World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
58
Citations
14132
World Ranking
1327
National Ranking
12

Overview

What is he best known for?

The fields of study he is best known for:

  • Agriculture
  • Ecology
  • Fertilizer

His scientific interests lie mostly in Soil water, Agronomy, Pasture, Nutrient and Soil pH. M. J. Hedley combines subjects such as Inorganic chemistry and Mineralogy with his study of Soil water. His Agronomy research includes elements of Canopy and Partial least squares regression.

His Pasture research includes themes of Soil management, Fertilizer, Organic matter and Topsoil. His Nutrient research is multidisciplinary, incorporating elements of Agriculture and Water quality. His Soil pH research incorporates elements of Bulk soil, Horticulture, Botany and Phosphorite.

His most cited work include:

  • Processes of soil acidification during nitrogen cycling with emphasis on legume based pastures (307 citations)
  • Losses and transformation of nitrogen during composting of poultry manure with different amendments: An incubation experiment (199 citations)
  • Environmental hazards of fluoride in volcanic ash: a case study from Ruapehu volcano, New Zealand (160 citations)

What are the main themes of his work throughout his whole career to date?

His main research concerns Soil water, Agronomy, Pasture, Phosphorite and Soil organic matter. M. J. Hedley has included themes like Hydrology and Fertilizer in his Soil water study. The various areas that M. J. Hedley examines in his Agronomy study include Animal science, Nutrient, Soil fertility and Topsoil.

His Pasture study combines topics from a wide range of disciplines, such as Organic matter, Partial least squares regression and Soil management. His work in Phosphorite tackles topics such as Nuclear chemistry which are related to areas like Inorganic chemistry. His biological study spans a wide range of topics, including Soil classification, Nutrient cycle, Leaching and Soil horizon.

He most often published in these fields:

  • Soil water (52.34%)
  • Agronomy (50.00%)
  • Pasture (31.25%)

What were the highlights of his more recent work (between 2007-2020)?

  • Agronomy (50.00%)
  • Soil water (52.34%)
  • Pasture (31.25%)

In recent papers he was focusing on the following fields of study:

His primary areas of investigation include Agronomy, Soil water, Pasture, Soil science and Soil classification. His Agronomy research is multidisciplinary, incorporating perspectives in Soil fertility and Topsoil. The study of Soil water is intertwined with the study of Drainage in a number of ways.

His work deals with themes such as Dairy farming, Organic matter, Partial least squares regression and Plough, which intersect with Pasture. His research in Soil science intersects with topics in Carbonization and Water extraction. He focuses mostly in the field of Soil classification, narrowing it down to matters related to Soil biodiversity and, in some cases, Soil pH and No-till farming.

Between 2007 and 2020, his most popular works were:

  • In-field hyperspectral proximal sensing for estimating quality parameters of mixed pasture (68 citations)
  • Soil fauna in grazed New Zealand hill country pastures at two management intensities (58 citations)
  • The use of diffuse reflectance spectroscopy for in situ carbon and nitrogen analysis of pastoral soils (56 citations)

In his most recent research, the most cited papers focused on:

  • Agriculture
  • Ecology
  • Fertilizer

M. J. Hedley mainly investigates Agronomy, Pasture, Partial least squares regression, Mathematics and Organic matter. His Agronomy study combines topics in areas such as Loam and Soil fertility. His study looks at the relationship between Loam and topics such as Soil type, which overlap with Soil carbon.

The study incorporates disciplines such as Soil organic matter and Mineralogy in addition to Soil carbon. His studies in Pasture integrate themes in fields like Biomass, Soil mesofauna, Earthworm, Topsoil and Soil management. His Partial least squares regression research focuses on subjects like Hyperspectral imaging, which are linked to Nutrient and Absorbance.

Best Publications

  • Effect of biochar on soil physical properties in two contrasting soils: An Alfisol and an Andisol

    Unknown

  • Processes of soil acidification during nitrogen cycling with emphasis on legume based pastures

    N. S. Bolan;M. J. Hedley;R. E. White

  • Plant-induced changes in the rhizosphere of rape (Brassica napus var. Emerald) seedlings. III. Changes in L value, soil phosphate fractions and phosphatase activity.

    Unknown

  • Losses and transformation of nitrogen during composting of poultry manure with different amendments: An incubation experiment

    S. Mahimairaja;N.S. Bolan;M.J. Hedley;A.N. Macgregor

  • PLANT‐INDUCED CHANGES IN THE RHIZOSPHERE OF RAPE (BRASSICA NAPUS VAR. EMERALD) SEEDLINGS

    Unknown

  • Fluoride: A review of its fate, bioavailability, and risks of fluorosis in grazed‐pasture systems in New Zealand

    S. J. Cronin;V. Manoharan;M. J. Hedley;P. Loganathan

  • Environmental hazards of fluoride in volcanic ash: a case study from Ruapehu volcano, New Zealand

    Shane J Cronin;V.E Neall;J.A Lecointre;M.J Hedley

  • A simplified resin membrane technique for extracting phosphorus from soils

    S. Saggar;M. J. Hedley;R. E. White

  • Nutrient management in New Zealand pastures— recent developments and future issues

    R. M. Monaghan;M. J. Hedley;H. J. Di;R. W. McDowell

  • Role of carbon, nitrogen, and sulfur cycles in soil acidification.

    Nanthi S. Bolan;Mike J. Hedley

  • Fertiliser contaminants in New Zealand grazed pasture with special reference to cadmium and fluorine — a review

    P. Loganathan;M. J. Hedley;N. D. Grace;J. Lee

  • A review of the use of phosphate rocks as fertilizers for direct application in Australia and New Zealand.

    NS Bolan;RE White;MJ Hedley

  • Plant induced changes in the rhizosphere of rape brassica napus cultivar emerald seedlings 1. ph change and the increase in phosphorus concentration in the soil solution

    Unknown

  • Agronomic impact of tephra fallout from the 1995 and 1996 Ruapehu Volcano eruptions, New Zealand

    S. J. Cronin;M. J. Hedley;V. E. Neall;R. G. Smith

  • Fluoride accumulation in pasture forages and soils following long-term applications of phosphorus fertilisers

    P. Loganathan;M.J. Hedley;G.C. Wallace;A.H.C. Roberts

  • Progress in selected areas of rhizosphere research on P acquisition

    S. N. Trolove;S. N. Trolove;M. J. Hedley;G. J. D. Kirk;N. S. Bolan

  • Phosphorus efficiency and the forms of soil phosphorus utilized by upland rice cultivars

    Unknown

  • In-field hyperspectral proximal sensing for estimating quality parameters of mixed pasture

    R. R. Pullanagari;I. J. Yule;M. P. Tuohy;M. J. Hedley

  • Transformation of nitrogen and nitrous oxide emission from grassland soils as affected by compaction

    R. Bhandral;S. Saggar;N.S. Bolan;M.J. Hedley

  • A review of literature on the land treatment of farm‐dairy effluent in New Zealand and its impact on water quality

    D. J. Houlbrooke;D. J. Horne;M. J. Hedley;J. A. Hanly

  • Producing biochars with enhanced surface activity through alkaline pretreatment of feedstocks

    K. Hina;P. Bishop;M.C. Arbestain;R. Calvelo-Pereira

  • A nutrient-transfer model to explain the fate of phosphorus and sulphur in a Grazed Hill-Country pasture

    S. Saggar;A.D. Mackay;M.J. Hedley;M.G. Lambert

  • Soil fauna in grazed New Zealand hill country pastures at two management intensities

    N.L. Schon;A.D. Mackay;M.A. Minor;G.W. Yeates

  • Total and soluble fluorine concentrations in relation to properties of soils in New Zealand

    P. Loganathan;C. W. Gray;M. J. Hedley;A. H. C. Roberts

  • Dissolution of phosphate rocks in soils. 2. Effect of pH on the dissolution and plant availability of phosphate rock in soil with pH dependent charge.

    N. S. Bolan;M. J. Hedley

  • Downward movement of cadmium and phosphorus from phosphatic fertilisers in a pasture soil in New Zealand.

    P. Loganathan;M.J. Hedley

  • A technique for studying rhizosphere processes in tree crops : soil phosphorus depletion around camellia (Camellia japonica L.) roots

    A.K.N. Zoysa;P. Loganathan;M.J. Hedley

Frequent Co-Authors

Paripurnanda Loganathan
Paripurnanda Loganathan University of Technology Sydney
Nanthi Bolan
Nanthi Bolan University of Western Australia
Alec D. Mackay
Alec D. Mackay AgResearch
Surinder Saggar
Surinder Saggar Landcare Research
Shane J. Cronin
Shane J. Cronin University of Auckland
Carolyn Hedley
Carolyn Hedley Landcare Research
ND Grace
ND Grace AgResearch
Christopher Anderson
Christopher Anderson Massey University
Hailong Wang
Hailong Wang Foshan University
Vincent E. Neall
Vincent E. Neall Massey University

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