Paul Johnstone

1.5k total citations
60 papers, 1.1k citations indexed

About

Paul Johnstone is a scholar working on Plant Science, Soil Science and Agronomy and Crop Science. According to data from OpenAlex, Paul Johnstone has authored 60 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Plant Science, 26 papers in Soil Science and 16 papers in Agronomy and Crop Science. Recurrent topics in Paul Johnstone's work include Soil Carbon and Nitrogen Dynamics (18 papers), Soil and Water Nutrient Dynamics (15 papers) and Crop Yield and Soil Fertility (11 papers). Paul Johnstone is often cited by papers focused on Soil Carbon and Nitrogen Dynamics (18 papers), Soil and Water Nutrient Dynamics (15 papers) and Crop Yield and Soil Fertility (11 papers). Paul Johnstone collaborates with scholars based in New Zealand, United States and Germany. Paul Johnstone's co-authors include T.K. Hartz, E.M. Miyao, Edmar Teixeira, Hamish Brown, E. Chakwizira, J. M. de Ruiter, Andrew Fletcher, J. J. Nuñez, Richard Smith and David M. Francis and has published in prestigious journals such as The Science of The Total Environment, Frontiers in Microbiology and Agriculture Ecosystems & Environment.

In The Last Decade

Paul Johnstone

57 papers receiving 1.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Paul Johnstone New Zealand 18 528 382 194 168 142 60 1.1k
Kirsten Barlow Australia 14 535 1.0× 285 0.7× 242 1.2× 169 1.0× 229 1.6× 27 1.1k
Lilia Rabeharisoa Madagascar 20 453 0.9× 454 1.2× 115 0.6× 161 1.0× 182 1.3× 44 1.1k
A. Sigrun Dahlin Sweden 24 431 0.8× 503 1.3× 350 1.8× 102 0.6× 189 1.3× 70 1.3k
Alicia Morugán‐Coronado Spain 15 315 0.6× 559 1.5× 147 0.8× 156 0.9× 115 0.8× 24 1.0k
Muhammad Amjad Bashir Pakistan 20 522 1.0× 246 0.6× 109 0.6× 117 0.7× 74 0.5× 68 1.1k
P. S. Cornish Australia 19 315 0.6× 497 1.3× 173 0.9× 175 1.0× 257 1.8× 69 1.2k
Giuseppe Zanin Italy 23 700 1.3× 243 0.6× 276 1.4× 87 0.5× 205 1.4× 67 1.3k
Nicole Robinson Australia 19 909 1.7× 548 1.4× 145 0.7× 153 0.9× 110 0.8× 56 1.5k
Masakazu Komatsuzaki Japan 22 528 1.0× 684 1.8× 260 1.3× 124 0.7× 154 1.1× 105 1.4k
Javed Iqbal United States 20 550 1.0× 573 1.5× 246 1.3× 146 0.9× 219 1.5× 62 1.3k

Countries citing papers authored by Paul Johnstone

Since Specialization
Citations

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

Fields of papers citing papers by Paul Johnstone

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Paul Johnstone

This figure shows the co-authorship network connecting the top 25 collaborators of Paul Johnstone. A scholar is included among the top collaborators of Paul Johnstone 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 Paul Johnstone. Paul Johnstone 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.
Pinho‐Gomes, Ana‐Catarina, Gary W. Fuller, D. Fowler, et al.. (2023). Air pollution and climate change. The Lancet Planetary Health. 7(9). e727–e728. 41 indexed citations
2.
Johnstone, Paul, Steve Green, Stephen Trolove, et al.. (2022). Using drainage fluxmeters to measure inorganic nitrogen losses from New Zealand’s arable and vegetable production systems. New Zealand Journal of Crop and Horticultural Science. 51(2). 274–296. 3 indexed citations
3.
Teixeira, Edmar, Kurt Christian Kersebaum, Rogerio Cichota, et al.. (2021). Understanding spatial and temporal variability of N leaching reduction by winter cover crops under climate change. The Science of The Total Environment. 771. 144770–144770. 21 indexed citations
4.
Reid, JB, et al.. (2020). Beetroot ( Beta vulgaris L.) growth and response to N supply – a case study. New Zealand Journal of Crop and Horticultural Science. 48(4). 191–212. 3 indexed citations
5.
Malcolm, B, J. M. de Ruiter, D. E. Dalley, et al.. (2020). Catch crops and feeding strategy can reduce the risk of nitrogen leaching in late lactation fodder beet systems. New Zealand Journal of Agricultural Research. 63(1). 44–64. 13 indexed citations
6.
Ruiter, J. M. de, B Malcolm, E. Chakwizira, et al.. (2018). Crop management effects on supplementary feed quality and crop options for dairy feeding to reduce nitrate leaching. New Zealand Journal of Agricultural Research. 62(3). 369–398. 5 indexed citations
7.
Johnstone, Paul, Moira Dexter, Diana Selbie, et al.. (2018). Predicting nitrogen supply from dairy effluent applied to contrasting soil types. New Zealand Journal of Agricultural Research. 62(4). 438–456. 3 indexed citations
8.
Chakwizira, E., et al.. (2017). Maize silage‐winter crop sequences that maximise forage production and quality. New Zealand Journal of Agricultural Research. 62(1). 1–22. 6 indexed citations
9.
Reid, JB, et al.. (2017). On the responses of carrots ( Daucus carota L.) to nitrogen supply. New Zealand Journal of Crop and Horticultural Science. 46(4). 298–318. 5 indexed citations
10.
Teixeira, Edmar, J. M. de Ruiter, Anne-Gäelle Ausseil, et al.. (2017). Adapting crop rotations to climate change in regional impact modelling assessments. The Science of The Total Environment. 616-617. 785–795. 65 indexed citations
11.
Teixeira, Edmar, Paul Johnstone, E. Chakwizira, et al.. (2016). Sources of variability in the effectiveness of winter cover crops for mitigating N leaching. Agriculture Ecosystems & Environment. 220. 226–235. 56 indexed citations
12.
Johnstone, Paul. (2011). Poseidon P-8A - God of the Sea and Shaker of the Earth. 37(1). 18. 1 indexed citations
13.
Hartz, T.K., Paul Johnstone, Richard Smith, & Michael Cahn. (2007). Soil Calcium Status Unrelated to Tipburn of Romaine Lettuce. HortScience. 42(7). 1681–1684. 18 indexed citations
14.
Johnstone, Paul, et al.. (2005). Managing Fruit Soluble Solids with Late-season Deficit Irrigation in Drip-irrigated Processing Tomato Production. HortScience. 40(6). 1857–1861. 95 indexed citations
15.
Johnstone, Paul, et al.. (2005). Lettuce Response to Phosphorus Fertilization in High Phosphorus soils. HortScience. 40(5). 1499–1503. 26 indexed citations
16.
Johnstone, Paul, T.K. Hartz, E.M. Miyao, & R. M. Davis. (2005). Biofumigation and Soil Conditioning Effects of Cover Crops in Processing Tomato. HortScience. 40(4). 1111B–1111. 1 indexed citations
17.
Hartz, T.K., Paul Johnstone, & E.M. Miyao. (2005). Potassium Fertigation Improves Tomato Yield and Fruit Color. HortScience. 40(4). 1107C–1107. 1 indexed citations
18.
Hartz, T.K., Paul Johnstone, E.M. Miyao, & R. Michael Davis. (2005). Mustard Cover Crops Are Ineffective in Suppressing Soilborne Disease or Improving Processing Tomato Yield. HortScience. 40(7). 2016–2019. 47 indexed citations
19.
Johnstone, Paul & T.K. Hartz. (2004). Lettuce Response to Phosphorus Fertilization in High P soils. HortScience. 39(4). 795E–796. 3 indexed citations
20.
Hartz, T.K., et al.. (2004). Irrigation Cutback a Reliable Tool for Soluble Solids Improvement in Processing Tomato. HortScience. 39(4). 763C–763. 2 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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