ArticleScientific reports2026
Impact of organic fertilizer substitution on soil quality and microbial diversity in maize ecosystems.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
Abstract
In semi-arid agricultural ecosystems, excessive chemical fertilization has led to severe soil degradation. However, the mechanism by which organic fertilizer substitution affects microbial community construction in alkaline black soil through activated carbon components remains unclear. This study conducted a field experiment in the black soil zone of Northeast China to evaluate the effectiveness of organic fertilizer (OF) substitution. Four treatments were set up: no fertilization control (CK), single application of chemical fertilizer (T0), and substitution of 25% (T25) and 50% (T50) of chemical nitrogen fertilizer with organic fertilizer. The results showed that organic fertilizer substitution significantly optimized soil pH and significantly reduced C/N ratio compared to the control group, creating a favorable environment for nutrient mineralization. It is worth noting that the carbon pool management index (CPMI) under T25 treatment reached its highest level (an increase of 135.44% compared to T0), and significantly enriched active organic carbon components, especially particulate organic carbon (POC) and easily oxidizable organic carbon (ROC). Contrary to the traditional view that higher diversity is better, organic fertilizer substitution reduces bacterial alpha diversity but induces deterministic screening of functional groups. Redundancy analysis (RDA) and Mantel test showed that specific activated carbon components drove the enrichment of nutrient cycling bacteria genera (Sphingomonas, MND1, Gemmatimonas) and saprophytic fungi (Mortierella), while significantly inhibiting pathogenic bacteria (Fusarium). Although T50 treatment limited crop productivity due to the mismatch of carbon and nitrogen supply and demand, T25 achieved the highest maize yield and nitrogen fertilizer utilization efficiency by synchronizing nutrient release with crop demand. The conclusion indicates that 25% organic fertilizer substitution is the best strategy for this region, and its mechanism for improving soil productivity is not simply to increase microbial diversity, but to drive microbial restructuring towards more efficient functional networks through activated carbon input.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.