Evidence map›Paper›PMID 37752897›Full record

ReviewGlobal food security2023

Inorganic fertilizer use and its association with rice yield gaps in sub-Saharan Africa.

Jean-Martial Johnson, Ali Ibrahim, Elliott Ronald Dossou-Yovo, Kalimuthu Senthilkumar, Yasuhiro Tsujimoto, Hidetoshi Asai, Kazuki Saito

Abstract readReview
In one paragraph

Review in Global food security, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

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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

7 authors.

Jean-Martial JohnsonAfrica Rice Center (AfricaRice), 01 B.P. 2551, Bouaké 01, Cote d'Ivoire.
Ali IbrahimAfrica Rice Center (AfricaRice), PMB 82, 901101, Abuja, Nigeria.
Elliott Ronald Dossou-YovoAfrica Rice Center (AfricaRice), 01 B.P. 2551, Bouaké 01, Cote d'Ivoire.
Kalimuthu SenthilkumarAfrica Rice Center (AfricaRice), B.P. 1690, Antananarivo 101, Madagascar.
Yasuhiro TsujimotoJapan International Research Center for Agricultural Sciences (JIRCAS), 1-1 Ohwashi, Tsukuba, Ibaraki, 3058686, Japan.
Hidetoshi AsaiJapan International Research Center for Agricultural Sciences (JIRCAS), 1-1 Ohwashi, Tsukuba, Ibaraki, 3058686, Japan.
Kazuki SaitoAfrica Rice Center (AfricaRice), 01 B.P. 2551, Bouaké 01, Cote d'Ivoire.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Where and which countries should receive higher priority for improving inorganic fertilizer use in rice fields in sub-Saharan Africa (SSA)? This study addressed this question by assessing the spatial variation in fertilizer use and its association with rice yield and yield gap in 24 SSA countries through a systematic literature review of peer-reviewed papers, theses, and grey literature published between 1995 and 2021. The results showed a large variation in N, P, and K fertilizer application rates and rice yield and an opportunity for narrowing the yield gap by increasing N and P rates, especially in irrigated rice systems. We identified clusters of sites/countries based on nutrient input and yield and suggested research and development strategies for improving yields and optimizing nutrient use efficiencies. Further research is essential to identify the factors causing low fertilizer use and the poor association between its use and yield in rainfed systems.

Indexed as

Agroecological zoneFertilizer use efficiencyOryza spp.Partial factor productivityYield gap

Identifiers

PMID37752897
PMCPMC10518462

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.