期刊论文

中文

作物研究

1001-5280

2013

6

614-617

10.3969/j.issn.1001-5280.2013.06.21

国家烟草专卖局重大专项（ts-01） 湖南省科技厅项目（2013NK3073） 湖南省烟草公司科技项目（11-14Aa01）.

本校为第一机构

以烤烟品种K326为材料,研究了氮肥前移和源库修饰（打顶、打叶）处理对烤烟大田各生育期农艺性状与烤后烟叶叶片厚度、经济性状和内在化学成分的影响。结果表明:氮肥前移处理烤烟在生育前期生长较为旺盛,后期以源库修饰处理长势较好,整个生长发育过程中以移栽后25 d内完成氮素追肥并进行源库修饰整体表现最佳;氮肥前移对叶片厚度影响不大,源库修饰使中上部叶片干物质积累量增加;同时采取氮肥前移和库源修饰两种处理措施,其产量、产值分别为2 356.28 kg/hm2和47 125.60元/hm2,烟碱和总氮含量最为适宜,内在化学成分协调性最好。综合考虑,移栽后25 d内全部完成氮素追肥并进行源库修饰的处理措施最适...

Taking K326 as test variety, the effects of nitrogen fertilizer topdressing earlier and source-sink modification on agronomic traits, leaf thickness, economic characters and the intrinsic chemical composition were studied. The results showed that the treatment with nitrogen topdressing earlier was benefit for fast growth at early stage, and the treatment with source-sink modification （ leaf removal） grew well at the later stage, However, treatment with both topdressing earlier and source-sink modification appeared the best overall performance...