【摘要】 采用单因素随机区组设计 ,研究了春季不同时期施肥对多年生黑麦草 (LoliumperenneL .)种子生产性能的影响。结果表明 :春季不同时期施肥处理间差异极显著 (P <0 .0 1) ,以返青期和分蘖至拔节期施肥的种子产量最高 (平均达到 715 .2kg/hm2 )。因此 ,在返青期或分蘖至拔节期施肥是提高多年生黑麦草种子产量的有效途径之一更多还原

【Abstract】 The Seed productivity of turf-type perennial ryegrass(Lolium perenne L.)with fertilization at different stages in Spring were studied with the single-factor random block design. It was indicated that there were extrecmely significant difference in seed yield among the different treatments (P<0.01) and the seed yield for fertilizing ranked the highest with 715.2kg/hm 2 at green-turning stage or tiller-elongating staeg. Therefore, fertilization at green-turning staege or tiller elongating stage was the best way to increase seed yield of perennial ryegrass.更多还原