The distribution of zinc in the organs of ripening stage spring maize was not the same: kernels > stem and leaves > roots and the zinc content in the middle was higher than that in the upper and lower part of corn ear.

• 成熟期春玉米植株中锌的分布不同；即籽粒>茎、叶>根；而玉米果穗中部籽粒的锌含量明显高于上下两端.