江西省花生田杂草调查初报

Preliminary Investigation on Weeds in Peanut Fields in Jiangxi Province

采用倒置"W"九点取样法对江西省花生主产区杂草进行调查。结果表明,江西省花生田杂草共有35科96种,分布普遍且危害严重的主要是单子叶、一年生杂草。其中,种群最大的为禾本科杂草,优势杂草种类有马唐、双穗雀稗、香附子等15种,马唐的密度和鲜质量显著大于其它杂草,是江西省花生田最主要的杂草。

An investigation on weeds in main peanut producing areas of Jiangxi Province was carried out by using the inverted＂W＂nine-point sampling method. Results showed that there were 96 weed species in 35 families, of which monocotyledonous and annual weeds were widely distributed with serious harm. Weeds with the largest population were gramineae, and weed species with advantages included such 15 kinds as Digitaria sanguinalis（Linn.） Scop, Paspalum distichum L., Cyperus rotundus L., and so on. The density and fresh weight of Digitaria sanguinalis（Linn.） Scop were significantly higher than that of other weeds, which showed it was the main weed in peanut fields in Jiangxi Province.