以3年生蓝莓为试材,在行间种植不同密度的白三叶,研究了行间生草覆盖对蓝莓园杂草的生物防除效果。结果表明:在蓝莓园行间播种白三叶草,可起到有效控制杂草的作用;蓝莓园杂草有16科、39种,多发、重发杂草有打碗花、空心莲子草、野老鹳草、马唐等4种。覆盖白三叶对杂草的防除效果达80.0%以上,其中,行间白三叶播种密度以10g·m-2防效最佳。 Taking 3-year-old blueberry as test material, white clover with different densities was planted in row to study the biological control effect of grass covering on blue weed weeds. The results showed that the white clover planted in the blueberry garden could control the weeds effectively. There were 16 families and 39 species of weeds in the blueberry garden, with many recurring weeds such as bowl flower, Alternanthera philoxeroides, Grass, Crab and other 4 species. The coverage of white clover on weeds control effect of more than 80.0%, of which, white clover planting density to 10g · m-2 best control effect.