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为了给青海省高寒人工草地建设和生态治理工程提供基础数据,试验对青海省牧草良种繁殖场主栽的8种多年生矮禾草进行了连续4年的观测,对牧草产量、花期营养成分、种子产量和牧草生育期等主要生产经济性状进行比较分析。结果表明:供试的8份多年生矮禾草对本地区生态气候环境具有极强的适应性,在产草量及产籽量等经济性状方面差异很大,其中扁茎早熟禾作为唯一的根茎性牧草,适应性和各项经济性状最高,其次为羊茅属的3个品种和冷地早熟禾。
In order to provide the basic data for the alpine artificial grassland construction and ecological management in Qinghai Province, 8 perennial dwarf grass cultivated in the herbage breeding herd in Qinghai Province were observed for 4 years. The effects of forage yield, flowering nutrient composition, Yield and forage growth period and other major productive economic traits for comparative analysis. The results showed that the 8 perennial dwarf grasses were highly adaptable to the ecoclimatic environment in the region, with great differences in economic traits such as grass yield and seed yield. Poa pratensis, as the only rhizome Forage, adaptability and the highest economic traits, followed by the three varieties of Festuca and Poa pratensis.