适期早栽和追肥前移对烤烟产质量的影响

为研究移栽时期和追肥时期对烤烟产质量的影响,以移栽时期、追肥时期二因素进行裂区试验,研究了不同处理对烤烟生长发育、烤后烟叶内在化学成分协调性、烤后烟叶物理特性和经济性状等方面的影响。结果表明:随着移栽期的推迟,大田生育期逐渐缩短。随着追肥时间的提前,各处理生育期相应缩短;适期早栽和追肥前移对烤烟品质的提高有积极影响,烟叶的物理性状以提前10 d膜下井窖式深栽+移栽之后30 d内完成氮素追肥和提前10 d膜下井窖式深栽+移栽之后25 d内完成氮素追肥最适宜;各处理产量差异不大,产值、均价、上等烟和中上等烟比例均随着移栽时期和追肥时期的提前而增大,提前10 d膜下井窖式深栽+移栽之后30 d内完成氮素追肥的栽培组合最适宜当地的烤烟生产。

Effect of Proper Early Planting and Topdressing in Advance on Yield and Quality of

In order to study the effect of transplanting period and topdressing stage on yield and quality of flue-cured tobacco, the two factors of transplanting date, dressing period carried on the split plot experiment, the effects of different treatments on the growth and development of flue-cured tobacco, the coordination of chemical components in flue-cured tobacco leaf, and the physical and economic characters of flue-cured tobacco were studied. The results showed that the growth period was shortened with the delay of transplanting date. Topdressing earlier, the growth and development stages shorten accordingly; proper early planting and topdressing in advance had positive effect on the improvement of the quality of flue-cured tobacco, the optimum physical properties of tobacco leaf under the pattern of transplanting deeply by well cellar type 10 days in advance and completed nitrogen fertilizer topdressing within 30 days after transplanting, and transplanting deeply by well cellar type 10 days in advance and completed nitrogen fertilizer topdressing within 25 days after transplanting; the yield difference was not obvious among the treatments, the output value, average price, proportion of superior tobacco leaves and secondary superior tobacco leaves were increased with the advance of transplanting time and fertilizer topdressing time, the pattern of transplanting deeply by well cellar type 10 days in advance and completed nitrogen fertilizer topdressing within 30 days after transplanting was the most suitable cultivation combination for local flue-cured tobacco production.