Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (12): 2916-2922.DOI: 10.16178/j.issn.0528-9017.20240368

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Effects of organic fertilizer application rate on yield and quality of Yunyan 87

ZHU Hongqiang1(), SHI Nuo2, ZHOU Yanbin1, DAI Huijuan1,*(), LYU Penghui1, LIU Bo1, WANG Shengfeng1, MU Wenpo1   

  1. 1. China Tobacco Hebei Industrial Co., Ltd., Shijiazhuang 050051, Hebei
    2. College of Tobacco Science, Yunnan Agricultural University, Kunming 650201, Yunnan
  • Received:2024-09-13 Online:2025-12-11 Published:2025-12-17

Abstract:

To investigate the effects of different organic fertilizer application rates on the growth, yield, and quality of flue-cured tobacco, Yunyan 87 was used as the test material. Five organic fertilizer application levels were set: 79.8 (A1), 106.4 (A2), 133.0 (A3), 159.6 (A4), and 186.2 (A5) g per seedling. Parameters including the growth period, agronomic traits, photosynthetic characteristics, soil physicochemical properties, yield and chemical components of cured tobacco leaves were measured. The results showed that treatments A4 and A5 prolonged the growth period of flue-cured tobacco and improved field uniformity. The net photosynthetic rate, soil total nitrogen, available potassium, and organic matter contents in treatment A5 were significantly (p<0.05) higher than those in other treatments. Additionally, the cured tobacco leaves under A5 exhibited the highest yield, most harmonious chemical composition and the highest sensory evaluation score of smoking. In conclusion, the organic fertilizer application rate in treatment A5 is considered suitable, as it effectively promotes tobacco growth and improves the quality of flue-cured tobacco.

Key words: organic fertilizer, flue-cured tobacco, chemical component, sensory smoking quality

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