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1995～ 1999年采用系统监测与不同生态类型多点调查相结合的方法 ,查明在六安地区油菜田常见杂草有 5 8种 ,不同区域主要杂草群落组合共有 36种 ;田间杂草有 2个发草盛期分别在每年的 10月中旬至 11月下旬及翌年的 2月中旬至 3月中旬 ,秋冬出草量占总草量的 70 %以上 ,冬前平均杂草密度 413～ 82 0株 /m2。同时探讨了现阶段油菜田杂草草相演变及栽培因素与草情动态关系
From 1995 to 1999, by means of a combination of systematic monitoring and multi-point investigation of different ecological types, it was found that there were 58 common weeds in rape field in Lu’an and 36 main weed community combinations in different areas. The two grasses peaked from mid-October to late November and mid-February to mid-March each year, respectively, with more than 70% of the total grasses in autumn and winter, and an average of 413 to 82 0 strains / m2. At the same time, we discussed the relationship between the evolution of weed and herbaceous plants and the relationship between their cultivation factors and pastures in rape field at the present stage