Effects of different cultivation patterns on soil microbial community and enzyme activity in continuous cropped pepper field

doi:10.3969/j.issn.1004-1524.2019.09.12

›› 2019, Vol. 31 ›› Issue (9): 1485-1492.DOI: 10.3969/j.issn.1004-1524.2019.09.12

• Horticultural Science • Previous Articles Next Articles

Effects of different cultivation patterns on soil microbial community and enzyme activity in continuous cropped pepper field

DONG Yufei¹, LYU Xiangzhang¹, ZHANG Zikun², HE Hongjun², YU Jingquan¹, ZHOU Yanhong^1,*

1. Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Department of Horticulture, Zhejiang University, Hangzhou 310058, China;
2.Dezhou Academy of Agricultural Sciences, Dezhou 253015, China

Received:2019-01-24 Online:2019-09-25 Published:2019-10-11

Abstract

Abstract: The effects of rotation and intercropping on soil microbial community and enzyme activity were studied by taking three years of continuous cropping of pepper, garlic-pepper rotation and maize-pepper intercropping rhizosphere soil as objects, which was expected to provide theoretical basis for relieving pepper continuous cropping obstacle. Results showed that rotation and intercropping significantly enhanced the activities of catalase and urease, and increased the biomass of bacteria and actinomycetes while the biomass of fungi was greatly decreased compared with continuous cropped soil (P<0.05). According to high-throughput sequencing results, the soil microbial structure of rotation field was similar to intercropping soil but far different from continuous cropped soil. Findings revealed that Proteobacteria and Acidobacteria were dominant bacterial populations, while Ascomycota and Basidiomycota were leading fungi phylum among the tested soil. Moreover, the relative abundances of Acidobacteria, Bacteroidete, Planctomycetes, Xanthomonada and Fusarium, Dothideomycetes, Zygomycota among different treatments were much significant (P<0.05). In conclusion, rotation and intercropping enhanced soil enzyme activity and soil bacterial community diversity. Besides, they improved soil microflora by reducing the relative abundance of potential pathogens while increasing the abundance of potential beneficial bacteria.

Key words: rotation, intercropping, pepper, continuous cropping, soil microbe, soil enzyme activity

CLC Number:

S641.3

DONG Yufei, LYU Xiangzhang, ZHANG Zikun, HE Hongjun, YU Jingquan, ZHOU Yanhong. Effects of different cultivation patterns on soil microbial community and enzyme activity in continuous cropped pepper field[J]. , 2019, 31(9): 1485-1492.

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Effects of different cultivation patterns on soil microbial community and enzyme activity in continuous cropped pepper field

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