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今年3月初,我们收到了美方赠送的黑麦草(Lolium sp.)种籽,据介绍这是建造公园草坪的优良草种之一。由于草籽数量有限,为确保引种试播成功,我们根据引种地与原产地的地理纬度和气候情况的明显差异,拟定了较周密的试播方案。从3月份开始,我们按不同播种量(5克/平方米、7克/平方米和10克/平方米)先后分五批播种。并设置了育秧与直播,条播与撒播,施基肥与不施基肥,以农家肥作基肥与以
In early March this year, we received the seeds of the Lolium sp. Presented by the United States. According to reports, it is one of the finest grass species used to build parks and lawns. Due to the limited number of grass seeds, in order to ensure the successful introduction of the pilot program, we formulated a more elaborate pilot program based on the obvious differences between the geographical latitude of the introduction and the place of origin and the climatic conditions. From March, we sowed five batches of seeds at different sowing rates (5 g / m2, 7 g / m2 and 10 g / m2). And set up seedling and live broadcast, broadcast and broadcast sowing, non-application of base fertilizer and man-made fertilizer to base fertilizer with