在陇东旱塬区自然条件下，引进10个玉米品种露地种植，并对其主要农艺性状和产量进行了试验观察。结果表明:瑞普909和联创825产量分别为13 508.33、13 383.33 kg/hm2，比对照品种先玉335增产12.18%、11.14%，综合性状优良，抗旱性较强，产量较高，适宜在陇东旱塬区免地膜露地种植；强盛12号和MC703产量分别为12 900.00、12 891.67 kg/hm2，比对照增产7.13%、7.06%，差异显著(P ＜ 0.05)，可作为搭配品种在陇东旱塬区露地种植。

Ten corn cultivars were introduced in the open field under the natural conditions in the dryland area of Eastern Gansu Province， and the main agronomic characters and yield were observed. The results showed that the yield of Ruipu 909 and Lianchuang 825 were 13 508.33 kg/hm2 and 13 383.33 kg/hm2， respectively， which were 12.18% and 11.14% higher than those of the control. The two cultivars had good comprehensive characters， strong drought resistance and high yield， and were suitable to be growing in the open field without plastic film in the Longdong dryland area. The yield of Qiangsheng 12 and MC703 were 12 900.00 kg/hm2 and 12 891.67 kg/hm2， respectively， which were 7.13% and 7.06% higher than those of the control， and the difference was significant(P < 0.05)， which could be used as a combination cultivars in the open field of the dryland area of Eastern Gansu.

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农业科技创新基金“甘肃省地膜残留污染综合防控技术研究”(2020GSNKYTFS01)。