HUBEI AGRICULTURAL SCIENCES ›› 2023, Vol. 62 ›› Issue (12): 38-45.doi: 10.14088/j.cnki.issn0439-8114.2023.12.009

• Resource & Environment • Previous Articles     Next Articles

Effects of plastic film mulching on physicochemical properties and fungal community structure of tobacco-growing soil during whole growth period

GUO Chong1, LIU Ya-jie1, YANG Yi-de2, YANG Yang2, YANG Guo-wei1, XU Yan-ling1, CHEN Fo-yuan2, HAN Wei2, LIU Lei1, YAN Min2, ZENG Shu-hua1   

  1. 1. College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China;
    2. Yibin Branch of Sichuan Province Tobacco Company,Yibin 644600, Sichuan, China
  • Received:2023-06-10 Published:2024-01-10

Abstract: Using white plastic film covering, which was widely used in tobacco production practice, and the appropriate time for film removal treatment as a control, the effects of different colors of plastic film (white plastic film, black plastic film and black and white double color plastic film) covering during the whole growth period on the physicochemical properties and fungal community structure of tobacco planting soil at a higher altitude (1 200 m) were studied, and the relationship between soil physicochemical properties and fungal community structure was explored by correlation and redundancy analysis. The results showed the yield and output value of flue-cured tobacco in the whole growth period were significantly higher than those in the control (P<0.05), and there were significant differences in soil physical and chemical properties among different treatments (P<0.05). The main groups of soil fungi in this area were Ascomycota, Basidiomycota and Zygomycota, accounting for more than 83% of the total fungi. The diversity of soil fungi under mulching with different colors during the whole growth period was as follows from high to low: black and white double color film covering the whole growth period, white film covering the whole growth period, control, black film covering the whole growth period. The dominant genera of bacteria in each treatment were significantly different. The relative abundance of Hypocrea, Ceratobasidium, Fusarium and Nectria were closely related to soil nitrogen and phosphorus. macroelements (total nitrogen, alkaline hydrolysis nitrogen, total phosphorus, available phosphorus, total potassium), medium and trace elements (total sulfur, total copper, available copper, total zinc, available magnesium, total boron) were the leading environmental factors on the community structure of tobacco-growing soil. On the whole, it was feasible to cover the film during whole growth period in the high altitude tobacco area of Yibin City, and the black and white double color film was the optimal choice.

Key words: tobacco, soil, film mulching, fungal community, soil physical and chemical properties, high-throughput sequencing

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