KR Helyar

603 total citations
13 papers, 434 citations indexed

About

KR Helyar is a scholar working on Soil Science, Forestry and Environmental Chemistry. According to data from OpenAlex, KR Helyar has authored 13 papers receiving a total of 434 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Soil Science, 6 papers in Forestry and 6 papers in Environmental Chemistry. Recurrent topics in KR Helyar's work include Soil Carbon and Nitrogen Dynamics (9 papers), Pasture and Agricultural Systems (6 papers) and Soil and Water Nutrient Dynamics (6 papers). KR Helyar is often cited by papers focused on Soil Carbon and Nitrogen Dynamics (9 papers), Pasture and Agricultural Systems (6 papers) and Soil and Water Nutrient Dynamics (6 papers). KR Helyar collaborates with scholars based in . KR Helyar's co-authors include AM Ridley, WJ Slattery, AJ Anderson, Ann Cowling, RD Armstrong, Kate Spencer, WJ Müller, RF Brown and EK Christie and has published in prestigious journals such as Soil Research, Australian Journal of Soil Research and Australian Journal of Agricultural Research.

In The Last Decade

KR Helyar

13 papers receiving 315 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
KR Helyar	10	284	160	148	129	119	13	434
WJ Slattery	12	294 1.0×	189 1.2×	138 0.9×	81 0.6×	177 1.5×	14	511
R. P. Fisher Australia	12	182 0.6×	171 1.1×	171 1.2×	74 0.6×	81 0.7×	13	364
J. Standley Australia	10	392 1.4×	215 1.3×	82 0.6×	113 0.9×	155 1.3×	29	535
A Ellington Australia	12	292 1.0×	238 1.5×	191 1.3×	83 0.6×	155 1.3×	14	538
CH Williams	7	255 0.9×	154 1.0×	96 0.6×	112 0.9×	129 1.1×	9	382
G. J. Poile Australia	16	354 1.2×	152 0.9×	135 0.9×	106 0.8×	237 2.0×	29	611
Sérgio Ely Valadão Gigante de Andrade Costa Brazil	15	487 1.7×	145 0.9×	57 0.4×	69 0.5×	228 1.9×	21	581
Todd Nissen United States	10	181 0.6×	69 0.4×	66 0.4×	56 0.4×	61 0.5×	16	333
PJ Dolling	8	177 0.6×	46 0.3×	38 0.3×	85 0.7×	94 0.8×	10	287
W. H. Pierre United States	11	430 1.5×	220 1.4×	23 0.2×	141 1.1×	264 2.2×	16	607

Countries citing papers authored by KR Helyar

Since Specialization

Citations

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

Fields of papers citing papers by KR Helyar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by KR Helyar. 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 KR Helyar. The network helps show where KR Helyar may publish in the future.

Co-authorship network of co-authors of KR Helyar

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

All Works

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13 of 13 papers shown

Armstrong, RD & KR Helyar. (1993). Utilization of labeled mineral and organic phosphorus sources by grasses common to semi-arid mulga shrublands. Australian Journal of Soil Research. 31(3). 271–283. 3 indexed citations

Armstrong, RD, RF Brown, & KR Helyar. (1993). The use of nitrogen, phosphorus and lime to limit the competitive ability of Aristida armata in the establishment phase. Australian Journal of Agricultural Research. 44(1). 165–178. 9 indexed citations

Armstrong, RD & KR Helyar. (1993). Relative importance of soil phosphorus to the growth of wiregrass (Aristida armata) compared with other grasses common to the mulga shrublands of Queensland. Australian Journal of Experimental Agriculture. 33(3). 337–337. 3 indexed citations

Armstrong, RD & KR Helyar. (1992). Changes in soil phosphate fractions in the rhizosphere of semi-arid pasture grasses. Australian Journal of Soil Research. 30(2). 131–143. 28 indexed citations

Helyar, KR, et al.. (1992). The P fertilizer requirements of subterranean clover, and the soil P status, sorption and buffering capacities from two P analyses. Australian Journal of Soil Research. 30(1). 27–43. 25 indexed citations

Armstrong, RD, KR Helyar, & EK Christie. (1992). Vesicular-arbuscular mycorrhiza in semi-arid pastures of south-west Queensland and their effect on growth responses to phosphorus fertilizers by grasses. Australian Journal of Agricultural Research. 43(5). 1143–1155. 7 indexed citations

Helyar, KR, et al.. (1990). Soil acidity in New-South-Wales - Current pH values and estimates of acidification rates. Australian Journal of Soil Research. 28(4). 523–537. 95 indexed citations

Ridley, AM, WJ Slattery, KR Helyar, & Ann Cowling. (1990). The importance of the carbon cycle to acidification of a grazed annual pasture. Australian Journal of Experimental Agriculture. 30(4). 529–529. 46 indexed citations

Ridley, AM, WJ Slattery, KR Helyar, & Ann Cowling. (1990). Acidification under grazed annual and perennial grass based pastures. Australian Journal of Experimental Agriculture. 30(4). 539–539. 57 indexed citations

10.

Ridley, AM, KR Helyar, & WJ Slattery. (1990). Soil acidification under subterranean clover (Trifolium subterraneum L.) pastures in north-eastern Victoria. Australian Journal of Experimental Agriculture. 30(2). 195–195. 50 indexed citations

11.

Helyar, KR & Kate Spencer. (1977). Sodium bicarbonate soil test values and the phosphate buffering capacity of soils. Soil Research. 15(3). 263–273. 41 indexed citations

12.

Helyar, KR & AJ Anderson. (1971). Effects of lime on the growth of five species, on aluminium toxicity, and on phosphorus availability. Australian Journal of Agricultural Research. 22(5). 707–720. 51 indexed citations

13.

Helyar, KR & AJ Anderson. (1970). Responses of five pasture species to phosphorus, lime, and nitrogen on an infertile acid soil with a high phosphate sorption capacity. Australian Journal of Agricultural Research. 21(5). 677–692. 19 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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