rich vegetables. Sodium is concentrated in leaves. Flowers, fruits, and most kinds of seeds and grain are poor in sodium. With increasing age of annual plánt species, their sodium concentration decreases from April to the end of June oy about one quarter to two thirds of the sodium concentration found in spring.

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