Evidence map›Paper›PMID 42067790›Full record

ArticleBMC plant biology2026

Regulation of rhizosphere bacterial communities and physiological phenotypes in maize by biochar under deficit irrigation.

Xiaomin Zhang, Wei Yang, Dongliang Zhang, Yuting Shi, Shaopan Xia, Liping Wang, Xianyue Li, Ruxin Zhang, Zhongyi Qu

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
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0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Xiaomin ZhangCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China.
Wei YangCollege of Grassland Science, Inner Mongolia Agricultural University, Hohhot, 010010, China. yang.wei@imau.edu.cn.
Dongliang ZhangCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China.
Yuting ShiCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China.
Shaopan XiaCollege of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
Liping WangCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China.
Xianyue LiCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China.
Ruxin ZhangCollege of Grassland Science, Inner Mongolia Agricultural University, Hohhot, 010010, China.
Zhongyi QuCollege of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China. quzhongyi@imau.edu.cn.

Funding

Basic Research Funds of Universities Supported by Inner Mongolia Autonomous Region BR22-13-12Basic Research Funds of Universities Supported by Inner Mongolia Autonomous Region BR250105Inner Mongolia Autonomous Region Science and Technology Leading Talent Team 2022LJRC0007National Key Research and Development Program of China 2021YFC3201202National Natural Science Foundation of China 52279037National Natural Science Foundation of China U24A20179Natural Science Foundation of Inner Mongolia Autonomous Region 2025YQ010The "Challenge and Response" project in the agricultural and animal husbandry sector of Ordos City EEDS-2024-JG-GD-01
6 · The paper itself

Abstract

backgroundBiochar application in cropland can alleviate water deficiency and promote maize growth, but its underlying physiological mechanisms remain unclear. This study conducted pot experiments with 2 × 3 factorial combinations of biochar dosages (0 (Non-B), 1% (B-applied)) and irrigation regimes (well-watered (WW), moderate-deficit (MD), and severe-deficit (SD)), forming 6 treatments (BWW, WW, BMD, MD, BSD, and SD) to explore key driving factors and physiological mechanisms of biochar promoting maize growth.

resultsBiochar increased soil organic matter, available P and available K contents, enhanced rhizosphere bacterial diversity, and raised the abundance of bacteria such as Streptomyces. These changes reshaped plant internal physiological responses, elevating indole acetic acid and abscisic acid while preserving photosystem II integrity (higher maximum photochemical quantum efficiency and potential photochemical activity of photosystem II). Consequently, compared to MD and SD treatments, biochar (BMD and BSD) sustained higher gas exchange, increasing by 9% and 7%, and g by 23% and 50%, respectively. This ultimately promoted whole-plant biomass accumulation, increasing above-ground biomass by 26% and 31%, while decreasing the root-shoot ratio by 16% and 20%, respectively.

conclusionsBiochar mitigates the adverse effects of deficit irrigation on maize growth by regulating bacterial community structure, promoting endogenous hormone synthesis, and improving photosynthetic characteristics, with stronger effect under severe-deficit.

Indexed as

Agricultural IrrigationCharcoalRhizosphereSoil MicrobiologyZea maysBiomassPhenotypePlant RootsbiocharCharcoalBiocharLeaf gas exchangeRoot growthSoil bacteriaWater-saving irrigation

Identifiers

PMID42067790
PMCPMC13281442

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.