Journal of Tianjin Agricultural University ›› 2023, Vol. 30 ›› Issue (5): 16-22.doi: 10.19640/j.cnki.jtau.2023.05.004

• Researches and Scientific Notes • Previous Articles     Next Articles

Effects of microbial fertilizer on eggplant growth and development and soil environment

Song Jiaxin, Shi Wenxin, Liu Shihui, Wang MengyiCorresponding Author   

  1. College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300392, China
  • Received:2022-09-17 Online:2023-10-31 Published:2023-12-22

Abstract: The comparative fertilization experiment of eggplant was conducted in the greenhouse of Xiqing District, Tianjin. Taking single compound fertilizer as the control(T0), three different treatments were designed with different ratios of reduced mass of compound fertilizer and microbial fertilizer: T1(compound fertilizer∶microbial fertilizer =3∶1), T2(compound fertilizer∶microbial fertilizer =1∶1), T3(compound fertilizer∶microbial fertilizer =1∶3). SPSS software was used to analyze the plant height, stem diameter, maximum leaf area, yield, relative chlorophyll content(SPAD value)of eggplant in four different treatments, and high-throughput sequencing technology was used to analyze the microbial diversity in eggplant growth substrate in T0 and T3 treatments.The results showed that after applying microbial fertilizer to eggplant growth substrate, the number of dominant microbial communities in the substrate changed, the sequence number of microbial populations increased, the relative abundance of species increased, and the diversity of microbial communities improved. At the same time, the yield of eggplant in T3 treatment was the highest, and plant height, stem diameter, maximum leaf area, relative chlorophyll content and other physiological indicators were more prominent. So T3 is the best fertilizer proportion scheme, and the results provide theoretical basis and practical guidance for the application and sustainable production of eggplant microbial fertilizer.

Key words: microbial fertilizer, high throughput sequencing, physiology, yield, microbial diversity, relative abundance of species

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