适宜黑土滩栽培的牧草品种筛选研究

Study on Screening of Forage Species Fittingly Cultivated in Black-Soil beach

为了确定三江源区黑土滩栽培的适宜牧草,自20世纪90年代末开始,在果洛藏族自治州的达日县和玛沁县引进50个牧草品种进行引种筛选试验。试验结果表明,外来草种在黑土滩上引种栽培很难成功,而青海草地早熟禾等6个乡土草种应作为当前黑土滩治理中大面积推广应用的首选草种;麦宾草等草种可作为黑土滩治理的后备草种,并提出了黑土滩人工草地建植的牧草混播组合。

In order to make certain fitting forage species cultivated in black-soil beach in the region of three rivers＇headwater,50 forage species were in troduced into Dari and Maqing county of Guoluo Tibetan autonomous prefecture and the screening test of 50 forage species was conducted.since late 90＇s of 20th century.The results showed that introducing exotic forage species in black-soil beach was not successful,but 6 native forage species including Poa.pratensis L.cv.Qinghai et al was species firstly chosen which has been spreaded and exploited for bringing black-soil beach under control.And then,6 species including E.Tangutorum et al should be standby forage species for tackling black-soil beach,and combination of mixed-sown for forage species has been also put froward.