【摘要】 对西安地区冷季型草坪杂草的种类、发生时期进行普查 ,对杂草的发生与季节性演替规律进行了讨论与分析 ,发现阔叶杂草优势种有酢酱草、蛇莓、紫菀、深绿蒿等 ,单子叶杂草优势种有狗牙根、马唐、莎草等 ,并提出了以多度等级确定危害成度及防治建议。更多还原

【Abstract】 Weed species and their occurring time in the cool seasonal turfgrass in Xi’an was spot checked. The pattern of the occurrence and succession of weed was analyzed. The results showed that the dominant weed species of dicotyledon were Oxalix comiculata, Duchesnea indica, Aster tataricus , and Artemisia atrovivens ,while monocotyledon were Cynodon dactylon, Digitaria sanguinalis , and Cyperus rotundus . Using abundance degree to define the extent of the weed damage was proposed and the method of prevention and control of weed was also suggested.更多还原