草业科学2012，Vol.29Issue(8)：1278-1284,7.
行距与栽培年限对老芒麦鲜草及种子产量的影响
Influence of row spaces and planting years on yield of fresh grass and seeds of Elymus sibiricus
摘要
Abstract
In this study, influence of five row spaces （30, 45, 60, 75 and 90 cm） and 2 -- 5 cultural years on the characteristics of shoots, inflorescences, seed yield and grass yield of Elyrnus sibiricus were measured and analyzed by using a randomized block design. The results showed that row space, cultural year and their interaction all affected height and density of shoots, proportion of fertile tillers, spikelets/fertile tillers, florets/fertile tillers, potential seed yield, presentation seed yield and harvested seed yield signifi- cantly. The affected order from big to small was row space~interaction~cultural year. The row space of 30--45 cm was beneficial to fresh grass production, while the row space of 60 cm appropriated seed pro- duction. In the third year, the fresh grass yield was the highest with the values of 19 225.6 kg· ha-1 （30 cm） and 16 733.4 kg · ha-1 （45 cm） respectively. Yet seed yield was the highest in the row space of 60 cm with the value of 1 620.67 kg · ha-1. Therefore, forage production should be planted with the row space of 30--45 cm and seed production should be planted with the row space of 60 cm.关键词
老芒麦/行距/栽培年限/鲜草产量/种子产量Key words
Elymus sibiricus/row space/cultivation period/fresh grass yield/seed yield分类
农业科技引用本文复制引用
游明鸿,刘金平,白史且,李达旭,鄢家俊,张昌兵..行距与栽培年限对老芒麦鲜草及种子产量的影响[J].草业科学,2012,29(8):1278-1284,7.基金项目
国家牧草产业技术体系阿坝综合试验站和四川省草种质资源平台建设项目 （）
