Research status on green manure based on the discipline knowledge graph

doi:10.14088/j.cnki.issn0439-8114.2022.05.001

Abstract

Abstract: In order to provided theoretical reference for researchers to track domestic and international research frontiers, grasp the research direction, the foreign literature of green manure from 1985 to 2020 were visually analyzed based on Web of Science database.Using the bibliometric method, combined with CiteSpace and VOSviewer visual analysis technology, the knowledge graph of green manure research subjects was drawn. The results showed that the number of papers on the theme of green manure was on the rise, and the international journal with the most research papers on green manure was Agronomy journal, followed by Plant and soil and Indian journal of agricultural sciences. From the network of discipline co-occurrence, agronomy had the highest frequency of publications and the strongest influence, while environmental science had the most extensive coverage. In terms of research countries, the United States had published the most papers, followed by India, Brazil, and China. In terms of research institutions, USDA Agricultural Research Institute has published the most papers, followed by the Agriculture and Agri-Food Canada and the Chinese Academy of Agricultural Sciences. In terms of research authors, Researcher Wei-dong Cao of the Chinese Academy of Agricultural Sciences was the scholar with the most research papers in the field of green manure research and had formed a green manure research team, followed by the Ladha team in the Philippines and the Neto team in Brazil. In terms of research hotspots, green manure research focused on the fields of green manure cultivation management, improving soil fertility, nitrogen utilization, carbon emission. In particular, the team of Wei-dong Cao from the Chinese Academy of Agricultural Sciences had made remarkable achievements in improving soil fertility, nutrient utilization, carbon emission in rice fields with the green manure of Astragalus vulgaris and had a strong international influence.

Key words: green manure, CiteSpace, VOSviewer, visualization, knowledge graph

CLC Number:

S142

LI Yu-xiang, ZHONG Ju-xin, WANG Lei, JIANG Yun-wei, BIN Huan-jun, LU Bing-qiang, MO Yong-cheng, LI Zhong-yi. Research status on green manure based on the discipline knowledge graph[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(5): 5-6.

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