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通过三种饲草(草木樨、箭舌豌豆、毛叶苕子)地理分期播种的研究,初步得出:草木樨喜温凉、耐寒、耐旱、抗一定高温,生长盛期干物质累积需较高温度(20～30℃);箭舌豌豆和毛叶苕子喜凉、耐寒、不耐高温。三种饲草均以春播生长状况为好,尤其是春播草木樨对气候资源的利用效率及能量、粗蛋白质产出高;草木樨的适割期在覆盖地面(覆盖土地面积的80％)后20～30天,箭舌豌豆在盛花后10～20天,毛叶苕子在盛花后0～30天。
According to the study of geographical sowing of three kinds of forage grass (Agkistrodon trichocarpa, Agkistrodon trichocarpa and Ficus pumilus), we can draw the conclusion that the high temperature and the dry matter accumulation of the vegetation are higher Temperature (20 ~ 30 ℃); Arrow tongue pea and hairy prickly heat, cold, high temperature. The spring forage growth status of all three forages was better, especially the spring mulching mulch had higher utilization efficiency and energy on climatic resources and higher crude protein yield. After the mulching stage covered the ground (covering 80% of the land area) 20 to 30 days, arrow tongue peas 10 to 20 days after the full bloom, hairy leaves in full bloom after flowering 0 to 30 days.