Article (Scientific journals)
Bio-activation of soil with beneficial microbes after soil fumigation reduces soil-borne pathogens and increases tomato yield.
Cheng, Hongyan; Zhang, Daqi; Ren, Lirui et al.
2021In Environmental Pollution, 283, p. 117160
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Keywords :
1,3-dichloropropene; Beneficial microorganisms; Biofertilizer; Soil health; Soil-borne pathogen; Tomato; Fertilizers; Soil; Fumigation; Plant Diseases; Soil Microbiology; Lycopersicon esculentum; Biofertilizers; Fusarium; Phytophthora; Soil fumigation; Soil pH; Soil-borne pathogens; Tomato yield; Toxicology; Pollution; Health, Toxicology and Mutagenesis; General Medicine
Abstract :
[en] Soil-borne diseases have become increasingly problematic for farmers producing crops intensively under protected agriculture. Although soil fumigants are convenient and effective for minimizing the impact of soil-borne disease, they are most often detrimental to beneficial soil microorganisms. Previous research showed that bio-activation of soil using biological control agents present in biofertilizers or organic fertilizers offered promise as a strategy for controlling soil-borne pathogens when the soil was bio-activated after fumigation. Our research sought to determine how bio-activation can selectively inhibit pathogens while promoting the recovery of beneficial microbes. We monitored changes in the soil's physicochemical properties, its microbial community and reductions in soil-borne pathogens. We found that the population density of Fusarium and Phytophthora were significantly reduced and tomato yield was significantly increased when the soil was bio-activated. Soil pH and soil catalase activity were significantly increased, and the soil's microbial community structure was changed, which may have enhanced the soil's ability to reduce Fusarium and Phytophthora. Our results showed that soil microbial diversity and relative abundance of beneficial microorganisms (such as Sphingomonas, Bacillus, Mortierella and Trichoderma) increased shortly after bio-activation of the soil, and were significantly and positively correlated with pathogen suppression. The reduction in pathogens may have been due to a combination of fumigation-fertilizer that reduced pathogens directly, or the indirect effect of an optimized soil microbiome that improved the soil's non-biological factors (such as soil pH, fertility structure), enhanced the soil's functional properties and increased tomato yield.
Disciplines :
Environmental sciences & ecology
Phytobiology (plant sciences, forestry, mycology...)
Author, co-author :
Cheng, Hongyan;  Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Zhang, Daqi;  Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Ren, Lirui;  Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Song, Zhaoxin ;  Université de Liège - ULiège
Li, Qingjie;  Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Wu, Jiajia;  Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Fang, Wensheng;  Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
Huang, Bin;  Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China, Institute of Tobacco Research, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
Yan, Dongdong;  Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China, Beijing Innovation Consortium of Agriculture Research System, Beijing, 100029, China
Li, Yuan;  Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China, Beijing Innovation Consortium of Agriculture Research System, Beijing, 100029, China
Wang, Qiuxia;  Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China, Beijing Innovation Consortium of Agriculture Research System, Beijing, 100029, China
Cao, Aocheng ;  Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China, Beijing Innovation Consortium of Agriculture Research System, Beijing, 100029, China. Electronic address: caoac@vip.sina.com
Language :
English
Title :
Bio-activation of soil with beneficial microbes after soil fumigation reduces soil-borne pathogens and increases tomato yield.
Publication date :
15 August 2021
Journal title :
Environmental Pollution
ISSN :
0269-7491
eISSN :
1873-6424
Publisher :
Elsevier Ltd, England
Volume :
283
Pages :
117160
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NSCF - National Natural Science Foundation of China [CN]
Funding text :
The authors are grateful for the financial support from National Natural Science Foundation project of China ( 31972313 ), and the Agricultural Science and Technology Innovation Program over the years. We thank Dr Tom Batchelor for providing editorial comments on the manuscript.
Available on ORBi :
since 23 August 2022

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