高海拔地区移栽期对烤烟生长和产量的影响

Effects of Different Transplanting Date on Flue-cured Tobacco Growth and Yield in High Altitude Aera

为了充分发挥井窖式栽培技术在利川烟区的作用,通过田间试验,研究了高山（海拔1 200 m以上）和二高山（海拔800~1 200 m）不同井窖式移栽时期（烟苗不同真叶数）对烤烟生长和烟叶产量的影响。结果表明,在利川高山烟区,随着移栽时期的延长,烟株的农艺性状和烤烟烟叶产量均呈现出先增加后减少的变化趋势,5月15日移栽效果较好,较其他移栽时期增产23.65%~32.33%。而在利川二高山烟区,随着移栽时期的延长,烟株的农艺性状和烤烟烟叶产量略有增加,4月25日至5月10期间移栽效果相当,但是5月5日后移栽能够增加上等烟率。

In order to exerting the well cellar cultivation technology in Lichuan tobacco growing areas, the field experiment was carried out to study the effects of different transplanting date on flue-cured tobacco growth and yield on high mountain（altitude above 1 200 m） and middle high mountain（altitude 800~1 200 m）. The results showed that, in high mountain tobacco area of Lichuan, the agronomic traits and yield of flue-cured tobacco presented the first increasing and then decreasing as the transplanting period prolong, the best transplanting period was May 15, whose yield increased by 23.65%~32.33% comparing to other transplanting period. However, in middle high mountain tobacco area of Lichuan, the agronomic traits and yield of flue-cured tobacco increased a little as the agronomic traits and yield of flue-cured tobacco, the better effect was obtained from April 25 to May 10, but only when the transplanting period delayed to May 5 or prolonged go on, the superior tobacco ratio increased.