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Journal of Agriculture ›› 2024, Vol. 14 ›› Issue (10): 6-11.doi: 10.11923/j.issn.2095-4050.cjas2023-0211

Special Issue: 生物技术 烟草种植与生产

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Effects of Irrigation Ridging on Growth, Development and Quality of Upper Leaves of Flue-Cured Tobacco

WANG Dequan1(), WANG Dahai1, WANG Yuhua1, WANG Yi1, Guan Ensen1, LI Qiang2, LIANG Xiaofang3, CHEN Keling3()   

  1. 1 Shandong Weifang Tobacco Co., LTD., Weifang 262100, Shandong, China
    2 Shandong Tobacco Industrial Co., LTD., Jinan 250014, Shandong, China
    3 Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs /Institute of Tobacco, Chinese Academy of Agricultural Sciences, Qingdao 266101, Shandong, China
  • Received:2023-09-21 Revised:2024-01-05 Online:2024-10-20 Published:2024-10-17

Abstract:

To explore the water management methods to enhance the usability of upper tobacco leaves in Shandong tobacco-growing areas and investigate their response patterns, field experiments were conducted by using ‘Zhongyan 100’ as the experimental material. The effects of furrow irrigation after watering on the accumulation of material, photosynthetic characteristics, nitrogen-phosphorus-potassium content and accumulation, leaf tissue structure, and chemical composition of upper tobacco leaves were studied. The results indicated that, compared to conventional treatment, furrow irrigation significantly increased the dry matter accumulation of roots, stems, and leaves, as well as the leaf thickness and photosynthetic characteristics of post-cured tobacco throughout its growth period. It also promoted the transport of nitrogen from roots and stems to leaves, enhancing nitrogen content and accumulation in late-stage leaves. It reduced reducing sugar and total sugar content, while significantly increased nicotine, total nitrogen content, and maintained appropriate values for sugar-to-nicotine and nitrogen-to-nicotine ratios. In summary, furrow irrigation effectively promotes the growth and development of upper tobacco leaves and enhances their quality. This provides a reference for improving the usability of upper tobacco leaves in Shandong tobacco-growing areas.

Key words: irrigation ridging, flue-cured tobacco, upper leaf, growth and development, quality