采用田 间试验 方法研究 了高产 条件下硅 锌锰配合 对玉 米的营 养效应 及其 改善玉 米 Ｎ、 Ｐ、 Ｋ、 Ｚｎ 、 Ｍ ｎ 营 养状况 的作 用。结果 表明在 Ｎ Ｐ Ｋ 肥基础 上硅 锌锰配 合比 锌锰配 合更 有效 地增加穗 长、减少 秃尖 、增加穗 粒数 和千 粒重， 进一 步提 高玉 米的 产量； 硅与 锌锰 配合 可缓 解拔 节期 Ｐ Ｚｎ 颉颃， 提高拔节 期玉米 植株和腊 熟期叶片 中 Ｎ、 Ｐ、 Ｋ、 Ｚｎ 、 Ｍ ｎ 含量 ，有利于 玉米 后期营 养；硅的有益 效应每公 顷施用 硅酸钠 ９０ｋｇ 好 于 ４ ５ｋ ｇ。 Field experiments were conducted to study the nutritional effects of Si, Zn and Mn fertilizers on maize and their effects on improving N, P, K, Zn and Mn nutrition status in maize. The results showed that on the basis of NPK fertilizers, Si-Zn-Mn complexed Zn-Mn complexation more effectively increased spike length, decreased bald tip, increased grains per spike and 1000-grain weight, and further increased the yield of maize; P Zn antagonist, increasing the content of N, P, K, Zn and Mn in leaves of corn plants and hatching stage at jointing stage was beneficial to the nutrition of later corn. The beneficial effect of silicon was 90kg sodium silicate per hectare which was better than 45kg.