西藏林芝地区草地早熟禾适播期选择性研究

Research on Selecting the Adapted Seeding Time of Poa pratensis cv. America in Tibet(Linzhi)

20 0 0年 5月～ 2 0 0 1年 6月 ,在林芝地区不同季节播种草地早熟禾 (Poapratensiscv .America)的试验表明 :在林芝地区草地早熟禾草坪草种的最佳适播期为 5月底～ 7月底 ;为保证早春园林景观需要 ,早熟禾的可播期最早可提前到 4月上旬 ;草地早熟禾的可最晚可推迟到 8月下旬 。

By experiments sowing America blue-glass(one species of Poa pratensis )from May 2000 to June 2001 in Linzhi of Tibet, the results show that the adapted seeding time of America blue-glass in Tibet(Linzhi)is from the last ten-day period of May to the last ten-day period of July; to guarantee garden landscape in the early spring, the seeding time of America blue-glass in Tibet(Linzhi)may be advanced to the first ten-day period of April and that may be postponed to the last ten-day period of August, however, the situation of developing lawn is not good.