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Acta Horticulturae Sinica ›› 2022, Vol. 49 ›› Issue (2): 395-406.doi: 10.16420/j.issn.0513-353x.2021-0066

• Research Notes • Previous Articles     Next Articles

Effects of Different Material Protein Fermentation Products on Apple Replanted Soil Microbial Environment and the Growth of Malus hupehensis Seedlings

PAN Fengbing1, CHEN Ran1, JIANG Weitao1, WANG Haiyan1, LÜ Yi2, SHEN Xiang1, CHEN Xuesen1, YIN Chengmiao1,*(), MAO Zhiquan1,*()   

  1. 1State Key Laboratory of Crop Biology,College of Horticultural Science and Engineering,Shandong Agricultural University,Tai’an,Shandong 271018,China
    2Weihai Acedemy of Agricultural Sciences,Weihai,Shandong 264200,China
  • Received:2021-02-14 Revised:2021-05-13 Online:2022-02-25 Published:2022-02-28
  • Contact: YIN Chengmiao,MAO Zhiquan E-mail:yinchengmiao@163.com;mzhiquan@sdau.edu.cn

Abstract:

This study aims to explore the feasibility of different material protein fermentation products to alleviate apple replant disease. A pot experiment was conducted using Malus hupehensis seedlings as the test material,and five treatments(replanted orchard soil(control),sterilized replanted orchard soil,earthworm fermentation product,soybean meal fermentation product,waste fish fermentation product)were set up. The total amount of soil microorganisms,the number of harmful fungi,soil enzyme activities,the content of soil phenolic acids,the biomass of Malus hupehensis seedlings and the related indexes of plant roots were determined. The results showed that protein fermentation products of three different materials could effectively increase the number of bacteria,reduce the number of fungi and changed the fungal community structure in replanted soil. Among them,earthworm fermentation product had the best effect on reducing harmful fungi,Fusarium oxysporum,F. proliferatum,F. solani and F. moniliforme decreased by 59.2%,52.0%,64.9% and 67.1%,respectively,compared with replanted orchard soil(control). Three different fermentation products also increased soil enzyme activity and decreased the content of phenolic acids in replanted soil. The plant biomass of earthworm fermentation product treatment was significantly higher than that of replanted orchard soil(control)treatment,and the plant dry weight increased by 90.22%. The fermentation products also promoted the growth of plant roots,the root antioxidant enzymes and the root respiration rate. Among them,earthworm fermentation product had the most significant effect. The total fine root length,total fine root surface area,root volume and root tip number of earthworm fermentation product were increased by 147.21%,225.87%,299.85% and 291.03% compared with replanted orchard soil(control),respectively. SOD,POD,CAT and the root respiration rate were increased by 46.90%,133.94%,197.69% and 113.23% compared with replanted orchard soil(control),respectively. In summary,the fermentation products of different protein materials can alleviate the damage of replant disease to young apple trees in varying degrees by adjusting the microbial community structure,improving the replanted soil environment,and promoting plant growth. Comprehensive consideration of various indicators,the effect of earthworm fermentation products is the most significant.

Key words: apple, replant disease, protein, fermentation, soil biological environment

CLC Number: