Zinc Deficiency in Calcareous Soils: A Bibliometric Analysis from 1989 to 2024

Zinc (Zn) deficiency in crops is a global issue, particularly in plants grown in calcareous soils, where Zn is often adsorbed or precipitated by calcium carbonates. The aim of this study was to identify and quantify, through bibliometric analysis, the scientific production related to Zn deficiency in calcareous soils over the last 36 years (1989–2024). A total of 374 documents were retrieved through a search on the Web of Science (WOS) platform, specifically in the Science Citation Index Expanded (SCIE) and Social Science Citation Index (SSCI) databases. Of these, only 198 articles were directly relevant to the topic and were used for the analysis. Unidimensional and multidimensional bibliometric indicators were evaluated using Excel and VOSviewer software. The results confirm that the number of articles has increased in recent years. The most influential authors, journals, articles, institutions, and countries in this research area were identified. In addition, collaboration networks between authors and countries, as well as the predominant research topics, were determined. This study provides a comprehensive overview of this field on a global scale and serves as a useful reference for scientists interested in conducting future research on related topics.