一九九○年六月下旬丰台体育中心足球场地草坪有部分发黄现象,为使十一届亚运会顺利召开,对草发黄现象进行分析后,并采取了有效的防治措施。一、在植物生长期,由于多种原因造成草发黄现象分析如下:1、丰体中心足球场地,在施工时,从别处运进许多生土铺垫,生土无养料,土壤结构 In late June 1990 Fengtai Sports Center football field lawn part of the yellow phenomenon, in order to successfully convene the 11th Asian Games, the grass yellow phenomenon analysis, and to take effective control measures. First, the plant growth period, due to a variety of reasons yellow grass phenomenon is as follows: 1, abundance of the center of the football field, during construction, transported from many other raw soil paving, raw soil no nutrients, soil structure