不同播种模式对紫花苜蓿和红豆草生产性能影响试验初报

Influence of Different Sowing Modes on the Productive Performance of Alfalfa and Sainfoin

[目的]为了解决甘肃临夏州高寒二阴地区牧草品种单一、蛋白质饲草严重不足的结构性矛盾。[方法]临夏县二阴地区开展了不同播种模式对紫花苜蓿与红豆草生产性能影响试验。[结果]混播第二年产干草12136kg/hm2,分别比单播红豆草和紫花苜蓿提高14.5%和42.0%,差异极显著(P<0.01);混播第三年产干草13 286kg/hm2,比单播红豆草和紫花苜蓿高分别提高22.8%和71.0%,差异极显著(P<0.01)。[结论]在甘肃临夏州二阴地区红豆草和紫花苜蓿混播是建立优质多年生豆科人工草地的最佳技术模式,其次为红豆草单播,紫花苜蓿单播的生产性能和适应性最差。

[Objective] The aim of this study was to solve the structural contradictions of a single forage grass varieties and serious shortage of protein forage grass in Linxia state. [Method] In Linxia state, different sowing modes were used in this experiment, and the influence on productive performance were analyzed. [Result] The hay yield by using mixed sowing modes including sainfoin and alfalfa was 12 136 kg/ hm2 in the second year, and it had increased by 14.5% and 42.0% than that of sainfoin and alfalfa by using single sowing model, respectively, which had a very significant difference on the hay yield （P〈0. 01）. The hay yield by using mixed sowing mode was 13 286 kg/hm2 in the third year, and it had increased by 22.8% and 71.0% than that of sainfoin and alfalfa by using single sowing model, respectively, which had a very significant difference on the hay yield （P〈0.01）. [Conclusion] The mixed sowing modes including sainfoin and alfalfa was the best technical mode for high-quality perennial leguminous artificial grassland establishment, then the single sowing mode by using sainfoin, and the productive performance and adaptation by only sowing alfalfa was worst.