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前言老芒麦(Elymus sibiricus)在我国分布于西北、华北、东北以及西藏高原,是多年生野生优良牧草之一。近年来经引种驯化已成为重要的栽培牧草,在青海、甘肃、内蒙古、吉林等省、区广为栽培。实践证明,它是建立人工草地,天然草地补播和林草间种的理想草种,很有发展前途。老芒麦在黑龙江省具有适应性强,产草量高,品质好,结实率高,容易栽培等优点。但它生长快,枯萎早,容易老化,不适时刈割会降低饲用价值。为了查明老芒麦的不同生育期及其产量和品
Foreword Elymus sibiricus is distributed in the northwest, north China, northeast and Tibet plateau in our country. It is one of the perennial wild forage. In recent years, the introduction and domestication has become an important cultivation forage, widely cultivated in Qinghai, Gansu, Inner Mongolia, Jilin and other provinces and regions. Practice has proved that it is an ideal grass species for establishing artificial grassland, natural grass sowing and planting grassland and grassland and has great development prospects. Siberged barley has the advantages of strong adaptability, high yield, good quality, high seed setting rate and easy cultivation in Heilongjiang Province. But it grows fast, wilting early, easy to aging, cutting will reduce the value of feed if not appropriate. In order to identify the different growth stages of Somlei and its yield and quality