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[目的]筛选出半干旱区谷子(Italian millet)覆膜种植最佳模式。[方法]供试谷子品种为晋谷43号。共设4个处理和1个对照(CK),分别为:T1全膜覆盖平作穴播(使用1.2 m膜),T2全膜覆盖垄沟种植,T3膜侧沟播(0.4 m膜),T4起垄不覆膜,T5露地条播(CK)。[结果]谷子覆膜栽培比露地早熟,其中全膜覆盖垄沟种植谷子产量最高为10 335.15 kg/hm2,比CK增产35.00%,水分利用效率为22.68 kg/(mm·hm2),比CK增加41.75%。全膜覆盖垄沟种植较其他处理明显提高集雨效果和保墒,有利于提高谷子水分利用效率及产量。[结论]该研究可为半干旱地区谷子地膜覆盖种植提供理论依据。
[Objective] The research aimed to screen out the best pattern of film mulching in millet of semi-arid area. [Method] The tested millet variety was Jinya 43. A total of four treatments and one CK (CK) were planted: T1 full-film mulching with barking (using 1.2 m film), T2 full mulching with furrow planting, T3 mulching with 0.4 m film, T4 ridge Not covered, T5 opencast (CK). [Result] The yield of millet was higher than that of open field. The highest millet yield was 10 335.15 kg / hm2, 35.00% higher than CK, and the water use efficiency was 22.68 kg / (mm · hm2) %. Compared with other treatments, whole-film mulching and furrow planting significantly improved the rain-collecting effect and soil moisture conservation, which was beneficial to improve the water use efficiency and yield of millet. [Conclusion] This study could provide the theoretical basis for the cultivation of millet mulch in semi-arid area.