| 1. | The distribution and harm of species of dominant weeds of lawn vary with different area , and the most harmful weeds belong 8 families , which were poaceae , asteraceae , cyperaceae , amaranthaceae , euphorbiaceae , polygonaceae , fabaceae and caryophyllaceae , about accounted for from sixty percent to seventy percent in all weeds in lawn
摘要不同地区草坪优势杂草的种类不尽相同，禾本科、菊科、莎草科、苋科、大戟科、蓼科、豆科和石竹科等8个科的杂草种类和发生数量最多，约占杂草总数的60 % ~ 70 % 。 |
