摘要
在青海省达日县和玛沁县“黑土型”退化草地上引种的羊茅属8种牧草中有4个可安全越冬，抗寒性强，适应性随栽培年限延长而提高。其中，中华羊茅第2年开始生长发育即达完整，第2、第3年单位面积草产量接近1000g／m^2，种子产量高。下繁草毛稃羊茅、西北羊茅和紫羊茅（同德）第2年生殖枝占20％～35％，生殖生长不整齐，第3年开始产量大幅度增加，适应性增强。越冬良好的4种牧草对“黑土型”退化草地的适应性较强。
Eight introduced Festuca species in ＂Black Soil Type＂ degraded grassland of Dari county and Maqing county were observed for 3 or 4 years respectively, 4 species had excellent cold resistance and adaptability was enhanced with the increase of cultivation time. The growth of Festuca sinensis was perfect at the second year, the yield was about 1000 g/m2 in the second and third year and seed yield were high. The propotion of reproductive branches of Festuca kirilovii, F. ryloviana, and F. rubra L. （Tongde） in the second year were 20%-35%. It showed that reproductive growth was not regular. The yield increased by a large margin and adaptability was strengthened in the third year. The result showed that 4 forages with high rate of over-winter had better adaptation to ＂Black Soil Type＂ degraded grassland.
出处
《中国草地学报》
CSCD
2006年第1期22-25,共4页
Chinese Journal of Grassland
基金
"十五"国家科技攻关计划重大项目"江河源区退化草地治理技术与示范"(2001BA606A-02)子专题"优良牧草筛选与人工草地种植
管理技术与示范"
"九五"青海省攻关项目"‘黑土型’退化草地植被恢复技术研究"(96-N-112)部分内容
关键词
羊茅属
引种
“黑土型”退化草地
适应性
Festuca
Introduction
＂Black Soil Type＂ degraded grassland
Adaptation
