杂草对水稻生产的危害很大,不仅与水稻争夺养分、阳光、降低产量和品质,又增加单位面积用工量,增加生产成本。采用化学药剂除草,不仅可减少除草用工,降低生产成本,而且能大面积及时消除杂草危害,实现增产增收。 Weeds are very harmful to rice production, not only compete with rice for nutrients and sunshine, reduce production and quality, but also increase labor per unit area and increase production costs. The use of chemical weeding, not only can reduce weeding workers, reduce production costs, but also large areas of timely elimination of weed hazards, to increase production and income.