本研究的目的是对“中苎1号”和“中苎2号”苎麻的营养价值进行初步评价,为苎麻作牧草利用提供参考。试验结果表明,苎麻的营养品质优于黑麦草和象草,和苜蓿相近;80cm收割高度下苎麻的叶、茎粗蛋白含量和叶茎比均显著高于100cm和120cm(P<0.05)的收割高度,叶、茎粗纤维含量则显著低于100cm和120cm(P<0.05),同时干物质产量和粗蛋白产量均显著高于60cm(P<0.05),生长时间相对100cm和120cm分别缩短了8d和13d。此外,“中苎1号”在80cm收割高度下的粗蛋白日增产速率显著高于其他收割高度(P<0.05)。综上可知,“中苎1号”和“中苎2号”可以做牧草开发利用。综合考虑干物质产量、营养品质、生产时间及成本,“中苎1号”和“中苎2号”在“二麻”高温期间整株收获作为反刍动物的饲草开发利用时,80cm左右是最佳的收割高度。 The purpose of this study was to evaluate the nutritional value of “Ramie No. 1” and “Ramie No. 2” “Ramie, and to provide a reference for the utilization of Ramie for pasture. The results showed that the nutritional quality of ramie was better than that of ryegrass and grass, which was similar to that of alfalfa. The leaf and stem crude protein content and leaf-stem ratio of ramie at 80 cm harvest height were significantly higher than those of 100 cm and 120 cm (P <0.05) (P <0.05). The dry matter yield and crude protein yield were significantly higher than 60cm (P <0.05), the growth time was shorter than that of 100cm and 120cm respectively for 8d And 13d. In addition, the daily yield of crude protein of ”Zhongzhu 1“ at 80cm harvest height was significantly higher than other harvesting heights (P <0.05). In summary, we can see that ”Zhongzhu 1“ and ”Zhongzhu 2“ can be used for the development and utilization of forage grass. Considering dry matter production, nutritional quality, production time and cost, the whole plant was harvested as a forage for ruminants at ”Zhongzhu No.1“ and ”Zhongzhu2“ during ”high temperature" When used, about 80cm is the best harvesting height.