Dan C. Olk

1.4k total citations
34 papers, 1.0k citations indexed

About

Dan C. Olk is a scholar working on Soil Science, Plant Science and Ecology. According to data from OpenAlex, Dan C. Olk has authored 34 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Soil Science, 13 papers in Plant Science and 8 papers in Ecology. Recurrent topics in Dan C. Olk's work include Soil Carbon and Nitrogen Dynamics (17 papers), Soil and Water Nutrient Dynamics (5 papers) and Rice Cultivation and Yield Improvement (5 papers). Dan C. Olk is often cited by papers focused on Soil Carbon and Nitrogen Dynamics (17 papers), Soil and Water Nutrient Dynamics (5 papers) and Rice Cultivation and Yield Improvement (5 papers). Dan C. Olk collaborates with scholars based in United States, China and Australia. Dan C. Olk's co-authors include Jingdong Mao, G. J. D. Kirk, Zhongqi He, Klaus Schmidt‐Rohr, Hailin Zhang, Ranae Dietzel, S. Carolina Córdova, Wenying Chu, Michael J. Castellano and Kevin E. Mueller and has published in prestigious journals such as PLoS ONE, The Science of The Total Environment and Journal of Agricultural and Food Chemistry.

In The Last Decade

Dan C. Olk

33 papers receiving 1.0k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Dan C. Olk United States	16	605	323	246	163	98	34	1.0k
Michael Stemmer Austria	18	715 1.2×	265 0.8×	379 1.5×	267 1.6×	113 1.2×	25	1.4k
Zhian Li China	18	651 1.1×	490 1.5×	339 1.4×	274 1.7×	74 0.8×	39	1.3k
Gerald Jandl Germany	15	755 1.2×	205 0.6×	371 1.5×	236 1.4×	127 1.3×	26	1.2k
Xiangping Tan China	20	444 0.7×	262 0.8×	251 1.0×	171 1.0×	60 0.6×	44	974
Paola Gioacchini Italy	19	533 0.9×	447 1.4×	145 0.6×	180 1.1×	81 0.8×	52	1.1k
Sandra Spielvogel Germany	23	782 1.3×	373 1.2×	462 1.9×	197 1.2×	98 1.0×	57	1.4k
Chaoqun Wang China	16	527 0.9×	342 1.1×	295 1.2×	106 0.7×	48 0.5×	49	1.0k
Richard Öhlinger Austria	5	569 0.9×	334 1.0×	256 1.0×	175 1.1×	46 0.5×	6	1.1k
Robert O. Miller United States	15	467 0.8×	474 1.5×	151 0.6×	202 1.2×	58 0.6×	34	1.3k

Countries citing papers authored by Dan C. Olk

Since Specialization

Citations

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

Fields of papers citing papers by Dan C. Olk

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Dan C. Olk. 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 Dan C. Olk. The network helps show where Dan C. Olk may publish in the future.

Co-authorship network of co-authors of Dan C. Olk

This figure shows the co-authorship network connecting the top 25 collaborators of Dan C. Olk. A scholar is included among the top collaborators of Dan C. Olk 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 Dan C. Olk. Dan C. Olk is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Olk, Dan C., et al.. (2023). Variable humic product effects on maize structural biochemistry across annual weather patterns and soil types in two Iowa (U.S.A.) production fields. Frontiers in Plant Science. 13. 1058141–1058141. 4 indexed citations

Li, Dandan, Bingzi Zhao, Dan C. Olk, & Jiabao Zhang. (2020). Soil texture and straw type modulate the chemical structure of residues during four-year decomposition by regulating bacterial and fungal communities. Applied Soil Ecology. 155. 103664–103664. 15 indexed citations

Lenssen, Andrew W., Dan C. Olk, & Dana L. Dinnes. (2019). Application of a Formulated Humic Product Can Increase Soybean Yield. Crop Forage & Turfgrass Management. 5(1). 180053–180053. 10 indexed citations

Castellano, Michael J., Hanna Poffenbarger, C. A. Cambardella, et al.. (2017). Evaluation of carbon saturation across gradients of cropping systems diversity and soil depth. EGUGA. 10357. 1 indexed citations

Zhao, Bingzi, Wenying Chu, Jingdong Mao, et al.. (2017). Altered humin compositions under organic and inorganic fertilization on an intensively cultivated sandy loam soil. The Science of The Total Environment. 601-602. 356–364. 19 indexed citations

Mao, Jingdong, Xiaoyan Cao, Dan C. Olk, Wenying Chu, & Klaus Schmidt‐Rohr. (2017). Advanced solid-state NMR spectroscopy of natural organic matter. Progress in Nuclear Magnetic Resonance Spectroscopy. 100. 17–51. 125 indexed citations

He, Zhongqi, Hailin Zhang, & Dan C. Olk. (2015). Chemical Composition of Defatted Cottonseed and Soy Meal Products. PLoS ONE. 10(6). e0129933–e0129933. 86 indexed citations

He, Zhongqi, Hailin Zhang, Dan C. Olk, et al.. (2014). Protein and Fiber Profiles of Cottonseed from Upland Cotton with Different Fertilizations. Modern Applied Science. 8(4). 22 indexed citations

Creamer, Courtney A., et al.. (2012). Changes to soil organic N dynamics with leguminous woody plant encroachment into grasslands. Biogeochemistry. 113(1-3). 307–321. 32 indexed citations

10.

Anders, Merle M., et al.. (2012). Rice Rotation and Tillage Effects on Soil Aggregation and Aggregate Carbon and Nitrogen Dynamics. Soil Science Society of America Journal. 76(3). 994–1004. 15 indexed citations

11.

Abdelrahman, Hamada, Dan C. Olk, Claudio Cocozza, & Teodoro Miano. (2012). Fractionation and characterization of soil organic carbon during transition to organic farming. EGUGA. 10727. 2 indexed citations

12.

Mao, Jingdong, Antonio J. Palazzo, Dan C. Olk, et al.. (2010). Chemical Structure of Soil Organic Matter in Slickspots as Investigated by Advanced Solid-State NMR. Soil Science. 175(7). 329–338. 11 indexed citations

13.

Mao, Jingdong, Dan C. Olk, Xiaowen Fang, Zhongqi He, & Klaus Schmidt‐Rohr. (2008). Influence of animal manure application on the chemical structures of soil organic matter as investigated by advanced solid-state NMR and FT-IR spectroscopy. Geoderma. 146(1-2). 353–362. 118 indexed citations

14.

Mao, Jingdong, A. Ajakaiye, Yeqing Lan, et al.. (2007). Chemical Structures of Manure from Conventional and Phytase Transgenic Pigs Investigated by Advanced Solid-State NMR Spectroscopy. Journal of Agricultural and Food Chemistry. 56(6). 2131–2138. 13 indexed citations

15.

Mitra, Sudip, M. S. Aulakh, Reiner Waßmann, & Dan C. Olk. (2005). Triggering of Methane Production in Rice Soils by Root Exudates. Soil Science Society of America Journal. 69(2). 563–570. 21 indexed citations

16.

Olk, Dan C., K.G. Cassman, Merle M. Anders, et al.. (2005). Does anaerobic decomposition of crop residues impair soil nitrogen cycling and yield trends in lowland rice. 374–377.

17.

Powlson, D. S., Dan C. Olk, & G. J. D. Kirk. (2000). Long-term soil organic matter dynamics. Rothamsted Repository (Rothamsted Repository). 18 indexed citations

18.

Kirk, G. J. D. & Dan C. Olk. (2000). Carbon and nitrogen dynamics in flooded soils. 67 indexed citations

19.

Olk, Dan C., N. Senesi, & G. J. D. Kirk. (2000). Properties of chemically extracted soil organic matter in intensively cropped lowland rice soils.. 65–87. 5 indexed citations

20.

Kirk, G. J. D., Herbert J. Kronzucker, & Dan C. Olk. (2000). Nitrogen uptake by rice roots.. 147–162. 6 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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