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New Zealand Journal of Agricultural Research
H-index 10

New Zealand Journal of Agricultural Research

0028-8233

Published by: Taylor & Francis

https://www.tandfonline.com/toc/tnza20/current

Ranking & Metrics

Discipline name Position Best Scientists Publications D-Index
Animal Science and Veterinary 167 26 63 6
Plant Science and Agronomy 244 20 47 9

Additional Metrics

Number of Best Scientists*: 67
Documents by Best Scientists*: 122
Top 100 Ranked Scientists*: 1
SCIMAGO H-index: 54
SCIMAGO SJR: 0.325
Impact Factor: 1.5

Overview

Top Research Topics at New Zealand Journal of Agricultural Research?

The journal tackles a plethora of topics, such as Agronomy, Pasture, Animal science, Botany and Grazing. The Agronomy study tackled is a key component of adjacent topics in the area of Soil water. The field of Soil science is the anchor for the Soil water studies presented in the journal.

While work presented in New Zealand Journal of Agricultural Research provided substantial information on Pasture, it also covered topics in Loam, Phosphorus and Nitrogen. New Zealand Journal of Agricultural Research explores issues in Animal science which can be linked to other research areas like Wool, Internal medicine and Endocrinology. The study on Botany presented in it intersects with the topics under Horticulture.

The Perennial plant research dealing mostly with Lolium perenne is the focus of the journal.

  • Agronomy (46.49%)
  • Pasture (23.44%)
  • Animal science (22.57%)

What are the most cited papers published in the journal?

  • Phosphate retention by New Zealand soils and its relationship to free sesquioxides, organic matter, and other soil properties (288 citations)
  • A proposed nomenclature and classification for plant pathogenic bacteria (249 citations)
  • Microbial degradation of DDT and its residues—A review (215 citations)

Research areas of the most cited articles at New Zealand Journal of Agricultural Research:

The main points discussed in the most cited articles deal with Agronomy, Pasture, Animal science, Grazing and Soil water. The journal publications investigate Agronomy research which frequently intersects with Loam. While the primary focus in the published articles is Pasture, they also dissect topics surrounding Nitrate and Leaching (agriculture) as a whole.

What topics the last edition of the journal is best known for?

  • Ecology
  • Botany
  • Internal medicine

The previous edition focused in particular on these issues:

The discussions in the journal mainly cover the fields of Animal science, Agronomy, Pasture, Soil water and Grazing. The work on Animal science tackled in the journal brings together disciplines like Urinary nitrogen, Weaning weight and Lactation. Agronomy studies presented in it focus on topics such as Forage, Perennial plant, Weed, Herbicide resistance and Resistance (ecology).

The Pasture works featured in the journal incorporate elements from Soil type, Deposition (chemistry), Ecosystem and Amino acid substitution. Topics in Soil water were tackled in line with various other fields like Agroforestry, Irrigation, Effluent and Land use. It explores topics in Grazing which can be helpful for research in disciplines like Hyperspectral imaging, Earthworm and Methane.

The most cited articles from the last journal are:

  • Effects of irrigation on soil physical properties in predominantly pastoral farming systems: a review (8 citations)
  • Temporal trends in soil physical properties under cropping with intensive till and no-till management (7 citations)
  • Effect of DGAT1 variant (K232A) on milk traits and milk fat composition in outdoor pasture-grazed dairy cattle (7 citations)

Papers citation over time

A key indicator for each journal is its effectiveness in reaching other researchers with the papers published at that venue.

The chart below presents the interquartile range (first quartile 25%, median 50% and third quartile 75%) of the number of citations of articles over time.

The top authors publishing in New Zealand Journal of Agricultural Research (based on the number of publications) are:

  • S. T. Morris (51 papers) published 2 papers at the last edition,
  • C. A. Morris (49 papers) absent at the last edition,
  • Keith C. Cameron (49 papers) published 4 papers at the last edition, 2 less than at the previous edition,
  • Paul R. Kenyon (41 papers) published 2 papers at the last edition, 1 less than at the previous edition,
  • Roger W. Purchas (35 papers) absent at the last edition.

The overall trend for top authors publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top authors.

Only papers with recognized affiliations are considered

The top affiliations publishing in New Zealand Journal of Agricultural Research (based on the number of publications) are:

  • AgResearch (578 papers) published 22 papers at the last edition, 7 more than at the previous edition,
  • Massey University (475 papers) published 15 papers at the last edition, 8 more than at the previous edition,
  • Canterbury of New Zealand (233 papers) published 5 papers at the last edition, 2 less than at the previous edition,
  • Wellington Management Company (158 papers) published 2 papers at the last edition, 1 more than at the previous edition,
  • Lincoln University (New Zealand) (98 papers) published 14 papers at the last edition, 2 more than at the previous edition.

The overall trend for top affiliations publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top affiliations.

Publication chance based on affiliation

The publication chance index shows the ratio of articles published by the best research institutions in the journal edition to all articles published within that journal. The best research institutions were selected based on the largest number of articles published during all editions of the journal.

The chart below presents the percentage ratio of articles from top institutions (based on their ranking of total papers).Top affiliations were grouped by their rank into the following tiers: top 1-10, top 11-20, top 21-50, and top 51+. Only articles with a recognized affiliation are considered.

During the most recent 2021 edition, 4.55% of publications had an unrecognized affiliation. Out of the publications with recognized affiliations, 85.71% were posted by at least one author from the top 10 institutions publishing in the journal. Another 3.17% included authors affiliated with research institutions from the top 11-20 affiliations. Institutions from the 21-50 range included 6.35% of all publications and 4.76% were from other institutions.

Returning Authors Index

A very common phenomenon observed among researchers publishing scientific articles is the intentional selection of journals they have already attended in the past. In particular, it is worth analyzing the case when the authors participate in the same journal from year to year.

The Returning Authors Index presented below illustrates the ratio of authors who participated in both a given as well as the previous edition of the journal in relation to all participants in a given year.

Returning Institution Index

The graph below shows the Returning Institution Index, illustrating the ratio of institutions that participated in both a given and the previous edition of the conference in relation to all affiliations present in a given year.

The experience to innovation index

Our experience to innovation index was created to show a cross-section of the experience level of authors publishing in a journal. The index includes the authors publishing at the last edition of a journal, grouped by total number of publications throughout their academic career (P) and the total number of citations of these publications ever received (C).

The group intervals were selected empirically to best show the diversity of the authors' experiences, their labels were selected as a convenience, not as judgment. The authors were divided into the following groups:

  • Novice - P < 5 or C < 25 (the number of publications less than 5 or the number of citations less than 25),
  • Competent - P < 10 or C < 100 (the number of publications less than 10 or the number of citations less than 100),
  • Experienced - P < 25 or C < 625 (the number of publications less than 25 or the number of citations less than 625),
  • Master - P < 50 or C < 2500 (the number of publications less than 50 or the number of citations less than 2500),
  • Star - P ≥ 50 and C ≥ 2500 (both the number of publications greater than 50 and the number of citations greater than 2500).

The chart below illustrates experience levels of first authors in cases of publications with multiple authors.

Top Publications

  • A review of plant options for mitigating nitrous oxide emissions from pasture-based systems

    Cecile A. M. de Klein;Tony J. van der Weerden;Jiafa Luo;Keith C. Cameron

    (2020)
    61 Citations
  • Can the presence of plantain (Plantago lanceolata L.) improve nitrogen cycling of dairy grassland systems on peat soils

    Jeroen Pijlman;Stijn J. Berger;Fay Lexmond;Jaap Bloem

    (2020)
    22 Citations
  • Differences in lamb production between ewe lambs and mature ewes

    Emma J. Pettigrew;Rebecca E. Hickson;Hugh T. Blair;Kate J. Griffiths

    (2021)
    15 Citations
  • Linear versus seasonal growth of dairy heifers decreased age at puberty but did not affect first lactation milk production

    Rhiannon C. Handcock;Catriona M. C. Jenkinson;Richard Laven;Lorna R. McNaughton

    (2021)
    15 Citations
  • Catch crops and feeding strategy can reduce the risk of nitrogen leaching in late lactation fodder beet systems

    Brendon J. Malcolm;John M. de Ruiter;Dawn E. Dalley;Sam Carrick

    (2020)
    14 Citations
  • Data from commercial sheep producers shows that lambing ewes in larger mobs and at higher stocking rates reduces the survival of their lambs

    Amy L. Lockwood;Serina N. Hancock;Jason P. Trompf;Lyndon J. Kubeil

    (2020)
    13 Citations
  • Simplified methods for on-farm prediction of yield potential of grazed lucerne crops in New Zealand

    Derrick J. Moot;Xiumei Yang;Hung T. Ta;Hamish E. Brown

    (2021)
    12 Citations
  • Production, profit and nitrogen flows in irrigated dairy systems representing different industry development pathways: the Pastoral 21 experience in Canterbury

    David F. Chapman;Dawn E. Dalley;Grant R. Edwards;Keith C. Cameron

    (2021)
    12 Citations
  • Effects of heavier live weight of ewe lambs at mating on fertility, lambing percentage, subsequent live weight and the performance of their progeny

    Emmanuelle Haslin;Rene A. Corner-Thomas;Paul R. Kenyon;Steve T. Morris

    (2020)
    10 Citations
  • Earthworms for inclusion as an indicator of soil biological health in New Zealand pastures

    (2022)
    10 Citations

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