The Regulatory Effects of Enhanced Density Combined with Reduced Nitrogen Fertilizer on Yield, Quality and Nutrient Use Efficiency of Flue-cured Tobacco in Rainy Areas, Yunnan Province

YU Xiaofen; YANG Shuming; ZOU Bingli; XIE Yan; LIU Hualin; LIU Jiahong; ZHANG Ruiqin; Lü Yaqiong; CAI Yongzhan; ZHANG Suhua; QIU Xueli

doi:10.13870/j.cnki.stbcxb.2020.05.045

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The Regulatory Effects of Enhanced Density Combined with Reduced Nitrogen Fertilizer on Yield, Quality and Nutrient Use Efficiency of Flue-cured Tobacco in Rainy Areas, Yunnan Province

更新时间：2025-03-12

- The Regulatory Effects of Enhanced Density Combined with Reduced Nitrogen Fertilizer on Yield, Quality and Nutrient Use Efficiency of Flue-cured Tobacco in Rainy Areas, Yunnan Province
- Vol. 34, Issue 5, Pages: 327-333(2020)
- 作者机构：
  
  1. 云南省农业科学院农业环境资源研究所,昆明,650205
  2. 云南省烟草公司曲靖市公司,云南,曲靖,655002
  3. 云南省农业科学院生物技术与种质资源研究所,昆明,650205
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2020.05.045
  CLC： S572
- Published：2020
- 稿件说明：
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YU Xiaofen, YANG Shuming, ZOU Bingli, et al. The Regulatory Effects of Enhanced Density Combined with Reduced Nitrogen Fertilizer on Yield, Quality and Nutrient Use Efficiency of Flue-cured Tobacco in Rainy Areas, Yunnan Province[J]. 2020, 34(5): 327-333.
DOI：

YU Xiaofen, YANG Shuming, ZOU Bingli, et al. The Regulatory Effects of Enhanced Density Combined with Reduced Nitrogen Fertilizer on Yield, Quality and Nutrient Use Efficiency of Flue-cured Tobacco in Rainy Areas, Yunnan Province[J]. 2020, 34(5): 327-333. DOI： 10.13870/j.cnki.stbcxb.2020.05.045.

摘要

为明确增密减氮对烤烟产质量及肥料利用率的调控效应。以烤烟品种"云烟105"为材料，研究种植密度（13 890，15 150，16 665株/hm2）和施氮水平（0，84，94.5，105 kg/hm2）及其互作对烤烟产质量及养分利用效率的影响。结果表明：适度增密减氮能显著提高烤烟肥料利用率、产量和产值，使烟叶总糖、还原糖、钾含量显著升高，总氮、烟碱含量降低，对水溶性氯无显著影响，烟叶化学品质更加协调。烟叶化学成分协调性及烤烟氮磷钾利用率显著受年份、密度、施氮及年份×施氮、密度×施氮、年份×密度×施氮互作影响，其中施氮、密度及互作对烟叶化学成分含量效应分别为42.5%，27.3%，18.9%，而其对养分利用率的效应分别为38.2%，25.4%，23.8%。与当前烤烟种植模式相比，增密和减氮10%~20%组合对烤烟增产、提质和增效作用显著，最佳密度和施氮量分别为15 150株/hm2和84.0~94.5 kg/hm2。

Abstract

In order to clarify the regulation effects of enhanced density combined with reduced nitrogen fertilizer on yield

quality and fertilizer use efficiency of flue-cured tobacco

a field experiment which took flue-cured tobacco cultivar "Yunyan 105" was conducted in rainy areas for two years (2016 and 2018). Three plant densities (low density of 13 890 plants/hm2

medium density of 15 150 plants/hm2 and high density of 16 665 plants/hm2) and four nitrogen levels (0

94.5 and 105 kg/hm2) were set

and the effects of planting density

reduced nitrogen and their interaction on yield

quality and nutrient use efficiency were studied. The results showed that compared with the conventional planting pattern

moderate density and reduced nitrogen fertilizer significantly promoted fertilizer use efficiency

yield and output

increased the contents of total sugar

reducing sugar and potassium

reduced total nitrogen and nicotine contents

but did not affect water-soluble chlorine significantly

resulting in the more harmonious tobacco chemical components. The chemical components usability index and NPK utilization in flue-cured tobacco were significantly affected by year

density

N application and their interactions

including the interaction of year and N rate

density and N rate

year both density and N rate. Meanwhile

the contribution of N fertilizer on chemical components usability and fertilizer use efficiency of flue-cured tobacco were 42.5%

38.2%

and that of planting density were 27.3%

25.4%

and that of the interaction of both planting density and N rate were 18.9%

23.8%

respectively. Compared with the current cultivated pattern of flue-cured tobacco

the enhanced density combined with reduction of 10%~20% in nitrogen fertilizer significantly affected to yield

quality and NPK use efficiency of tobacco

and the optimal cultivated pattern of planting density and N rate should be 15 150 plants/hm2 and 84.0~94.5 kg/hm2

respectively.

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