绿洲区苜蓿与无芒雀麦、鸭茅的两种比例混播试验研究

Effect of Different Mixed Seeding Proportion on the Yield and Quality of the Second Mixture Pasture(Medicago + Bromus inermis,Dactylis glomerata)

【目的】分析紫花苜蓿(Medicago sativa L.)与无芒雀麦(Bromus inermis Leyss)、鸭茅(Dactylis glomerataL.)以不同比例间行混播的经济性状。【方法】观测各混播处理牧草的物候期、生长速度、产草量,养分分析法测定牧草营养成分。【结果】四个混播处理各牧草生长速度、产草量及营养成分间差异显著。处理B2生长速度和粗蛋白含量最高,年总产草量处理A2最高。【结论】紫花苜蓿+无芒雀麦6∶4混播(即处理B2)生长高度和产草量最高,粗蛋白和粗脂肪含量显著高于其他处理,且酸性洗涤纤维含量最低。

[ Objective ] Different mixed seeding proportion （ Medicago ＋ Bromus, Dactylis glomerata） was sowed in alternating rows to analyze the economic characters. [ Method ] The height, growth speed and nutrient components of each mixed treatment were measured and analyzed. [ Result ] It showed that the height, growth speed and nutrient components had significant difference. The highest growth speed and crude protein content was treatment B：, and the highest of total annum forage production was treatment A2. [ Conclusion ] According to each indicator, it can be concluded that the height, growth speed, crude protein content and crude fat content in this processing are higher than those of other treatments, the ADF （ acid detergent fiber） content is the lowest as the proportion of and Bromus inermis is 6：4