草坪是目前绿化中发展最快,栽培面积最大的绿化项目。由于国外的早熟禾、结缕草等草类颜色较绿,叶枯黄得稍晚,观赏期相对较长,更受推崇。所以,引进洋草的趋势也愈演愈烈。但洋草虽美观、观赏期稍长,但却不抗病、抗旱性极差。经过几年的栽培,我们把洋草与本地自然生草进行了对比,发现洋草由于抗病性较差,经常出现像影碟大小的圆形死亡区,而且有面积逐年扩大的趋势。另一点就是其抗旱性极差。高温时,两三天不浇就可旱死。一般情况下也得一星期 Lawn is currently the fastest growing greening, planting the largest greening project. Due to foreign bluegrass, Zoysia grass and other grass-like color than green, yellowish leaf late, ornamental period is relatively long, more respected. Therefore, the trend of introducing foreign grass also intensified. However, although the beautiful grass, ornamental slightly longer, but not disease resistance, poor drought resistance. After several years of cultivation, we compared the natural grass with the native grass and found that the grass often appears like a circular disk of death area due to its poor disease resistance, and the area has been expanding year by year. Another point is its poor drought resistance. When high temperature, two or three days can be irrigated dry. Under normal circumstances have a week