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硒、硫施用对烟草中磷的吸收和积累的影响
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摘要:
试验在盆栽条件下进行,研究表明,硒、硫对烟草中磷吸收和积累的影响随烟草生育期及不同生长器官而异,前期烟草地上部分磷的含量随施硒和施硫的增加而增多,硒、硫对磷含量表现出协同作用,成熟烟叶中磷含量在不旆硫时随施硒的增加而增多;施硫时,硒则降低烟叶的磷含量,硒、硫对烟叶中磷的积累表现出颉颃作用。前期烟草中磷和硫及硒的积累量相互间存在显著正相关性,成熟烟叶中硫与烟茎的磷含量呈显著的负相关。
关键词:  硒 硫 烟草 红壤 磷吸收 磷积累 施肥
DOI:
修订日期:2000-09-25
基金项目:
Effects of Se and S Application on the Uptake and Accumulation of P in Tobacco
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Abstract:
The research was carried out in pot experiment and the results showed that the influence of selenium and sulfur on the uptake and accumulation of P changed with the growth period and organs of tobacco. P contents in leaves and stalk at early stage increased with the increase of selenium and sulfur addition.There was synergistic interaction between selenium and sulfur on P contents.In the absence of added SO 4 2 ,phosphorus contents of mature tobacco leaves were increased with increase of SeO 3 2 , while in the presence of added SO 4 2 ,P contents in tobacco leaves were decreased with the additions of SeO 3 2 .There were antagonistic interaction between SeO 3 2 and SO 4 2 in the distribution of P in tobacco leaves.Significantly positive correlations between the accumulation of P,S and Se in tobacco,and negative correlation between S content in the leaves and P content in stalk at mature stage were found.
Key words:  selenium,sulfur,phosphorus,tobacco,red soil

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