| 施氮量、打顶方式与留叶数对曲靖K326烟叶产质量的影响 |
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| 引用本文： | 乔勇,王涛,贺帆,李佛琳,陈太福,任汝周,陈雨.施氮量、打顶方式与留叶数对曲靖K326烟叶产质量的影响[J].农学学报,2018,8(3). |
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| 作者姓名： | 乔勇 王涛 贺帆 李佛琳 陈太福 任汝周 陈雨 |
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| 作者单位： | 云南农业大学烟草学院,云南省烟草公司曲靖市公司,河南农业大学烟草学院,云南农业大学烟草学院,云南农业大学烟草学院,云南农业大学烟草学院,云南农业大学烟草学院 |
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| 基金项目： | 中国烟草公司云南省公司项目“提高曲靖市红大和K326 烘烤质量关键配套技术研究与应用”(2014YN23)。 |
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| 摘 要： | 为明确曲靖烤烟K326施氮量、打顶方式及其留叶数的最佳组合方式,以提高该地区烟叶产质量稳定性和可用性。2015年在曲靖师宗,采用L9(34)正交试验设计对施氮量、打顶方式及其留叶数进行了研究,分析其对烤烟农艺性状、经济性状及烟叶化学成分的影响。结果表明,施氮量是农艺性状和经济性状的主效因素。施氮量增加,农艺性状各项指标均有所增加,120kg/hm2的施氮量显著高于其他两个处理。在产量、产值、均价和中上等烟比例方面,120kg/hm2施氮量水平表现最好。打顶方式是影响评吸质量的主效因素。 扣心打顶的产量最高,中上等烟比例、均价及产值方面以初花打顶表现最好,评吸结果以初花打顶相对较好。留叶数的主效影响主要表现在感官质量和化学成分方面,即烟气的杂气、劲头、总糖、糖碱比等方面。适宜于曲靖当地生产实际的K326施氮量、打顶方式及其留叶数的最佳组合方式是施纯氮120kg/hm2、初花打顶、20~22片留叶数,可作为曲靖K326特色品种的关键栽培技术加以推广。
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| 关 键 词： | 新媒体 新媒体 科普传播 “农科专家在线” 农业科技 |
| 收稿时间： | 2017/5/8 0:00:00 |
| 修稿时间： | 2017/6/1 0:00:00 |
Influence of N Application Rate,Topping Mode and Leaves Remained on Yield and Quality of Flue-cured Tobacco Variety‘K326’in Qujing |
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| Abstract: | The study aims to determine the best combination of N application rate, topping mode and remained leaves of flue-cured tobacco variety‘K326’in Qujing, and promote stability of yield and quality and usability in this area. L9(34) orthogonal experimental design was employed to study N application rate, topping mode and remained leaves in Shizong County of Qujing in 2015, and we analyzed the effects of these factors on the agronomic characters, economic characters and chemical composition of tobacco. Results showed that, N application rate was the dominant factor affecting agronomic characters and economic characters. As N application rate increased, the indexes of agronomic characters increased, and N application rate of 120 kg/hm2 was significantly higher than the other two treatments. N application rate of 120 kg/hm2 had the best performance on yield, output value, average price and middle-high quality leaves ratio. Topping mode was the dominant factor affecting smoking quality. Topping at buttoning stage had the maximum yield. Topping at early blooming stage had the best performance on output value, average price, middle-high quality leaves ratio and
smoking result. Remained leaves was the dominant factor affecting sensory quality and chemical composition of tobacco, namely, offensive odor and strength of smoke, total sugar, ratios of sugar to alkaloid. N application rate of 120 kg/hm2, topping at early blooming stage and 21 leaves remained was the best combination of this experiment and suitable for practical production in Qujing. |
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| Keywords: | Flue-cured tobacco K326 Nitrogen application rate Topping mode Leaves remained |
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