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A total of 53 weed species of 15 families were investigated in the melon field weed survey, among which Poaceae was the most species of weeds, accounting for 23%; Compositae was second, accounting for 19%; Amaranthaceae was the third, accounting for 13% . The main weed species include: Eleusine indica, Chloris barbata and Cyperus rotundus of Poaceae, Ixeris chinensis, Bidens pilosa and Sonchus oleraceus of Compositae, Amaranthus lividus and Alternanthera nodiflora of Amaranthaceae.
▲Fig.1. Distribution ratio of weeds and common weeds in melon fields