摘要
采用田间试验,研究了3个不同移栽期和2个不同氮肥施用水平对烤烟农艺和经济性状的影响。结果表明,与不施氮肥相比,施用氮肥分别增加各生育期烤烟叶长、叶宽、茎围和叶面积指数9%~12%、12%~15%、8%~12%和30%~47%,烤烟中上等烟叶比例、产量和产值分别增加28%、23%和24%。与5月5日移栽相比,推迟移栽期至5月15~25日有利于增加烤烟各生育前期叶长、叶宽、茎围和烤烟叶面积指数等农艺性状以及烤烟中上等烟叶比例、均价、产量产值等经济性状,而且以5月15日移栽效果最佳。
Field experiments were carried out to study the effects of 3 transplanfin8 periods ＆ 2 N fertilizer levels on the agronomic ＆ econom- ic characters of flue-cured tobacco （FCT）. The results showed that compared with no application d N fertilizer, applying N fertilizer, the leaf length, leaf width, stem girth and leaf area index （LAI） of tobacco significantly increased by 9 % - 12 %, 12 % - 15 %, 8 % - 12 % and 30 % -47 %, respectively, and also the proportion of middle and superior grade, yield and market value of tobacco leaves by 28 %, 23 % and 24 %, respectively. Compared with the transplanting period of 5th May, postponing the t^ansplanting period to 15th -25th May had advantage of increasing agronomic characters, such as the leaf length and width, stem girth and/A/and also some of the economic char- acters, such as the middle and superior grade, average price, yield and market value of tobacco plants, and the effect of transphmting period 15＇h May was the best.
出处
《西南农业学报》
CSCD
北大核心
2013年第4期1557-1560,共4页
Southwest China Journal of Agricultural Sciences
基金
公益性行业(农业)科研专项(201103007)
湖北省烟草专卖局重大攻关项目(20070301
027Y2011-055)
关键词
烤烟
移栽期
氮肥
农艺和经济性状
Flue-cm~ tobacco
Transplanting period
N fer^lizer
Agronomic and economic character
