Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2024, Vol. 40 ›› Issue (30): 26-32.doi: 10.11924/j.issn.1000-6850.casb2024-0356

Special Issue: 生物技术 烟草种植与生产

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Progress in the Application of Potassium-Solubilizing Bacteria in Promoting Tobacco Growth and Enhancing Stress Resistance

DU Yuhai1(), ZHAO Zongpeng2, WANG Fei1, LIU Lili1, ZHANG Xunxia1, MA Jun1, LIN Bing1, MA Mengmeng1, ZHANG Qiang2()   

  1. 1 Linqu Branch of Shandong Weifang Tobacco Company, Weifang, Shandong 262699
    2 College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018
  • Received:2024-05-29 Revised:2024-08-01 Online:2024-11-09 Published:2024-10-23

Abstract:

In the current context of escalating global climate change and resource-environmental pressures, the challenges of uneven soil nutrients and plant survival under adverse conditions have become more prominent. To promote the transformation of agriculture to green sustainable development and further explore the application of potassium-solubilizing bacteria in modern agriculture, this study comprehensively analyzed the potassium-solubilizing mechanism of potassium-solubilizing bacteria and its role in soil improvement and plant nutrition improvement. Potassium-solubilizing bacteria, a kind of microorganisms that decompose silicate minerals, modify the surface structure of these minerals to convert insoluble potassium into an absorbable form by plants. This transformation is vital for enhancing soil fertility and improving environmental conditions. In tobacco cultivation, potassium-solubilizing bacteria break down silico-aluminate minerals in the soil, thereby releasing potassium. This process optimizes growth conditions, enhancing both the yield and quality of tobacco. Under adverse conditions, potassium-solubilizing bacteria boost plant resilience by enhancing nutrient absorption and regulating physiological processes within plants. This study lays a theoretical and practical groundwork for enhancing tobacco growth.

Key words: tobacco, potassium-solubilizing bacteria, potassium-solubilizing mechanism, growth and development, stress resistance