A note on sodium concentrations in New Zealand pasture species

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Abstract
Sodium concentration varied widely in 21 pasture species grown as individual species under standard pot conditions. Red clover, alsike clover, lucerne, browntop, timothy, paspalum, and kikuyu contained low concentrations of sodium (less than 0.05%), and would not provide adequate sodium for grazing animals. White clover, ryegrasses, and cocksfoot were intermediate, and iotus, subterranean clover, and Yorkshire fog had a higher sodium concentration (0.15%). Phalaris was outstanding in that its sodium concentration was double that of any other species.