| 吴正肖,张崇玉,高美玲,冯龙.水氮管理及打顶时间对烤烟品质及产值产量的影响[J].干旱地区农业研究,2017,35(5):189~194 |
| 水氮管理及打顶时间对烤烟品质及产值产量的影响 |
| Effects of field capacity, nitrogen and topping time coupling on the quality, yield and production of flue-cured tobacco |
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| DOI：10.7606/j.issn.1000-7601.2017.05.28 |
| 中文关键词: 水氮配合打顶 烤烟 化学成分 品质 产值 产量 |
| 英文关键词:coupling of field capacity nitrogen and topping time flue-cured tobacco the chemical composition quality yield production |
| 基金项目:贵州地区烟草重大项目“红花大金元配套技术研究及推广应用”(贵毕烟草特重2008-01-01) |
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| 中文摘要: |
| 为探究水氮打顶配合对烤烟化学品质及产值产量的影响，以烤烟红花大金元为研究对象，通过设置不同的土壤田间持水量、施氮量和打顶时间采取完全随机试验设计方案进行盆栽试验。结果表明：(1) 不同田间持水量、施氮量和打顶时间配合对烤烟化学品质影响显著；当土壤田间持水量为65%、施氮量为5 kg·666.7 m-2与烤烟打顶时间为初花后7天时，各烟叶化学成分综合评分均达到最高值，上部烟叶的可用性增加，对改善烟叶化学成分的协调性具有显著效果；(2) 水氮打顶配合条件下，可以实现最优的产量配合处理为A2B3C1，产量达到145.51 kg·666.7 m-2；最优的产值配合处理为A2B2C2，产值为1 924.95 元·666.7 m-2，其中水氮配合对烟叶的产量产生极显著性影响，不同土壤田间持水量、施氮量和打顶时间的配合对烤烟产值具有显著的影响；产值最大时烟叶化学成分协调性综合评分最高，印证了烟草品质与产值的关系。因此，适宜土壤田间持水量、施氮量和适时的打顶时间配合，将改善烟叶的化学成分，提高烟叶的品质，增大烤烟产值。 |
| 英文摘要: |
| To explore the impact of field capacity, nitrogen and topping time coupling on quality, yield and production of flue-cured tobacco, a pot experiment was conducted with a completely randomized design, setting different field capacity (A1, A2, A3), nitrogen rates (B1, B2, B3) and topping time (C1, C2, C3), and the flue-cured tobacco safflower dakin yuan was used as material. The results showed that different field capacity, nitrogen rates and topping time had significant effects on tobacco chemical quality. Comprehensive score of chemical composition were the highest for the treatment with soil field capacity of 65%, nitrogen application rate of 5 kg·666.7 m-2, and topping time of 7 days after flowering. A substantial improvement of internal chemical coordination resulted in the availability of upper leaves of tobacco. The yield was 145.51 kg·666.7 m-2 under the optimal combination A2B3C1, while the optimal production combination was A2B2C2 with the value being 1 924.95 yuan·666.7 m-2. The coupling of water and nitrogen had a very significant impact on tobacco yield. The production increased as the comprehensive score of chemical composition increased. Therefore, the appropriate combination of field capacity, nitrogen rates and topping time would improve the chemical composition and intrinsic quality of the various parts of tobacco, increase the production of flue-cured tobacco. |
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