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运用倒置“W”9点取样法对赣北棉区棉田杂草调查,结果表明该地区棉田杂草有14科35种,马唐、香附子和牛筋草为棉田杂草的优势种群。
The investigation of weeds in the cotton fields of the northwestern Jiangxi Province using the inverted “W” 9-point sampling method showed that there were 14 families and 35 species of weeds in the cotton fields in the region. Crabgrass, Cyperus rotundus and weed tendon were the dominant populations of weeds in cotton fields.