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狗牙根(Cynodon dactylon)又名行义芝、绊根草(上海)、爬根草(南京)、百慕大,禾本科狗牙根属,广泛分布于温热带地区。我国黄河流域以南各地均有野生种。新疆的伊犁、喀什、和田亦有野生。笔者所在的涪陵市属于长江以南,夏季炎热、气温高,不适合单一冷季型草坪草的生长,所建草坪几科全是暖季型草坪。其中,尤以结缕草和狗牙根居多。以上两种草坪由于绿期较短,在秋、冬季,有长达4个月以上的枯黄期。为了解决这一人们普遍预期草坪能够达到四季常绿这一理想结果,我们从1999年开始,在狗牙根草坪上补播部分黑麦草的方法,取得了较好的效果,基本上达到了草坪四季常绿的目的。
Cynodon dactylon, also known as Yoshitaka, Tripodgrass (Shanghai), Reptilia (Nanjing), Bermuda, and Bermudagrass are widely distributed in the tropics. Wild species are found all over the south of China’s Yellow River basin. Xinjiang Ili, Kashi, Wada also have wild. Fuling City, where the author belongs to the south of the Yangtze River, hot in summer, high temperatures, not suitable for a single cold-season turf grass growth, the lawn built by the lawn are all warm-season turf. Among them, especially Zoysia and Bermudagrass mostly. The two lawns as the green is shorter, in the autumn and winter, there are up to 4 months of browning. In order to solve this ideal expectation that lawns can achieve evergreen perennials, we started to replant some of the ryegrass on bermudagrass lawns starting from 1999 and achieved good results, basically reaching the four seasons Evergreen purpose.