研究结果表明，北京地区春季播种的匍匐剪股颖、草地早熟禾和高羊茅三种冷季型草坪草，播后施氮肥并防除杂草，较单独施氮肥或单独防除杂草明显地提高了苗期草坪盖度，增加了草坪草种苗的地下和地上生物量，缩短了成坪所用时间；除草地早熟禾单独施氮肥、单独防除杂草和对照处理外，三种草坪草的各处理均在进入炎热的夏季前成坪；防除杂草可明显地提高三种草坪草的分蘖能力，增加草坪密度；草地早熟禾较匍匐剪股颖和高羊茅对杂草更为敏感，草地早熟禾单独防除杂草较单独施氮肥处理能获得较高的种苗地下、地上生物量和较高的盖度 The results showed that three cold-season turfgrasses planted in spring in Beijing, such as Crested Prurifordum, Poa pratensis and Festuca arundinacea, applied nitrogen fertilizer and control weeds after sowing, which was significantly higher than that of nitrogen fertilizer alone or weed control alone The coverage of the turfgrass at seedling stage increased the subsurface and aboveground biomass of the turfgrass seedlings and shortened the time for the turfgrass to be planted. Apart from the application of nitrogen fertilizer to the turfgrass alone and the control of weeds and controls alone, The treatments were all completed before entering the hot summer; weed control can obviously improve the tillering ability of three kinds of turfgrass and increase the density of turfgrass; The turfgrass is more sensitive to weeds than the creeping bentgrass and tall fescue, Compared with the single nitrogen fertilizer application, weeds of Poa pratensis alone can get higher underground and aboveground biomass and higher cover