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中文摘要：
为探明临沧双江高、中海拔地区烤烟生产最佳追肥方案,采用田间小区试验,研究了不同追肥次数、时间和追肥比例对高、中海拔地区烤烟农艺性状、经济性状、化学成分和感官质量的影响。结果表明,2次追肥,追肥结束期早（栽后15 d）有利于烟株生长前期早生快发,追肥结束期晚（栽后25 d）或增加追肥次数能提高烟叶上等烟比例、产量、产值和烟叶抽吸品质。Ta3处理,即2次追肥,分别在移栽后7 d,移栽后25 d施用,追肥比例为3∶7,为临沧双江高海拔地区最佳追肥方案;Tb4处理,即3次追肥,分别在移栽后7 d,移栽后15 d,揭膜当天施用,追肥比例为2∶6∶2,为临沧双江中海拔地区最佳追肥方案。
英文摘要：
A field experiment was carried out to study the influence of different top dressing frequency, time and the top dressing proportion on agronomic characters, economical characters, conventional chemical composition and sensory quality of tobacco at high and middle altitude areas in Shuangjiang county of Lincang. The results showed that top dressing for two times were favorable to exuberant growth of flue-cured tobacco in the early stage when the top dressing ending time was early （15 days after transplant）. The high grade cured leaves ratio, the average price, the value of cured leaves and sensory quality of tobacco were heightened when the top dressing ending time was late （25 days after transplant） or top dressing frequency was added. Top dressing for two times （the first time in 7 days after transplant, the second time in 25 days after transplant） and the ratio of fertilizer in two top dressing at 3 ： 7 were commended in high altitude region of Shuangjiang. Top dressing for three times （the first time in 7 days after transplant, the second time in 15 days after transplant, the third time in the time of plastic film removing） and the ratio of fertilizer in three top dressing at 2 ： 6 ：2 were commended in middle altitude region of Shuangjiang. Key words：
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