Effect of fertilisation on fungal community in topsoil of winter wheat field

IF 2.3 3区农林科学 Q1 AGRONOMY

Plant, Soil and Environment Pub Date : 2022-07-20 DOI:10.17221/117/2022-pse

Fei-Hong Zhai, Tingliang Li, Xiaorui Qin, Xiaodong Zhao, Liwei Jiang, Ying-he Xie

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引用次数: 1

Abstract

Soil fungi played important roles in the maintenance of soil fertility and soil sustainable development. In this study, the effects of different fertilisers (i.e. bacterial fertiliser (BF), composed of organic matters and bacteria; mineral fertiliser (MF), composed of N, P and K) on soil fungi in wheat field were analysed. The results showed that the yield of winter wheat with BF was 4 788.52 kg/ha, which was significantly higher than that with term MF. Chao 1and Shannon indexes and principal coordinates analysis showed that fertilisation increased the richness of soil fungi to varying degrees and changed the fungal community structure of soil compared with no fertiliser control (NF). The soil fungal community was mainly composed of Ascomycota, Basidiomycota and Mortierellomycota, with Ascomycota as the main species (62.67–65.08%). Compared with MF, the relative abundance of potential beneficial fungi Talaromyces in BF increased 4.44 times. Compared with no fertiliser control, the relative abundance of potential beneficial fungi Chrysosporium in BF increased 4.11 times. The abundance of potential soil pathogenic fungi (P < 0.01), like Stachybotrys, Acrocalymma, Achroiostachys, Arachnomyces and Setophoma, significantly decreased in BF treatment, which was beneficial to the maintenance of crop health and the sustainable development of the environment. Moreover, the network analysis showed that the interspecific relationship of soil fungi in BF was more intimate than MF and NF and fungi were inclined to adopt cooperative manner to adapt ecological niches in BF treatment. The improvement of wheat yield might be due to the optimisation of soil fungal community structure by applying BF, which strengthened the transformation of nutrients in soil, increased some biocontrol microorganism, and reduced the crop disease. The results explain the improvement of wheat yield by BF to a certain extent, and provided theoretical basis for high-yield cultivation of wheat.

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施肥对冬麦田表层真菌群落的影响

土壤真菌在保持土壤肥力和土壤可持续发展方面发挥着重要作用。在这项研究中，不同肥料（即由有机物和细菌组成的细菌肥料；分析了由N、P和K组成的矿物肥料（MF）对麦田土壤真菌的影响。结果表明，BF处理的冬小麦产量为4788.52kg/ha，显著高于MF处理。Chao和Shannon指数及主坐标分析表明，与不施肥处理相比，施肥处理不同程度地增加了土壤真菌的丰富度，改变了土壤真菌群落结构。土壤真菌群落主要由子囊菌门、担子菌门和Mortiellomycota组成，以子囊菌科为主（62.67–65.08%）。与MF相比，BF中潜在有益真菌Talaromyces的相对丰度增加了4.44倍。与不施肥对照相比，BF中潜在有益真菌金孢菌的相对丰度增加了4.11倍。BF处理后，土壤潜在病原真菌Stachybotrys、Acrocalyma、Achriostachys、Arachnoomyces和Setophoma的丰度显著降低（P<0.01），有利于维护作物健康和环境的可持续发展。此外，网络分析表明，BF土壤真菌的种间关系比MF和NF更为密切，真菌在BF处理中倾向于采用合作方式来适应生态位。小麦产量的提高可能是由于施用BF优化了土壤真菌群落结构，加强了土壤养分的转化，增加了一些生物防治微生物，减少了作物病害。研究结果在一定程度上解释了BF对小麦产量的提高，为小麦高产栽培提供了理论依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plant, Soil and Environment Agronomy, Soil Science-农艺学

CiteScore

4.80

自引率

4.20%

发文量

审稿时长

2.4 months

期刊介绍： Experimental biology, agronomy, natural resources, and the environment; plant development, growth and productivity, breeding and seed production, growing of crops and their quality, soil care, conservation and productivity; agriculture and environment interactions from the perspective of sustainable development. Articles are published in English.