土施硫磺对甘蓝叶球NO_3-N含量的影响  

Effect of Sulphur application on NO3-N Content in Cabbage Head

作　　者：温月香[1] 胡全才[1] 

机构地区：[1]山西省农业科学院土壤肥料研究所

出　　处：《农业环境与发展》1999年第2期36-38,共3页Agro-Environment and Development

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。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.

关 键 词：土施硫磺 甘蓝叶球 含量 氮 氮氧化物 

分 类 号：X592.031[环境科学与工程—环境工程]