Evidence map›Paper›PMID 41977757›Full record

ArticlePlants (Basel, Switzerland)2026

Optimizing the Soil Calcium:Magnesium Ratio Improves the Mitragynine Yield and Seedling Growth in Kratom (

Nisa Leksungnoen, Tushar Andriyas, Yongkriat Ku-Or, Suthaporn Chongdi, Pichaya Pongchaidacha, Chatchai Ngernsaengsaruay, Suwimon Uthairatsamee, Rossarin Tansawat, Kanjananat Boondum

Abstract read
In one paragraph

Article in Plants (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

9 authors.

Nisa LeksungnoenDepartment of Forest Biology, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand.ORCID 0000-0002-2059-5289
Tushar AndriyasDepartment of Environmental Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.ORCID 0009-0000-4165-7699
Yongkriat Ku-OrDepartment of Forest Biology, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand.ORCID 0000-0002-6154-7515
Suthaporn ChongdiDepartment of Forest Biology, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand.
Pichaya PongchaidachaDepartment of Food and Pharmaceutical Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
Chatchai NgernsaengsaruayDepartment of Botany, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
Suwimon UthairatsameeDepartment of Forest Biology, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand.ORCID 0000-0003-2459-8564
Rossarin TansawatDepartment of Food and Pharmaceutical Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.ORCID 0000-0001-5486-0231
Kanjananat BoondumPhanangtung Botanical Garden, Department of National Parks, Wildlife and Plant Conservation, Khuan Khanun 93110, Phatthalung, Thailand.

Funding

Narcotics Control Board 2024
6 · The paper itself

Abstract

This study investigates how soil calcium (Ca) and magnesium (Mg) supplementation influence mitragynine accumulation in

Indexed as

calcium–magnesium ratiofoliar metabolomekratommitragyninenutrient antagonismsoil amendments

Identifiers

PMID41977757
PMCPMC13074649

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.