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为了处理不适用烟叶,提高烤烟质量,以云烟87为试验材料,通过2年的田间试验研究了不同时间处理上部不适用烟叶对烤烟生长、产质量和品质的影响。结果表明,与正常留叶(16~18片叶)(对照)相比,打顶后进行不适用烟叶处理不利于上部烟叶的伸展,但对下部烟叶和中部烟叶的影响较小。打顶后进行不适用烟叶处理,烟叶产量比正常留叶降低了6.14%~13.17%,但是增加了上中等烟叶比例。打顶后30 d进行上部不适用烟叶处理的产值最高,2年的产值分别较正常留叶增加了11.40%和4.24%。综合看来,在当地生产条件下,打顶后30 d进行上部不适用烟叶处理能够获得较好的产质量和化学品质。
In order to deal with the non-applicable leaf tobacco and improve the quality of flue-cured tobacco, the effects of different treatment time on the growth, yield, quality and quality of flue-cured tobacco were studied in a field trial of Yunyan 87 for two years. The results showed that the unsuitable leaf application after topping did not affect the extension of the upper leaf, but had less effect on the lower leaf and middle leaf than the normal leaves (16 ~ 18 leaves) (control). Tobacco leaves were not suitable for tobacco processing after topping, yield of tobacco decreased by 6.14% ~ 13.17% than that of normal leaves, but the proportion of upper middle leaves was increased. Top 30 days after topping the top not applicable tobacco leaves the highest output value, 2 years of output value than the normal leave leaves increased by 11.40% and 4.24%. Taken together, under the local production conditions, 30 days after topping top not applicable tobacco processing can get better production quality and chemical quality.