圆叶决明是多年生豆科决明属夏季绿肥牧草 ,是从 1990年澳大利亚国际农业研究中心引进的 10 9种牧草中筛选出的综合性状优良的牧草品种。为研究该种群在我国南方中亚热带红壤地区的适应性和综合应用价值 ,1992年又引进 4个品种的 4 0个新品系进行比较试验 ,本文就试验结果进行 Cassia obtusifolia is a perennial leguminosae genus of summer green manure grass, is from 1990 Australia International Agricultural Research Center introduced 109 kinds of forage grass out of the comprehensive good traits. In order to study the adaptability and comprehensive application value of this population in southern red soils of southern China, 40 new lines of 4 cultivars were introduced in 1992 for comparative experiments. In this paper, the experimental results