北京地区在70年代后,草坪才被做为街道绿化景观的底色而迅速发展起来。到了80年代,开始大面积种植冷季型草,其中以草地早熟禾和剪股颖应用较广泛。冷季型草具有返青早、枯黄晚、绿色期长,播种繁殖方便易行,能够快速建植等特点。所以,冷季型草在我国北方等省市绿化中占有较大比重。但是,冷季型草喜凉冷气候。需要大水大肥,在每年5月至10月中旬为快速生长期,如果修 Beijing area In the 1970s, the lawn was quickly developed as the background color of the street green landscape. By the 1980s, large-scale planting of cold-season grass began, of which the grassland bluegrass and cutting Yingying more widely used. Cold-season grass with green early return, yellow late, green long, sowing and breeding easy and easy to quickly build and so on. Therefore, the cold-season grass in northern China and other provinces occupy a larger proportion of green. However, the cold season grass like cold weather. Need big water big fat, every year from May to mid-October for the rapid growth period, if the repair