覆盖作物白三叶对蓝莓园杂草的生物防除效果

Biological Control of Cover Crops White Clover Against Weeds in Blueberry Orchard

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。

Three-year-old blueberry plants were used as test materials to study the biological control of inter-row planting white clover against weeds in blueberry orchard.The results showed that inter-row planting white clover in blueberry orchard could control the weeds effectively,there were 39 species weeds of 16 families in blueberry orchard.There were four kinds of frequently and seriously occurring weeds：Calystegia hederacea Wall,Alternanthera philoxeroides（Mart.）Griseb,Geranium carolinianum Linn.,Digitaria sanguinalis（L.）Scop.The effect of inter-row planting white clover against weeds was up to 80.0%,and the density of 10g·m-2 was the best.