Evidence map›Paper›PMID 36411923›Full record

ArticleHeliyon2022

Maize yield as affected by the interaction of fertilizer nitrogen and phosphorus in the Guinea savanna of Nigeria.

Abdullahi Ibrahim Tofa, Alpha Yaya Kamara, Bashir Ahmad Babaji, Kamaluddin Tijjani Aliyu, Temitope Damian Ademulegun, Jenneh Fatima Bebeley

Abstract read
In one paragraph

Article in Heliyon, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. 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

6 authors.

Abdullahi Ibrahim TofaInternational Institute of Tropical Agriculture (IITA), P.M.B. 5320, Oyo Rd., Ibadan, 200211, Nigeria.
Alpha Yaya KamaraInternational Institute of Tropical Agriculture (IITA), P.M.B. 5320, Oyo Rd., Ibadan, 200211, Nigeria.
Bashir Ahmad BabajiDepartment of Agronomy, Ahmadu Bello University, P.M.B. 1045, Zaria, 810222, Nigeria.
Kamaluddin Tijjani AliyuInternational Institute of Tropical Agriculture (IITA), P.M.B. 5320, Oyo Rd., Ibadan, 200211, Nigeria.
Temitope Damian AdemulegunInternational Institute of Tropical Agriculture (IITA), P.M.B. 5320, Oyo Rd., Ibadan, 200211, Nigeria.
Jenneh Fatima BebeleyInternational Institute of Tropical Agriculture (IITA), P.M.B. 5320, Oyo Rd., Ibadan, 200211, Nigeria.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The soils of the Nigeria savannas are particularly low in nitrogen (N) and phosphorus (P) and negatively affects maize productivity. The main objective of the study was to evaluate the interactive effect of N and P fertilizers on maize growth, grain yield, nitrogen uptake and N use efficiency. Field experiments were conducted during the 2015 and 2016 cropping seasons at Iburu in southern Guinea and Zaria in northern Guinea savanna zones of Nigeria. The treatments consisted of three levels of nitrogen (0, 60, and 120 kg N ha

Indexed as

NitrogenN × P interactionN use efficiencyPhosphorusYield

Identifiers

PMID36411923
PMCPMC9674543

What OpenQuestion holds

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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.