草坪型多年生黑麦草种子生产性能的研究

采用裂区试验设计，研究了施肥量和播利量及其组合对草坪型多年生黑麦草种子生产性能的影响。结果表明，施肥量处理间以Ｎ·Ｐ·Ｋ比例为８０：３０：３０的种子产量最高；播种量对多年生黑麦草结实性能的种子产量的影响差异不显，因此，在多年生黑麦草种子生产中采用低播种量较好，对种子生产性能而言，施肥量效应与播种量效应间彼此独立。

Studies on seed productivity of turf type perennial ryegrass

The effects of fertilization and sowing rate on the seed productivity of turf type perennial ryegrass (Lolium perenne) were studied using the split plot experiment design. The maximum seed yield was shown when the ratio of N, P, K fertilizers applied was 80, 30, 30 kg/hm 2. There were no significant effects on seed productivity among sowing rates. So that the low sowing rate (4.5 kg/hm 2) would be adopted in perennial ryegrass seed production. There was no interaction of fertilization and sowing rate on seed productivity.