【摘要】 通过盆栽试验，研究了土施硫磺对甘蓝叶球ＮＯ３－Ｎ含量的影响。结果表明，土施硫磺能有效控制甘蓝叶球ＮＯ３－Ｎ污染。随着硫磺用量增加，甘蓝叶球ＮＯ３－Ｎ含量显著下降。两者呈极显著的直线负相关，相关系数（ｒ）为－０．９８２。施硫对甘蓝叶球ＮＯ３－Ｎ含量的降低作用主要归因于氮素同化作用的增强、吸收作用的减弱和叶球生长量的增大。更多还原

【Abstract】 ffect of sulphur application on NO3-N content of cabbage head was conducted in pot experiment.The result indicates that the NO3-N pollution can be controlled with application of sulphur.The NO3-N content in cabbage head decreases significantly with amount increase of sulphur application.There is a negative relationship between NO3-N content in cabbage head and amount of sulphur application with r=0.982. The role of sulphur application in decreasing NO3-N content is attributed to promoting the Nitrogen assimilation,decreasing NO3-N uptake and enhancing cabbage growth.更多还原