National Root Crops Research Institute

National Root Crops Research Institute

The National Root Crops Research Institute, Umudike, Abia State is an agricultural research institute in Nigeria. Its origins can be traced back to an experimental farm established at Moor Plantation, Ibadan on January 1, 1923 by the Nigerian Department of Agriculture. Derived from Wikipedia licensed CC-BY-SA.

Open Access statistics for National Root Crops Research Institute, Nigeria, covering academic research published from 2000 to 2025. Read More.


Open Access Percentage

83%


Total
Publications

580


Total Open
Publications

483


Total
Citations

10K


Open Access
Percentage

83%


Total
Publications

580


Total Open
Publications

483


Total
Citations

10K

Wikipedia

Website

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Breakdown

47% 30% 6% 17%

Publisher Open

47%

Both

30%

Other Platform Open

6%

Closed

17%

Percentage of Open Access over time

0%10%20%30%40%50%60%70%80%90%100%
20002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025

Publisher Open

Both

Other Platform Open

Closed

Volume of Open Access over time

0510152025303540455055Total Publications
20002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025

Open

Closed

Publisher Open

34%OA Journal

OA Journal 34%

153

Hybrid 34%

151

No Guarantees 32%

142

Other Platform Open

Institution 78%

162

Domain 44%

91

Other Internet 15%

31

Preprint 8%

16

Public 2%

5

Other Platform Locations

Name

Platform Type

Publications

doaj.org OAI-PMH Repository
Institution
97
PubMed Central
Domain
95
CGIAR
Institution
66
DOI
Other Internet
24
Le Centre pour la Communication Scientifique Directe - HAL - Diderot
Institution
19
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
Institution
16
International Food Policy Research Institute
Institution
12
bioRxiv
Preprint
9
Unknown Repository
Other Internet
7
Europe PMC
Domain
6
1 / 5

Data updated 12 August 2026

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