P. H. Williams

3.0k total citations
57 papers, 1.4k citations indexed

About

P. H. Williams is a scholar working on Soil Science, Environmental Chemistry and Agronomy and Crop Science. According to data from OpenAlex, P. H. Williams has authored 57 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Soil Science, 34 papers in Environmental Chemistry and 19 papers in Agronomy and Crop Science. Recurrent topics in P. H. Williams's work include Soil Carbon and Nitrogen Dynamics (34 papers), Soil and Water Nutrient Dynamics (34 papers) and Ruminant Nutrition and Digestive Physiology (18 papers). P. H. Williams is often cited by papers focused on Soil Carbon and Nitrogen Dynamics (34 papers), Soil and Water Nutrient Dynamics (34 papers) and Ruminant Nutrition and Digestive Physiology (18 papers). P. H. Williams collaborates with scholars based in New Zealand, United States and Belgium. P. H. Williams's co-authors include Richard Haynes, R. J. Haynes, G. S. Francis, P. M. Fraser, R. J. Haynes, Robert R. Sherlock, P. E. H. Gregg, M. J. Hedley, S. C. Jarvis and E. R. Dixon and has published in prestigious journals such as Soil Biology and Biochemistry, Plant and Soil and Agriculture Ecosystems & Environment.

In The Last Decade

P. H. Williams

57 papers receiving 1.2k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
P. H. Williams New Zealand 22 915 735 322 312 267 57 1.4k
P. B. S. Hart New Zealand 15 976 1.1× 489 0.7× 280 0.9× 220 0.7× 326 1.2× 27 1.3k
D. R. Lockyer China 27 863 0.9× 916 1.2× 320 1.0× 633 2.0× 423 1.6× 40 1.9k
Curtis A. Reule United States 15 1.3k 1.5× 619 0.8× 324 1.0× 514 1.6× 558 2.1× 19 1.7k
W. R. Cookson Australia 17 1.1k 1.2× 479 0.7× 524 1.6× 176 0.6× 390 1.5× 20 1.5k
GJ Blair Australia 16 1.7k 1.9× 531 0.7× 459 1.4× 417 1.3× 585 2.2× 55 2.3k
E. A. Garwood China 17 632 0.7× 663 0.9× 201 0.6× 403 1.3× 240 0.9× 29 1.2k
P.Roger Ball New Zealand 14 639 0.7× 638 0.9× 253 0.8× 264 0.8× 105 0.4× 20 991
Christina Tonitto United States 12 1.0k 1.1× 979 1.3× 493 1.5× 435 1.4× 408 1.5× 17 2.0k
Moira Dexter New Zealand 10 848 0.9× 413 0.6× 363 1.1× 143 0.5× 185 0.7× 14 1.2k
C. L. Douglas United States 18 1.2k 1.3× 469 0.6× 303 0.9× 385 1.2× 503 1.9× 47 1.7k

Countries citing papers authored by P. H. Williams

Since Specialization
Citations

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

Fields of papers citing papers by P. H. Williams

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of P. H. Williams

This figure shows the co-authorship network connecting the top 25 collaborators of P. H. Williams. A scholar is included among the top collaborators of P. H. Williams 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. H. Williams. P. H. Williams 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.
Francis, G. S., et al.. (2003). Winter nitrate leaching losses from three land uses in the Pukekohe area of New Zealand. New Zealand Journal of Agricultural Research. 46(3). 215–224. 19 indexed citations
2.
Williams, P. H. & Jean Berlamont. (2002). Accounting for the spatial rainfall variability in urban modelling applications. Water Science & Technology. 45(2). 105–112. 12 indexed citations
3.
Morton, James D. & P. H. Williams. (2002). A review of pastoral research carried out on the West Coast of the South Island: 1960-2000. Proceedings of the New Zealand Grassland Association. 11–16. 1 indexed citations
4.
Weerden, Tony J. van der, Robert R. Sherlock, P. H. Williams, & Keith C. Cameron. (2000). Effect of three contrasting onion ( Allium cepa L.) production systems on nitrous oxide emissions from soil. Biology and Fertility of Soils. 31(3-4). 334–342. 20 indexed citations
5.
Francis, G. S., Richard Haynes, G. P. Sparling, D.J. Ross, & P. H. Williams. (1992). Nitrogen mineralization, nitrate leaching and crop growth following cultivation of a temporary leguminous pasture in autumn and winter. Nutrient Cycling in Agroecosystems. 33(1). 59–70. 66 indexed citations
6.
Williams, P. H., P. E. H. Gregg, & M. J. Hedley. (1990). Use of potassium bromide solutions to simulate dairy cow urine flow and retention in pasture soils. New Zealand Journal of Agricultural Research. 33(3). 489–495. 28 indexed citations
7.
Williams, P. H., P. E. H. Gregg, & M. J. Hedley. (1990). Mass balance modelling of potassium losses from grazed dairy pasture. New Zealand Journal of Agricultural Research. 33(4). 661–668. 13 indexed citations
8.
Williams, P. H., P. E. H. Gregg, & M. J. Hedley. (1990). Fate of potassium in dairy cow urine applied to intact soil cores. New Zealand Journal of Agricultural Research. 33(1). 151–158. 20 indexed citations
9.
Williams, P. H. & Richard Haynes. (1990). Influence of improved pastures and grazing animals on nutrient cycling within New Zealand soils.. New Zealand Journal of Ecology. 14. 49–57. 51 indexed citations
10.
Williams, P. H., M. J. Hedley, & P. E. H. Gregg. (1989). Uptake of potassium and nitrogen by pasture from urine‐affected soil. New Zealand Journal of Agricultural Research. 32(3). 415–421. 28 indexed citations
11.
Williams, P. H. & A. H. C. Roberts. (1988). Estimation of potassium losses from a grazed dairy farm in Taranaki. New Zealand Journal of Crop and Horticultural Science. 16(1). 23–27. 6 indexed citations
12.
Williams, P. H., M. J. Hedley, & P. E. H. Gregg. (1988). Effect of dairy cow urine on potassium adsorption by soil. New Zealand Journal of Agricultural Research. 31(4). 431–438. 3 indexed citations
13.
Morton, James D. & P. H. Williams. (1987). Phosphorus requirements of grazed pasture on pakihi and recent soils of the South Island west coast. New Zealand Journal of Crop and Horticultural Science. 15(3). 277–282. 1 indexed citations
14.
Williams, P. H. & James D. Morton. (1987). Effects of mowing interval, return of clippings, and potassium fertiliser on production and botanical composition of pasture in a mowing trial. New Zealand Journal of Crop and Horticultural Science. 15(2). 147–150. 1 indexed citations
15.
Williams, P. H., et al.. (1986). Chemical soil test prediction of pasture responses to potassium on recent soils of the South Island west coast. New Zealand Journal of Crop and Horticultural Science. 14(4). 411–415. 7 indexed citations
16.
Williams, P. H. & James D. Morton. (1985). Pasture responses to superphosphate and elemental sulphur on soils of the West Coast, South Island. New Zealand Journal of Crop and Horticultural Science. 13(4). 369–374. 5 indexed citations
17.
Williams, P. H., et al.. (1985). Assessment of the commercial application of a methyl bromide and carbon dioxide mixture for the control of grain insects.. Plant protection quarterly. 1(2). 51–56. 1 indexed citations
18.
Williams, P. H. & David J. Paterson. (1983). Response of pastures to nitrogen fertiliser applied in autumn and spring on the West Coast of South Island, New Zealand. New Zealand Journal of Crop and Horticultural Science. 11(3). 247–250. 7 indexed citations
19.
Williams, P. H., et al.. (1977). Fungicidal eradication of seedborne Phoma lingam of crucifers.. ˜The œPlant disease reporter. 61(2). 118–121. 7 indexed citations
20.
Jacobsen, Barry J. & P. H. Williams. (1970). Control of Cabbage clubroot using benomyl fungicide.. ˜The œPlant disease reporter. 54(6). 456–460. 15 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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