P. A. Roger

4.2k total citations · 1 hit paper
42 papers, 2.8k citations indexed

About

P. A. Roger is a scholar working on Ecology, Environmental Chemistry and Industrial and Manufacturing Engineering. According to data from OpenAlex, P. A. Roger has authored 42 papers receiving a total of 2.8k indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Ecology, 10 papers in Environmental Chemistry and 9 papers in Industrial and Manufacturing Engineering. Recurrent topics in P. A. Roger's work include Soil Carbon and Nitrogen Dynamics (7 papers), Microbial Community Ecology and Physiology (6 papers) and Aquatic Ecosystems and Phytoplankton Dynamics (5 papers). P. A. Roger is often cited by papers focused on Soil Carbon and Nitrogen Dynamics (7 papers), Microbial Community Ecology and Physiology (6 papers) and Aquatic Ecosystems and Phytoplankton Dynamics (5 papers). P. A. Roger collaborates with scholars based in Philippines, France and United Kingdom. P. A. Roger's co-authors include Jean Le Mer, Prabhu Pingali, J. K. Ladha, Ian C. Simpson, I. F. Grant, I. Watanabe, Agnes C. Tirol, S. A. Kulasooriya, Bernard Ollivier and Bharat Patel and has published in prestigious journals such as Soil Science Society of America Journal, Plant and Soil and Field Crops Research.

In The Last Decade

P. A. Roger

41 papers receiving 2.6k 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.

Production, oxidation, emission and consumption of methane by soils: A review

2001 1.6k citations Jean Le Mer, P. A. Roger European Journal of Soil Biology profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
P. A. Roger Philippines	23	1.0k	883	830	660	582	42	2.8k
A.F.M. Meuleman Netherlands	8	1.1k 1.0×	782 0.9×	422 0.5×	454 0.7×	819 1.4×	10	2.5k
Dale W. Cole United States	30	691 0.7×	1.1k 1.2×	838 1.0×	527 0.8×	381 0.7×	64	2.4k
Arthur E. Linkins United States	29	1.3k 1.3×	1.2k 1.4×	592 0.7×	243 0.4×	1.0k 1.8×	56	3.1k
P. Bottner France	28	1.2k 1.2×	2.3k 2.6×	522 0.6×	849 1.3×	928 1.6×	50	3.5k
J. C. Munch Germany	32	1.1k 1.1×	2.1k 2.4×	965 1.2×	479 0.7×	1.1k 1.8×	71	4.1k
Jean‐Luc Chotte France	31	1.2k 1.2×	2.1k 2.4×	597 0.7×	548 0.8×	858 1.5×	88	3.9k
Edward F. Redente United States	29	952 0.9×	676 0.8×	416 0.5×	322 0.5×	843 1.4×	76	2.4k
Dazhi Wen China	29	782 0.8×	1.5k 1.7×	657 0.8×	483 0.7×	918 1.6×	77	2.9k
Lydie Chapuis‐Lardy France	25	834 0.8×	1.5k 1.7×	557 0.7×	489 0.7×	600 1.0×	69	2.8k
A. Ghani New Zealand	21	1.2k 1.2×	2.3k 2.6×	874 1.1×	269 0.4×	804 1.4×	42	3.6k

Countries citing papers authored by P. A. Roger

Since Specialization

Citations

This map shows the geographic impact of P. A. Roger'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 P. A. Roger with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P. A. Roger more than expected).

Fields of papers citing papers by P. A. Roger

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P. A. Roger. 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 P. A. Roger. The network helps show where P. A. Roger may publish in the future.

Co-authorship network of co-authors of P. A. Roger

This figure shows the co-authorship network connecting the top 25 collaborators of P. A. Roger. A scholar is included among the top collaborators of P. A. Roger 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 P. A. Roger. P. A. Roger 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.

Roger, P. A., Jean‐Louis Garcia, Marc Labat, & Sévastianos Roussos. (1999). Les recherches à l'IRD sur la dépollution et la valorisation de déchets agricoles et agro-industriels. 1 indexed citations

2.

Ollivier, Bernard, et al.. (1998). Evidence and quantification of thiosulfate reducers unable to reduce sulfate in ricefield soils. European Journal of Soil Biology. 34(2). 69–74. 9 indexed citations

3.

Mer, Jean Le, et al.. (1997). Enumeration of methanotrophic bacteria in ricefield soils by plating and MPN techniques: a critical approach. European Journal of Soil Biology. 33(1). 41–51. 15 indexed citations

4.

Pingali, Prabhu & P. A. Roger. (1995). Impact of Pesticides on Farmer Health and the Rice Environment. Digital Library Of The Commons Repository (Indiana University). 189 indexed citations

5.

Roger, P. A.. (1995). Biological N2-fixation and its management in wetland rice cultivation. Nutrient Cycling in Agroecosystems. 42(1-3). 261–276. 22 indexed citations

6.

Roger, P. A. & S. I. Bhuiyan. (1995). Behavior of Pesticides in Rice-Based Agroecosystems: A Review. 111–148. 8 indexed citations

7.

Simpson, Ian C., et al.. (1994). Effects of nitrogen fertiliser and pesticide management on floodwater ecology in a wetland ricefield. Biology and Fertility of Soils. 18(3). 219–227. 18 indexed citations

8.

Roger, P. A., et al.. (1994). Impact of pesticides on soil and water microflora and fauna in wetland ricefields. 4 indexed citations

9.

Simpson, Ian C., et al.. (1994). Effects of nitrogen fertilizer and pesticide management on floodwater ecology in a wetland ricefield. Biology and Fertility of Soils. 17(2). 138–146. 36 indexed citations

10.

Simpson, Ian C., et al.. (1994). Effects of nitrogen fertilizer and pesticide management on floodwater ecology in a wetland ricefield. Biology and Fertility of Soils. 17(2). 129–137. 30 indexed citations

11.

Roger, P. A., et al.. (1992). Biofertilizer germplasm collections at IRRI.. 66. 24 indexed citations

12.

Roger, P. A., et al.. (1991). The IRRI blue-green algae collection and computerized information on the strains available for distribution. Journal of Applied Phycology. 3(4). 375–376. 1 indexed citations

13.

Muirhead, W. A., et al.. (1989). Effect of algicides on urea fertilizer efficiency in transplanted rice. Nutrient Cycling in Agroecosystems. 21(2). 95–107. 5 indexed citations

14.

Roger, P. A., et al.. (1987). The abundance of heterocystous blue-green algae in rice soils and inocula used for application in rice fields. Biology and Fertility of Soils. 5(2). 41 indexed citations

15.

Fillery, I. R. P., P. A. Roger, & S.K. De Datta. (1986). Ammonia Volatilization from Nitrogen Sources Applied to Rice Fields: II. Floodwater Properties and Submerged Photosynthetic Biomass. Soil Science Society of America Journal. 50(1). 86–91. 25 indexed citations

16.

Roger, P. A., et al.. (1986). Chemical composition of cultures and natural samples of N2-fixing blue-green algae from rice fields. Biology and Fertility of Soils. 2(3). 33 indexed citations

17.

Ventura, Wilbur, et al.. (1984). Estimation of the nitrogen balance for irrigated rice and the contribution of phototrophic nitrogen fixation. Field Crops Research. 9. 17–27. 39 indexed citations

18.

Roger, P. A., Agnes C. Tirol, Ian Grant, & I. Watanabe. (1982). Effect of surface application of straw on phototropic nitrogen fixation. 7(3). 16–17. 5 indexed citations

19.

Tirol, Agnes C., P. A. Roger, & Iwao Watanabe. (1982). Fate of nitrogen from a blue-green alga in a flooded rice soil. Soil Science & Plant Nutrition. 28(4). 559–569. 25 indexed citations

20.

Kulasooriya, S. A., P. A. Roger, Wilfredo L. Barraquio, & I. Watanabe. (1981). Epiphytic nitrogen fixation on deepwater rice. Soil Science & Plant Nutrition. 27(1). 19–27. 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.

Explore authors with similar magnitude of impact