【摘要】 以第四纪红色粘土为母质的红壤和下蜀黄土为母质的黄褐土为供试土壤 ,进行盆栽试验 .结果表明 ,施硫可提高烟草各部位硫含量 ,烟叶硫含量高于根部 .施硒对烟草中硫含量影响不明显 ,但对硫积累量的影响比较明显 .红壤施低硒 (Se<3.71 μg/ g)时烟草地上部积累增加 ,高硒 (Se >3.71 μg/ g)时有降低趋势 ;黄褐土上则随施硒增加而下降更多还原

【Abstract】 Pot experiments were conducted on red soils and yellow brown soils. The results showed that the application of S increased the contents of S in all parts of the tobacco plants, the contents being higher in leaves than those in roots. The utilization of Se had no significant effect on the contents of S in the tobacco plants, however, it could increase the accumulation of S. Low input of Se increased the biomass production of above ground parts of the tobacco plants on red soils, while high input showed an opposite. However, the biomass production was decreasing with increasing application of Se in yellow brown soils.更多还原