Microalgae-based biofertilizers improve fertility and microbial community structures in the soil of potted tomato

Continuous cropping decreases soil nutrients and destroys microbial community structure, so the development of eco-friendly and effective biofertilizers is necessary under present conditions. In this study, the preserving microalgal strain Tribonema sp. (H) was firstly selected to be combined with a...

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Main Authors: Xiaotong Song, Jiayi Liu, Yanzhang Feng, Chengxu Zhou, Xiaohui Li, Xiaojun Yan, Roger Ruan, Pengfei Cheng
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-12-01
Series:Frontiers in Plant Science
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Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2024.1461945/full
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author Xiaotong Song
Jiayi Liu
Yanzhang Feng
Chengxu Zhou
Xiaohui Li
Xiaojun Yan
Roger Ruan
Pengfei Cheng
author_facet Xiaotong Song
Jiayi Liu
Yanzhang Feng
Chengxu Zhou
Xiaohui Li
Xiaojun Yan
Roger Ruan
Pengfei Cheng
author_sort Xiaotong Song
collection DOAJ
description Continuous cropping decreases soil nutrients and destroys microbial community structure, so the development of eco-friendly and effective biofertilizers is necessary under present conditions. In this study, the preserving microalgal strain Tribonema sp. (H) was firstly selected to be combined with agroforestry waste (shell powder, straw fermentation liquid) and the agroforestry microorganism Bacillus sp. to form microalgae-based fertilizers for the continuous cropping soil of potted tomato. Compared to the control (CK), microalgae-based fertilizers (concentration: 4.45 × 106 cells/ml, dosage: 20 ml/day) improved soil nutrients and salinization indicators. Specifically, the combination of Tribonema sp. and shell powder (HB) reduced electrical conductivity (EC) by 33.7% and significantly increased the Ca2+ content by 59.4%; Tribonema sp. and Bacillus sp. (HY) improved the effects of available phosphorous (AP), DOC, DON, NH4+-N, NO3−-N, and Mg2+ in the soil by 27.4%, 231.3%, 403.4%, 125.2%, 215.6%, and 73.4%, respectively. Microalgae-based fertilizers alter the abundance of soil bacteria and fungi, causing beneficial bacteria such as Thermonaerobaculia, Subgroup_10, Sordariomycetes, and Microascaceae to increase, while pathogenic bacteria like Pseudomonas, Togniniaceae, and Phaeoacremonium decreased. Combining microalgae with agroforestry wastes as a biofertilizer is promising to improve the microbial community structure of the soil with continuous cropping, which will aid in the increase of tomato production and promote green agricultural development.
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institution Kabale University
issn 1664-462X
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publishDate 2024-12-01
publisher Frontiers Media S.A.
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spelling doaj-art-8d83649c768f4371967127dce299835b2025-01-03T15:57:27ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2024-12-011510.3389/fpls.2024.14619451461945Microalgae-based biofertilizers improve fertility and microbial community structures in the soil of potted tomatoXiaotong Song0Jiayi Liu1Yanzhang Feng2Chengxu Zhou3Xiaohui Li4Xiaojun Yan5Roger Ruan6Pengfei Cheng7College of Food Science and Engineering, Ningbo University, Ningbo, Zhejiang, ChinaCollege of Food Science and Engineering, Ningbo University, Ningbo, Zhejiang, ChinaCollege of Food Science and Engineering, Ningbo University, Ningbo, Zhejiang, ChinaCollege of Food Science and Engineering, Ningbo University, Ningbo, Zhejiang, ChinaCollege of Food Science and Engineering, Ningbo University, Ningbo, Zhejiang, ChinaSchool of Marine Sciences, Ningbo University, Ningbo, Zhejiang, ChinaCenter for Biorefining, Department of Bioproducts and Biosystems Engineering, University of Minnesota-Twin Cities, Saint Paul, MN, United StatesCollege of Food Science and Engineering, Ningbo University, Ningbo, Zhejiang, ChinaContinuous cropping decreases soil nutrients and destroys microbial community structure, so the development of eco-friendly and effective biofertilizers is necessary under present conditions. In this study, the preserving microalgal strain Tribonema sp. (H) was firstly selected to be combined with agroforestry waste (shell powder, straw fermentation liquid) and the agroforestry microorganism Bacillus sp. to form microalgae-based fertilizers for the continuous cropping soil of potted tomato. Compared to the control (CK), microalgae-based fertilizers (concentration: 4.45 × 106 cells/ml, dosage: 20 ml/day) improved soil nutrients and salinization indicators. Specifically, the combination of Tribonema sp. and shell powder (HB) reduced electrical conductivity (EC) by 33.7% and significantly increased the Ca2+ content by 59.4%; Tribonema sp. and Bacillus sp. (HY) improved the effects of available phosphorous (AP), DOC, DON, NH4+-N, NO3−-N, and Mg2+ in the soil by 27.4%, 231.3%, 403.4%, 125.2%, 215.6%, and 73.4%, respectively. Microalgae-based fertilizers alter the abundance of soil bacteria and fungi, causing beneficial bacteria such as Thermonaerobaculia, Subgroup_10, Sordariomycetes, and Microascaceae to increase, while pathogenic bacteria like Pseudomonas, Togniniaceae, and Phaeoacremonium decreased. Combining microalgae with agroforestry wastes as a biofertilizer is promising to improve the microbial community structure of the soil with continuous cropping, which will aid in the increase of tomato production and promote green agricultural development.https://www.frontiersin.org/articles/10.3389/fpls.2024.1461945/fullTribonema sp.microalgae-based biofertilizersagroforestry wastesoil physicochemical characteristicssoil microbial functions
spellingShingle Xiaotong Song
Jiayi Liu
Yanzhang Feng
Chengxu Zhou
Xiaohui Li
Xiaojun Yan
Roger Ruan
Pengfei Cheng
Microalgae-based biofertilizers improve fertility and microbial community structures in the soil of potted tomato
Frontiers in Plant Science
Tribonema sp.
microalgae-based biofertilizers
agroforestry waste
soil physicochemical characteristics
soil microbial functions
title Microalgae-based biofertilizers improve fertility and microbial community structures in the soil of potted tomato
title_full Microalgae-based biofertilizers improve fertility and microbial community structures in the soil of potted tomato
title_fullStr Microalgae-based biofertilizers improve fertility and microbial community structures in the soil of potted tomato
title_full_unstemmed Microalgae-based biofertilizers improve fertility and microbial community structures in the soil of potted tomato
title_short Microalgae-based biofertilizers improve fertility and microbial community structures in the soil of potted tomato
title_sort microalgae based biofertilizers improve fertility and microbial community structures in the soil of potted tomato
topic Tribonema sp.
microalgae-based biofertilizers
agroforestry waste
soil physicochemical characteristics
soil microbial functions
url https://www.frontiersin.org/articles/10.3389/fpls.2024.1461945/full
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