Evidence map›Paper›PMID 42637786›Full record

ArticleScientific data2026

African Crop Calendar: A geo-referenced dataset of crop growing seasons across diverse agro-ecological regions.

Katharina Waha, Sophie Rötzer, Koen De Vos, Uwe Grewer, Andrew Tomes, Altaaf Mechiche-Alami

Abstract read
In one paragraph

Article in Scientific data, 2026. 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.

  1. 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.

Katharina WahaCentre for Climate Resilience, University of Augsburg, Augsburg, Germany. katharina.waha@uni-a.de.ORCID http://orcid.org/0000-0002-8631-8639
Sophie RötzerCentre for Climate Resilience, University of Augsburg, Augsburg, Germany.
Koen De VosDepartment of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium.ORCID http://orcid.org/0000-0002-4607-7877
Uwe GrewerCentre for Sustainable Agricultural Systems, University of Southern Queensland, Toowoomba, Australia.
Andrew TomesEvans School Policy Analysis & Research (EPAR), Daniel J Evans School of Public Policy, University of Washington, Seattle, USA.
Altaaf Mechiche-AlamiLund University Centre for Sustainability Studies (LUCSUS), Lund University, Lund, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Large-scale agricultural household surveys provide essential data on farming households' socioeconomics, land management, and agricultural indicators, and allow detailed micro-scale comparisons while ensuring national representativeness. This study introduces cleaned, harmonised, and validated survey data describing the growing season of several hundred crops from six African countries between 2009-2019. It complements existing datasets by including geographical identifiers, facilitating the linkage with climate, soil, or Earth observation data. Collected through the LSMS-ISA program, the surveys cover crop planting and harvesting dates, anonymized field locations, and crop species grown. The data were harmonised by assigning consistent variable names, correcting inconsistencies, standardising crop names, and creating unique plot identifiers. This comprehensive dataset offers novel insights into African cropping systems and growing seasons and provides a basis for assessing drivers of shifts in growing seasons.

Identifiers

PMID42637786
PMCPMC13503825

What OpenQuestion holds

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Registered trials

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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.