Evidence map›Paper›PMID 39840354›Full record

SynthesisFrontiers in plant science2024

A meta-analysis of the effects of nitrogen fertilizer application on maize (

Yuanbo Jiang, Haiyan Li, Wenqiong Ma, Wenjing Yu, Junxian Chen, Yalin Gao, Guangping Qi, Minhua Yin, Yanxia Kang, Yanlin Ma and 2 more

Abstract readSystematic Review
In one paragraph

Synthesis in Frontiers in plant science, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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

12 authors.

Yuanbo JiangCollege of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, China.
Haiyan LiCollege of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, China.
Wenqiong MaCollege of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, China.
Wenjing YuCollege of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, China.
Junxian ChenCollege of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, China.
Yalin GaoCollege of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, China.
Guangping QiCollege of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, China.
Minhua YinCollege of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, China.
Yanxia KangCollege of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, China.
Yanlin MaCollege of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, China.
Jinghai WangCollege of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, China.
Liting XuCollege of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nitrogen fertilizer application is an important method for the production of high-quality maize. However, nitrogen fertilizer addition patterns vary according to regional climate, field management practices, and soil conditions. In this study, a meta-analysis was used to quantify the yield effects of nitrogen addition on maize, and meta-regression analysis and a random forest model were used to study the main factors affecting the yield effects of nitrogen addition on maize. The results showed that nitrogen addition significantly increased maize yield by 50.26%-55.72%, and a fluctuating increasing trend was observed with the advancement of the experimental year. The increase in maize yield upon nitrogen addition was the highest in Gansu Province, and showed a decreasing trend with the rise in average annual temperature, but did not change significantly with the average annual precipitation. Among the field management factors, the increase in maize yield was better with the variety Qiangsheng 51, topdressing at the jointing and tasseling stages (JS, TS), nitrogen application rate of 175-225 kg·ha

Indexed as

influencing factormaize yieldmeta-analysisnitrogen fertilizerNorthwest China

Identifiers

PMID39840354
PMCPMC11747158

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.