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The weed emergence in vegetable fields from 1971 to 1980 was investigated in order to make its proper control. (1) Number of weeds emerged during cropping period was lower in straw or black vinyl film mulch culture system than in clean culture system. The importance of removal of remaining weeds by hand could be emphasized on weed control. (2) On the field, 7 families and 11 species of weeds were observed. The most dominant weeds were limited to 4 species: Galinsoga ciliata (RAF.) BLAKE, Amaranthus lividus L., Digitaria ciliaris (RETZ.) KOELER, Eleusine indica (L.) GAERTN.