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为提高香格里拉高寒地区饲草生产能力,在小中甸镇开展了牧草混播组合试验。试验设5个混播组合(A__1、A_2、A_3、A_4、A_5),随机区组设计,连续两年对牧草产量和组分进行测定,第2年取混合样对营养含量进行分析。结果表明,A_1和A_5组合牧草产量显著高于A_2、A_3和A_4(P<0.05);A_3、A_1、A_5年度间群落组分变化不大,稳定性较强;A_2、A_4、A_5的粗蛋白含量较高,均超过24%。3项指标综合考虑,A_1[安巴鸭茅(Dactylis glomerata cv.A_nmba)+草地休衣白三叶(Trifolium repens cv.Grasslands huia)+红三叶(T.pratense)]和A_5[安巴鸭茅+雅晴多年生黑麦草(Lolium perenne cv.Yatsyn)+海法白三叶(T.repens cv.Haifa)+普纳菊苣(Cichorium intybus cv.Puna)]适宜在香格里拉高寒地区种植应用。
In order to improve forage production capacity in the alpine region of Shangri-La, a mixed cropping experiment was conducted in Xiaozhongdian. Five mixed-cropping combinations (A__1, A_2, A_3, A_4 and A_5) were designed and randomized block design. The yield and components of forage were determined for two consecutive years. The second year, the mixed samples were used to analyze the nutrient content. The results showed that the forage yield of A_1 and A_5 was significantly higher than that of A_2, A_3 and A_4 (P <0.05). The variation of A_3, A_1 and A_5 was less and the stability was stronger. The crude protein of A_2, A_4 and A_5 High content, both more than 24%. The three indicators considered, A_1 [Dactylis glomerata cv. A_nmba + Trifolium repens cv. Grasslands huia + T. pratense] and A_5 [ Lolium perenne cv. Yatsyn + T. repens cv. Haifa + Cichorium intybus cv. Puna) is suitable for planting in the alpine region of Shangri-La.