Journal of Zhejiang Agricultural Sciences ›› 2026, Vol. 67 ›› Issue (6): 1480-1484.DOI: 10.16178/j.issn.0528-9017.20250910

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Technical regulations for tobacco-wheat relay intercropping in central Henan and its demonstration effects

LIU Qiaozhen1(), ZHANG Rui1, WANG Mengmeng1, GUO Fangyang1, FAN Yikuan2, SONG Ruifang2, WU Zhaohui1, LI Jianhua3()   

  1. 1.Tobacco Research Institute,Henan Academy of Agricultural Sciences,Xuchang 461000,Henan
    2.Henan Tobacco Company,Zhengzhou 450018,Henan
    3.Xuchang Branch of Henan Tobacco Company,Xuchang 461000,Henan
  • Received:2025-12-11 Online:2026-06-11 Published:2026-06-12
  • Contact: LI Jianhua

Abstract:

Irregular tobacco-wheat intercropping adversely affects tobacco growth and leaf quality. To promote the coordinated development of integrated grain and tobacco production and further improve tobacco quality,a technical regulation for tobacco-wheat relay intercropping in central Henan Province has been developed based on scientific research projects. This regulation emphasizes tobacco as the primary crop,aims to enhance leaf quality,and specifies key aspects including spatio-temporal crop arrangement,variety selection,and corresponding cultivation techniques for tobacco. Demonstration results from seven sites in major tobacco-growing counties of central Henan Province showed that this regulation improves tobacco growth,reduces the incidence of major diseases,and enhances yield stability. The appearance quality,chemical composition,and sensory quality of the tobacco leaves were generally comparable to or approached those of monocropped tobacco,and were significantly better than those under traditional local intercropping practices. Compared with monocropped tobacco,the comprehensive output value increased by 1 106.7 yuan per 667 m2,with a net income increase of 709.4 yuan per 667 m2. Compared with traditional local intercropping,the comprehensive output value increased by 409.4 yuan per 667 m2,with a net income increase of 447.9 yuan per 667 m2. The application of this technical regulation serves as a demonstration model for promoting tobacco quality improvement in tobacco-wheat intercropping systems within integrated grain and tobacco production.

Key words: flue-cured tobacco, tobacco-wheat relay intercropping, technical regulation, demonstration effect

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