钾肥追施时期对烤烟生长发育及产质量的影响  

The Effects of Potassium Fertilizer Topdressing Date on the Growth,Development,Yield and Quality of Flue-cured Tobacco

作　　者：刘光辉 刘雪梅 王海军 王力伟 张震 刘俊军 李素云 刘京 欧阳习田 肖波 李迪秦[1,3] 

机构地区：[1]中国烟草中南农业试验站,湖南长沙410128 [2]湖南省烟草公司邵阳市公司,邵阳422000 [3]湖南农业大学农学院,长沙410128

出　　处：《作物研究》2016年第3期295-298,共4页Crop Research

基　　金：湖南省烟草公司邵阳市公司项目(sy13-15ky03)

摘　　要：为探讨钾肥不同追施时期对烤烟生长发育及产质量的影响,研究了钾肥三种不同的追施时期下,烤烟生长发育及产质量的变化。结果表明:移栽后35~50 d追施钾肥,有利于烤烟生长发育和产量的提高及品质的改善;且以移栽后50 d的施用效果最好,打顶后7 d,烤烟的最大叶SPAD值和叶面积最高,根系体积最大,产量达到2135.0~2415.0 kg/hm^2,产值达53 588.5~61 824.0元/hm^2。Experiment of three potassium topdressing date was carried out to investigate the effect of different potassium fertilizer topdressing date on growth,development,yield and quality of flue-cured tobacco. The results showed that topdressing potassium fertilizer after 35-50 d transplanted accelerates conductively the flue-cured tobacco growth and development,increases its yield and improve its quality. Its effect is the best with topdressing potassium fertilizer after 50 d transplanted for the highest SPAD and leaves areas,yield of 2135. 0-2415. 0 kg / hm^2 and out-put value of 53 588. 5-61 824. 0 yuan / hm^2.

关 键 词：烤烟 钾肥 追施时期 产质量 

分 类 号：S572.062[农业科学—烟草工业]