大豆大豆根部被淹,造成土壤氧气缺乏,阻碍植物根部的呼吸作用,从而使根的养分吸收、根的生长受到抑制;植株地上部淹水,则光合作用显著减弱或停止,有氧呼吸为无氧呼吸所代替,大豆植株贮藏的营养物质大量消耗,植株很快枯烂死亡。一样情况下,大豆水淹时间2~3昼夜,水退后尚能继续生长,水淹每增加一天,减产幅度在10~20%之间,当植株被淹3天以上,则大量死亡。抢排田间积水:对水淹时间不超过两周的地块,要 Soybean soybean roots flooded, resulting in a lack of oxygen in the soil, impede the respiration of plant roots, so that the roots of nutrient absorption, root growth was inhibited; plant aboveground flooding, the photosynthesis significantly weakened or stopped, aerobic respiration is no Oxygen breathing instead, a large number of nutrients stored in soy plants consumed, the plants died soon died. In the same situation, soybean flooding time of 2 to 3 days and nights, the water back to continue to grow after the flooding for each additional day, the rate of decrease in the range of 10 to 20%, when the plants flooded more than 3 days, a large number of deaths. Rush to drain the field water: the flooding time of no more than two weeks of land, to be