|Table of Contents|

Effects of Rape Rhizosphere and Biofumigation on the Community of Continuous Cropping Soil Fungi

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年10
Page:
95-103
Research Field:
Publishing date:

Info

Title:
Effects of Rape Rhizosphere and Biofumigation on the Community of Continuous Cropping Soil Fungi
Author(s):
LYU Beibei; ZHANG Guiyun; ZHANG Liping; LIU Zhen; FAN Qiaolan; YAO Zhong
(Institute of Cotton Research,Shanxi Academy of Agricultural Sciences,Yuncheng,Shanxi 044000)
Keywords:
rape; biofumigation; continuous cropping obstacle; soil fungi
PACS:
-
DOI:
10.11937/bfyy.20194058
Abstract:
Based on summer squash experimental field with continuous cropping for many years,the objective of this study was to research the changes of soil environmental factors and fungal community structure under different treatments by using soil physical and chemical analysis,high-throughput sequencing technology.Three treatments were designed as follows rape rhizosphere soil(RRS),non-rhizosphere soil(NRS) and biofumigation soil(BFS).The results showed that after planting rape in the continuous cropping summer squash experimental field,RRS and BFS could improve soil nutrients,change the structure and composition of soil fungal community,and inhibit or kill some harmful pathogens in the soil,and to some extent,it was helpful to control soil-borne diseases caused by continuous cropping.At the phylum level,five fungal phyla were identified in three treatments,among which Ascomycete was absolutely dominant,and NRS had a classification status uncertain fungal phylum.The richness and diversity indexes of three treatments were ranked as follows,NRS>BFS>RRS,and there was only significant difference between RRS and NRS.Compared with NRS,RRS and BFS could inhibit or kill some harmful fungi in soil.Biomarkers under NRS were higher than the others.UPGMA analysis showed that the soil fungal community structure of NRS and BFS was similar.Compared with NRS,RRS and BFS significantly increased the contents of soil available nitrogen,available potassium and organic matter,and reduced the soil pH.CCA analysis showed that the contents of soil available nitrogen,available phosphorus and organic matter were the most important environmental factors affecting the fungal communities.

References:

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Last Update: 2020-07-25