R. A. Ludwig

897 total citations · 1 hit paper
34 papers, 707 citations indexed

About

R. A. Ludwig is a scholar working on Plant Science, Pollution and Soil Science. According to data from OpenAlex, R. A. Ludwig has authored 34 papers receiving a total of 707 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Plant Science, 6 papers in Pollution and 6 papers in Soil Science. Recurrent topics in R. A. Ludwig's work include Plant Disease Management Techniques (5 papers), Pesticide and Herbicide Environmental Studies (5 papers) and Plant Physiology and Cultivation Studies (3 papers). R. A. Ludwig is often cited by papers focused on Plant Disease Management Techniques (5 papers), Pesticide and Herbicide Environmental Studies (5 papers) and Plant Physiology and Cultivation Studies (3 papers). R. A. Ludwig collaborates with scholars based in Brazil, United States and Switzerland. R. A. Ludwig's co-authors include G. D. Thorn, I. V. Hall, C. H. Unwin, E. Y. Spencer, Fernando Ferrari Putti, Luís Roberto Almeida Gabriel Filho, Camila Pires Cremasco, Alexsandro Oliveira da Silva, R. G. Ross and Donald E. Munnecke and has published in prestigious journals such as SHILAP Revista de lepidopterología, Canadian Journal of Chemistry and Recueil des Travaux Chimiques des Pays-Bas.

In The Last Decade

R. A. Ludwig

31 papers receiving 567 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

The Dithiocarbamates and Related Compounds

1962 381 citations G. D. Thorn, R. A. Ludwig Medical Entomology and Zoology profile →

Peers

R. A. Ludwig

OC

PS

ONCOL

IC

CB

G. D. Thorn Canada

E. M. Meijer Netherlands

Shu‐Sheng Zhang China

H. L. Klöpping Hungary

Chiara Roberta Girelli Italy

N. I. Vasyukova Russia

Sigvard Eriksson Sweden

Elena V. Stepanova Russia

Laurie A. Reinhardt United States

Dominic P. H. M. Heuts Netherlands

G. D. Thorn Canada

R. A. Ludwig

362 ×1.4

OC

308 ×1.4

PS

149 ×1.4

ONCOL

111 ×1.3

IC

64 ×0.8

CB

Citations per year, relative to R. A. Ludwig R. A. Ludwig (= 1×) peers G. D. Thorn

Countries citing papers authored by R. A. Ludwig

Since Specialization

Citations

This map shows the geographic impact of R. A. Ludwig's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by R. A. Ludwig with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. A. Ludwig more than expected).

Fields of papers citing papers by R. A. Ludwig

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R. A. Ludwig. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by R. A. Ludwig. The network helps show where R. A. Ludwig may publish in the future.

Co-authorship network of co-authors of R. A. Ludwig

This figure shows the co-authorship network connecting the top 25 collaborators of R. A. Ludwig. A scholar is included among the top collaborators of R. A. Ludwig based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with R. A. Ludwig. R. A. Ludwig is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

1.

Ludwig, R. A., et al.. (2016). Studies on the Effect of Light on the Growth and Development of Red Clover1.

2.

Ludwig, R. A., et al.. (2014). COMPARAÇÃO ENTRE METODOLOGIAS PARA ESTIMATIVA DE VAZÃO EM CANAL DE IRRIGAÇÃO NO ARROIO CHASQUEIRO/RS. Irriga. 19(1). 94–94.

3.

Putti, Fernando Ferrari, et al.. (2013). Desenvolvimento inicial da alface (Lactuca sativa L.) irrigada com água magnetizada. Acervo Digital da Universidade Estadual Paulista (Universidade Estadual Paulista). 6(3). 83–90. 3 indexed citations

4.

Ludwig, R. A., et al.. (2013). DIMENSIONAMENTO DE SISTEMAS DE DRENAGEM ATRAVÉS DE SOFTWARE COMPUTACIONAL. SHILAP Revista de lepidopterología. 7(2). 70–76. 1 indexed citations

5.

Putti, Fernando Ferrari, et al.. (2013). HERBICIDAS INIBIDORES DO FOTOSSISTEMA II – PARTE II. SHILAP Revista de lepidopterología. 7(1). 12–22. 2 indexed citations

6.

Ludwig, R. A., et al.. (2013). Increasing the Lateral Line Length of Drip Irrigation Systems. Americanae (AECID Library). 3(3). 499–509. 1 indexed citations

7.

Ludwig, R. A., et al.. (2012). USO DA ÁGUA NA IRRIGAÇÃO. Periódico Eletrônico Fórum Ambiental da Alta Paulista.. 8(2). 1 indexed citations

8.

Putti, Fernando Ferrari, et al.. (2012). ANÁLISE DA VIABILIDADE E RENTABILIDADE DO USO DO BABAÇU PARA A PRODUÇÃO DO BIODIESEL. Periódico Eletrônico Fórum Ambiental da Alta Paulista.. 8(7). 2 indexed citations

9.

Ludwig, R. A., et al.. (2012). USINA TERMELÉTRICA A PARTIR DA CASCA DE ARROZ. Periódico Eletrônico Fórum Ambiental da Alta Paulista.. 8(7). 1 indexed citations

10.

Thorn, G. D. & R. A. Ludwig. (1962). The Dithiocarbamates and Related Compounds. Medical Entomology and Zoology. 381 indexed citations breakdown →

11.

Hall, I. V. & R. A. Ludwig. (1961). THE EFFECTS OF PHOTOPERIOD, TEMPERATURE, AND LIGHT INTENSITY ON THE GROWTH OF THE LOWBUSH BLUEBERRY (VACCINIUM ANGUSTIFOLIUM AIT.). Canadian Journal of Botany. 39(7). 1733–1739. 33 indexed citations

12.

Thorn, G. D. & R. A. Ludwig. (1960). Paper chromatography of derivatives of ethylenebis (dithiocarbamic acid). Recueil des Travaux Chimiques des Pays-Bas. 79(2). 160–163. 9 indexed citations

13.

Ludwig, R. A.. (1960). Host pathogen relationships with the tomato anthracnose disease.. 3 indexed citations

14.

Ludwig, R. A., E. Y. Spencer, & C. H. Unwin. (1960). AN ANTIFUNGAL FACTOR FROM BARLEY OF POSSIBLE SIGNIFICANCE IN DISEASE RESISTANCE. Canadian Journal of Botany. 38(1). 21–29. 31 indexed citations

15.

Thorn, G. D. & R. A. Ludwig. (1958). S-ALKYL-2,5-DIMERCAPTO-1,3,4-THIADIAZOLES. Canadian Journal of Botany. 36(3). 389–392. 10 indexed citations

16.

Ludwig, R. A. & G. D. Thorn. (1958). THE INTERACTION BETWEEN DISODIUM ETHYLENEBISDITHIOCARBAMATE (NABAM) AND MANGANESE. Canadian Journal of Botany. 36(4). 473–482. 13 indexed citations

17.

Ludwig, R. A.. (1957). TOXIN PRODUCTION BY HELMINTHOSPORIUM SATIVUM P.K. & B. AND ITS SIGNIFICANCE IN DISEASE DEVELOPMENT. Canadian Journal of Botany. 35(3). 291–303. 38 indexed citations

18.

Ludwig, R. A., et al.. (1956). LABORATORY STUDIES ON THE EVALUATION AND ACTIVITY OF ANTIFUNGAL FUMIGANTS. Canadian Journal of Botany. 34(1). 37–43. 4 indexed citations

19.

Ludwig, R. A., et al.. (1956). STUDIES ON THE SEEDLING DISEASE OF BARLEY CAUSED BY HELMINTHOSPORIUM SATIVUM P.K. & B.. Canadian Journal of Botany. 34(4). 653–673. 20 indexed citations

20.

Thorn, G. D. & R. A. Ludwig. (1954). THE AERATION PRODUCTS OF DISODIUM ETHYLENEBISDITHIOCARBAMATE. Canadian Journal of Chemistry. 32(9). 872–879. 21 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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