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通过对春大麦１９个品种和育种材料在盆栽试验条件下鉴定，已筛选出５个具有高固氮作用的品种。在乙炔还原值方面，材料间的差异达２４倍。分析所有被研究的品种和材料的固氮活性变异系数达８３％，极端差异达３—１８倍。
Through the identification of 19 varieties and breeding materials of spring barley in pot experiment, 5 varieties with high nitrogen fixation have been screened out. In the acetylene reduction value, the difference between the materials up to 24 times. The coefficient of variation (CV) of nitrogen fixation activity of all cultivars and materials studied was 83% and the extreme difference was 3-18 times.