1. Soil selenium content has an increasing effect on plant height, ear position and visible leaf number of maize. The three indexes of corn in selenium-enriched region are higher than non-selenium-richregion, but the yieldsin selenium-enriched regionare not higher than that of non-selenium-richregion. 2 The yields of the tested varieties were Kangnongyu 108 (7822.6 kg/hm 2 ), Huayu 11 (7302.11 kg/hm 2 ), Shuangyu 919 (6940.47 kg/hm 2 ) and Heshengyu 718 (6860.41 kg/hm 2 ). Zhengda 999 (6374.98 kg/hm 2 ), Wanyu 168 (5964.29 kg/hm 2 ), Endan 804 (5889.69 kg/hm 2 ),, Xingnongdan No. 3 (5692.68 kg/hm 2 ). 3 Selenium content in soil promoted the selenium content of corn kernels. The selenium content of grain in the tested varieties was: Xingnongdan No.3, Shuangyu 919, Wanyu168, Endan 804, Kangnongyu 108, Zhengda 999, Huayu 11, Heshengyu 718. Key words: corn variety ,selenium content ,selenium soil background 硒( Se) 是人体必需的微量元素之一 [1] ,对防治疾病、增进健康和延缓衰老具有重要意义 [2] 。世界上土壤含硒量一般在 0.01-2.00mg/kg 之间 [3] ,且土壤中硒的分布极不均匀,在我国多数地区处于缺硒地带 [4-6] ,无法满足人体所需的硒含量,致使人体缺硒,导致克山病、大骨节病等疾病 [7] 。要改变目前缺硒的状态,通过作物富硒来补充人体硒含量是公认的直接、安全有效的补硒途径 [8] 。