| 何承刚,辛培尧.不同用量硝酸钾追肥对烤烟产量质量的影响[J].干旱地区农业研究,2006,(1):70~72 |
| 不同用量硝酸钾追肥对烤烟产量质量的影响 |
| Effect of different application of topdressing potassium nitrate on yield and quality in flue-cured tobacco |
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| DOI：10.7606/j.issn.1000-7601.2006.01.16 |
| 中文关键词: 烤烟 KNO3追肥用量 产量 质量 |
| 英文关键词:flue-cured tobacco topdressing amount of KNO3 yield quality |
| 基金项目:云南省教育厅科学研究基金(04Y552B)； 云南农业大学青年基金(2002Q11) |
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| 中文摘要: |
| 通过田间试验,研究了不同用量KNO3追肥对烤烟产量质量的影响。结果表明,在一定范围内随着KNO3追肥用量的增加,烟叶的产量、上等烟比例、中上等烟比例、均价、产值都相应地提高,而且总糖、还原糖以及钾含量也相应提高,而烟碱、总氮则相应减少。但在KNO3追肥用量为300 kg/hm2时,产量质量指标有所下降。本试验条件下,追施KNO3225 kg/hm2对提高烤烟的产量质量性状最为有利。 |
| 英文摘要: |
| A field trial was conducted to determine the appropriate topdressing amount of KNO3 for flued-cured tobacco.The results showed that the yield and quality of flue-cured tobacco were improved while the topdressing amount of KNO3 was increased from 0 kg/hm2 to 225 kg/hm2.When the topdressing amount got to 300 kg/hm2,the yield,the rate of middle and first class leaf,the average price,the production value and the chemical quality of flue-cured tobacco decreased.The appropriate top-dressing KNO3 amount is very useful to enhance K content and to reduce sugar and total sugar.Under the condition of this experiment,the appropriate top-dressing amount of KNO3 was 225 kg/hm2. |
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