优质高产牧草拉巴豆引种利用研究

Study on the introduction and utilization of high-yielding quality Lablab purpureus(L.) Sweet forage

为了解决广西豆科牧草品种比较缺乏的问题,试验引进拉巴豆[Lablab purpureus(L.)Sweet]品种,经多年适应性观察后,采用单株筛选的方法,筛选出表现优良的植株进行扩繁,经过品种比较试验、区域试验和动物饲喂试验,测定了拉巴豆产量、营养成分和动物增重情况。结果表明:拉巴豆适应性广,抗寒,产草量高,年平均鲜草、干草产量均为最高;拉巴豆饲喂动物效果好,日增重相对提高;奶牛产奶量提高18.76%;拉巴豆生长速度快,蛋白质含量达17.8%,具有较好的应用价值。

To solve the problem of the lack of leguminous forage species in Guangxi province, the variety of Lablab purpureus （ L. ） Sweet was introduced. The plants with high quality were selected by means of the single plant selection through the adaptability observation for many years, and then the plants were propagated for the variety comparative test, regional test and animal feeding test. The yield and nutritional components of Lablab purpureus （ L. ） Sweet and weight gain of animals was determined. The results showed that Lablab purpureus （ L. ） Sweet had wide adaptability, cold resistance and high forage yield. The average annual yields of fresh and dried grass were highest; the feeding effects in ani- mals were good, and the daily gain of animals were relatively increased; the milk yields of dairy cattle increased by 18.76% ; Lablab purpureus （ L. ） Sweet had fast growth and its protein content was 17.8%. The results indicate that Lablab purpureus （ L. ） Sweet had good application Value.