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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
The results showed that applying sulfur could increase the sulfur content of tobacco and the content of sulfur in tobacco leaves was higher than that of the roots. The effect of selenium on the content of sulfur in tobacco was insignificant, but the effect on sulfur accumulation was obvious. When red selenium was low (Se <3.71 μg / g), the accumulation of tobacco increased, while that of high selenium (Se> 3.71 μg / g) There is a downward trend; while on yellow cinnamon soil selenium increases with the decline