论文部分内容阅读
我国高寒地区不少地方的人工草地常因杂草为害影响到饲草饲料的收成和质量,进而影响到家畜的越冬补饲。有关高寒地区人工草地田间杂草的防除问题,研究得很少。为此,我们在皇城绵羊育种试验场的人工草地上进行了杂草调查,并用2.4-D进行了灭草试验。一、试验地杂草种类根据调查,皇城地区人工草地的杂草主要有禾本科的野燕麦(Avena fatua),唇形科的萼果香薷(Elsholtzia calycocar pa),茜草科的猪殃殃(Galium aparine),藜科的灰绿藜(Chenopodium glaucum),菊科的
Artificial grassland in many parts of China’s alpine region often affects the harvest and quality of fodder fodder due to weed damage, which in turn affects the winter feeding of livestock. Little research has been done on the prevention and control of weeds in artificial grassland in the alpine region. To this end, we carried out a weed survey on artificial grassland in the imperial sheep breeding field and conducted a weed control experiment with 2.4-D. First, the weed species tested According to the survey, the weeds in the Imperial City artificial grassland are mainly grassland wild oats (Avena fatua), Labiatae calyx fragrant (Elsholtzia calycocarpa), Rubiaceae Galium aparine ( Galium aparine, Chenopodium glaucum from Chenopodiaceae, Asteraceae