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对低硒地区玉米植株中硒的含量分布规律进行了研究；采籽玉米成熟期根系＞茎叶雄穗（混）＞籽粒，仔粒中含硒量非常低；青贮玉米灌浆期叶片＞茎秆＞根系＞雄穗＞雌穗，下部茎＞上部茎，上部叶≈下部叶。用亚硒酸钠溶液浸种不利于提高玉米含硒量，叶喷可有效地提高玉米各器官含硒量，其含硒量随喷硒量的增加而增加，喷１５─７５ｇ／ｈｍ２可使玉米茎叶含硒量达到充足阈，喷硒对玉米产量没有明显提高。
The distribution of selenium in maize plants in low selenium area was studied. The root system of maize plants at maturity stage was> spikelets of stems and leaves> > Root> tassel> ear, lower stem> upper stem, upper leaf ≈ lower leaf. Seed soaking with sodium selenite solution is not conducive to improve the selenium content of corn, leaf spray can effectively improve the selenium content of various organs of corn, the selenium content increases with the increase of selenium spray, spraying 15 ─ 75g / hm2 can make corn Leaf selenium content to achieve adequate threshold, selenium spray on corn yield did not significantly improve.