Chad J. Penn

4.7k total citations · 1 hit paper
121 papers, 3.4k citations indexed

About

Chad J. Penn is a scholar working on Environmental Chemistry, Industrial and Manufacturing Engineering and Soil Science. According to data from OpenAlex, Chad J. Penn has authored 121 papers receiving a total of 3.4k indexed citations (citations by other indexed papers that have themselves been cited), including 76 papers in Environmental Chemistry, 49 papers in Industrial and Manufacturing Engineering and 38 papers in Soil Science. Recurrent topics in Chad J. Penn's work include Soil and Water Nutrient Dynamics (75 papers), Phosphorus and nutrient management (34 papers) and Constructed Wetlands for Wastewater Treatment (27 papers). Chad J. Penn is often cited by papers focused on Soil and Water Nutrient Dynamics (75 papers), Phosphorus and nutrient management (34 papers) and Constructed Wetlands for Wastewater Treatment (27 papers). Chad J. Penn collaborates with scholars based in United States, Brazil and Australia. Chad J. Penn's co-authors include James J. Camberato, Garey A. Fox, Joshua M. McGrath, Jason G. Warren, Ray B. Bryant, Hailin Zhang, Mark R. Williams, J. T. Sims, Mark E. Payton and W. R. Raun and has published in prestigious journals such as SHILAP Revista de lepidopterología, Environmental Science & Technology and Water Research.

In The Last Decade

Chad J. Penn

115 papers receiving 3.2k citations

Hit Papers

A Critical Review on Soil Chemical Processes that Control... 2019 2026 2021 2023 2019 200 400 600
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.

  1. A Critical Review on Soil Chemical Processes that Control How Soil pH Affects Phosphorus Availability to Plants
    2019 628 citations Chad J. Penn, James J. Camberato Agriculture profile →

Peers

Chad J. Penn
Gitte Holton Rubæk Denmark
Eila Turtola Finland
Limei Zhai China
Don Flaten Canada
Paul J. A. Withers United Kingdom
Xu Zhao China
C. Wayne Honeycutt United States
Gilbert C. Sigua United States
O.F. Schoumans Netherlands
B. C. Joern United States
Gitte Holton Rubæk Denmark
Chad J. Penn
Citations per year, relative to Chad J. Penn Chad J. Penn (= 1×) peers Gitte Holton Rubæk

Countries citing papers authored by Chad J. Penn

Since Specialization
Citations

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

Fields of papers citing papers by Chad J. Penn

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Chad J. Penn. 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 Chad J. Penn. The network helps show where Chad J. Penn may publish in the future.

Co-authorship network of co-authors of Chad J. Penn

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

All Works

20 of 20 papers shown
1.
Penn, Chad J., et al.. (2025). Phosphorus Utilization Efficiency Among Corn Era Hybrids Released over Seventy-Five Years. Agronomy. 15(6). 1407–1407.
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Reinhart, Kurt O., Lance T. Vermeire, Chad J. Penn, & Ylva Lekberg. (2024). Experimental evidence that poor soil phosphorus (P) solubility typical of drylands due to calcium co-precipitation favors autonomous plant P acquisition over collaboration with mycorrhizal fungi. Soil Biology and Biochemistry. 199. 109605–109605. 8 indexed citations
4.
Penn, Chad J., et al.. (2024). The Timing of Phosphorus Availability to Corn: What Growth Stages Are Most Critical for Maximizing Yield?. Agronomy. 14(11). 2731–2731. 4 indexed citations
5.
Osterholz, William R., et al.. (2024). New phosphorus losses via tile drainage depend on fertilizer form, placement, and timing. Journal of Environmental Quality. 53(2). 241–252. 6 indexed citations
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Penn, Chad J., et al.. (2023). Phosphorous Fractions in Weathered Tropical Soils After Application of Conventional and Alternative P Fertilizers. Journal of soil science and plant nutrition. 23(4). 5621–5631. 2 indexed citations
8.
Zhang, Kai, et al.. (2023). Phosphate removal by low-cost industrial byproduct iron shavings: Efficacy and longevity. Water Research. 246. 120745–120745. 15 indexed citations
9.
Penn, Chad J., et al.. (2022). Desorption Kinetics of Legacy Soil Phosphorus: Implications for Non-Point Transport and Plant Uptake. Soil Systems. 6(1). 6–6. 13 indexed citations
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Penn, Chad J., et al.. (2021). A Research Method for Semi-Automated Large-Scale Cultivation of Maize to Full Maturity in an Artificial Environment. Agronomy. 11(10). 1898–1898. 5 indexed citations
12.
Guo, Tian, Laura T. Johnson, Chad J. Penn, et al.. (2020). Less Agricultural Phosphorus Applied in 2019 Led to Less Dissolved Phosphorus Transported to Lake Erie. Environmental Science & Technology. 55(1). 283–291. 47 indexed citations
13.
Penn, Chad J. & James J. Camberato. (2019). A Critical Review on Soil Chemical Processes that Control How Soil pH Affects Phosphorus Availability to Plants. Agriculture. 9(6). 120–120. 628 indexed citations breakdown →
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Penn, Chad J., et al.. (2017). A Review of Phosphorus Removal Structures: How to Assess and Compare Their Performance. Water Resources Research. 9(8). 2 indexed citations
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Cole, Janet C., et al.. (2013). Nitrogen Mineralization from Canola Meal or Cottonseed Meal with or without Soapstock. HortScience. 48(7). 891–896. 3 indexed citations
19.
Penn, Chad J., Ray B. Bryant, Michael P. Callahan, & Joshua M. McGrath. (2011). Use of Industrial By-products to Sorb and Retain Phosphorus. Communications in Soil Science and Plant Analysis. 42(6). 633–644. 56 indexed citations
20.
Wei, Zebin, et al.. (2011). PHYTOEXTRACTION OF HEAVY METALS FROM CONTAMINATED SOIL BY CO-CROPPING WITH CHELATOR APPLICATION AND ASSESSMENT OF ASSOCIATED LEACHING RISK. International Journal of Phytoremediation. 13(7). 717–729. 29 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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