Long-Term Nitrogen Fertilization Increases Soil Organic Carbon and Wheat Yields on Purple Soil in China.

Jasim Iqbal, Zhiyuan Yao, Syed Turab Raza, Hassan Iqbal, Bo Zhu

Abstract read

In one paragraph

Article in Plants (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing papers in PubMed

–field-weighted citation impact

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

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.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

Rice Cultivation Duration Drives Soil Organic Carbon Stabilization in Saline-Alkaline Paddy Soils via Mineral-Associated Organic Carbon Accumulation and Biological Pathways.Biology · 2026
Article

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

5 authors.

Jasim IqbalKey Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China.ORCID 0000-0001-8242-1383

Zhiyuan YaoKey Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China.

Syed Turab RazaKey Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China.

Hassan IqbalState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China.ORCID 0000-0001-5538-1072

Bo ZhuKey Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China.ORCID 0000-0002-7575-1701

Funding

Chinese Academy of Sciences 42007100NSFC-Sichuan Joint Fund U20A20107

6 · The paper itself

Abstract

Synthetic nitrogen (N) fertilization is essential for global food security, but often over-applied, causing environmental pollution. Identifying the optimal N application rate that maximizes crop productivity while enhancing key soil properties remains essential for sustainable agriculture. Three treatments from a 21-year field experiment conducted on purple soil in the Sichuan Basin, China, were studied: unfertilized control (CK), moderate synthetic N application (NPK; 130 kg ha

Indexed as

environmental pollutionnutrient cyclingsoil fertilitysoil organic carbonwheat production

Identifiers

PMID41012018

DOI10.3390/plants14182866

PMCPMC12473386

What OpenQuestion holds

Textmetadata

LicenceCC BY

Read underepoch 390

Registered trials

None linked

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.