在干热的6、7、8月,美国东南部放牧地所利用的大多数冷季豆科牧草产量不高或持久性差。本研究于1985年相1986年春末或夏初将15种冷暖季豆科牧草播于密西西比州。分别测定在夏季的营养价值、相对适口性和干物质产量,并利用母羊的选择性采食测定适口性,试验结果表明,选出的暖季豆科牧草与苜蓿或红三叶相比,生产潜力很大,可缓解夏季放牧的公用草地上优质饲草不足的矛盾。 In June, July and August, the most cold legumes used in grazing lands in the southeastern United States were either poorly or poorly endowed. In this study, 15 species of leguminous plants were planted in Mississippi in late spring or early summer of 1985. The nutritional value, relative palatability and dry matter yield were measured in summer and the palatability of ewes was determined by selective feeding. The results showed that compared with alfalfa or red clover, The potential for production is high, alleviating the lack of quality fodder on public grasslands grazing in summer.