World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
64
Citations
18038
World Ranking
966
National Ranking
89

Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Organic chemistry
  • Biochemistry

His scientific interests lie mostly in Organic matter, Agronomy, Soil water, Soil organic matter and Environmental chemistry. His Organic matter study combines topics in areas such as Fertilizer, Nitrogen cycle and Mineralization. His work deals with themes such as Soil chemistry and Incubation, which intersect with Agronomy.

He has researched Soil water in several fields, including Lime, Nutrient and Manure. His work carried out in the field of Soil organic matter brings together such families of science as Humus, Pasture, Soil management, Biomass and No-till farming. His Environmental chemistry study integrates concerns from other disciplines, such as Soil contamination, Adsorption, Sorption, Municipal solid waste and Biosolids.

His most cited work include:

  • Effects of irrigation-induced salinity and sodicity on soil microbial activity (593 citations)
  • Labile Organic Matter Fractions as Central Components of the Quality of Agricultural Soils: An Overview (584 citations)
  • Amelioration of Al toxicity and P deficiency in acid soils by additions of organic residues: a critical review of the phenomenon and the mechanisms involved (398 citations)

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

Agronomy, Soil water, Environmental chemistry, Organic matter and Soil organic matter are his primary areas of study. His studies in Agronomy integrate themes in fields like Biomass and Soil pH. His research in Soil water tackles topics such as Crop which are related to areas like Soil test.

His Environmental chemistry study incorporates themes from Red mud, Adsorption, Gypsum, Alkalinity and Biosolids. His Organic matter research integrates issues from Humus, Fertilizer, Leaching, Mineralization and Nitrogen cycle. His Soil organic matter research is multidisciplinary, incorporating perspectives in Soil biology, Soil type, No-till farming and Pasture.

He most often published in these fields:

  • Agronomy (56.44%)
  • Soil water (42.57%)
  • Environmental chemistry (31.68%)

What were the highlights of his more recent work (between 2014-2020)?

  • Environmental chemistry (31.68%)
  • Adsorption (15.84%)
  • Inorganic chemistry (8.91%)

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

Richard J. Haynes mostly deals with Environmental chemistry, Adsorption, Inorganic chemistry, Bauxite and Soil water. His research integrates issues of Fertilizer, Nitrification, Gypsum, Alkalinity and Biosolids in his study of Environmental chemistry. His Biosolids study frequently draws parallels with other fields, such as Organic matter.

His Organic matter research incorporates elements of Raw material and Green waste, Compost. Richard J. Haynes interconnects Wastewater and Water treatment in the investigation of issues within Adsorption. His research in Soil water intersects with topics in Agronomy, Crop and Silicic acid.

Between 2014 and 2020, his most popular works were:

  • Potential for use of industrial waste materials as filter media for removal of Al, Mo, As, V and Ga from alkaline drainage in constructed wetlands – Adsorption studies (38 citations)
  • Use of Industrial Wastes as Media in Constructed Wetlands and Filter Beds—Prospects for Removal of Phosphate and Metals from Wastewater Streams (36 citations)
  • The nature of biogenic Si and its potential role in Si supply in agricultural soils (34 citations)

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

  • Ecology
  • Organic chemistry
  • Biochemistry

His primary scientific interests are in Soil water, Adsorption, Inorganic chemistry, Soil test and Crop residue. His Soil water study frequently draws connections to other fields, such as Silicic acid. His Adsorption study combines topics from a wide range of disciplines, such as Wastewater, Water treatment, Environmental engineering and Ground granulated blast-furnace slag.

The Wastewater study combines topics in areas such as Organic matter, Freundlich equation, Sewage treatment and Filter. The concepts of his Inorganic chemistry study are interwoven with issues in Environmental chemistry and Bauxite. The study incorporates disciplines such as Agronomy, Crop, Shoot, Annual plant and Straw in addition to Soil test.

Best Publications

  • Labile Organic Matter Fractions as Central Components of the Quality of Agricultural Soils: An Overview

    RJ Haynes

  • Effects of irrigation-induced salinity and sodicity on soil microbial activity

    D.N Rietz;R.J Haynes

  • Amelioration of Al toxicity and P deficiency in acid soils by additions of organic residues: a critical review of the phenomenon and the mechanisms involved

    RJ Haynes;Mokolobate

  • Influence of six crop species on aggregate stability and some labile organic matter fractions

    R.J. Haynes;Michael H. Beare

  • A contemporary overview of silicon availability in agricultural soils

    Richard J. Haynes

  • Reclamation and revegetation of fly ash disposal sites – Challenges and research needs

    R.J. Haynes

  • Soil organic matter content and quality: effects of fertilizer applications, burning and trash retention on a long-term sugarcane experiment in South Africa

    M.H. Graham;R.J. Haynes;J.H. Meyer

  • Changes in microbial biomass C, soil carbohydrate composition and aggregate stability induced by growth of selected crop and forage species under field conditions

    Unknown

  • Size, activity and catabolic diversity of the soil microbial biomass as affected by land use

    D Nsabimana;R.J Haynes;F.M Wallis

  • Effect of amendment of bauxite processing sand with organic materials on its chemical, physical and microbial properties.

    B. E. H. Jones;R. J. Haynes;I. R. Phillips

  • Bauxite Processing Residue: A Critical Review of Its Formation, Properties, Storage, and Revegetation

    B. E. H. Jones;R. J. Haynes

  • Burning causes long-term changes in soil organic matter content of a South African grassland

    R.W.S. Fynn;R.J. Haynes;T.G. O'Connor

  • Optimization of soil physical and chemical conditions for the bioremediation of creosote-contaminated soil

    H. I. Atagana;R. J. Haynes;F. M. Wallis

  • Changes in soil chemistry and aggregate stability induced by fertilizer applications, burning and trash retention on a long‐term sugarcane experiment in South Africa

    M. H. Graham;R. J. Haynes;J. H. Meyer

  • Chemical, microbial and physical properties of manufactured soils produced by co-composting municipal green waste with coal fly ash.

    O.N. Belyaeva;R.J. Haynes

  • Removal of Pb(II), Cr(III) and Cr(VI) from Aqueous Solutions Using Alum-Derived Water Treatment Sludge

    Ya-Feng Zhou;Richard John Haynes

  • Comparative liming effect of four organic residues applied to an acid soil

    M. S. Mokolobate;R. J. Haynes

  • Barley yield and soil microbial and enzyme activities as affected by contamination of two soils with lead, zinc or copper

    O. N. Belyaeva;R. J. Haynes;O. A. Birukova

  • Inorganic and organic constituents and contaminants of biosolids: Implications for land application

    R. J. Haynes;G. Murtaza;G. Murtaza;R. Naidu

  • Loss of soil organic matter and related soil properties under long-term sugarcane production on two contrasting soils

    CS Dominy;RJ Haynes;R van Antwerpen

  • Evaluation of industrial wastes as sources of fertilizer silicon using chemical extractions and plant uptake

    Richard J. Haynes;O. N. Belyaeva;G. Kingston

  • Organic matter accumulation and fertilizer-induced acidification interact to affect soil microbial and enzyme activity on a long-term sugarcane management experiment

    M. H. Graham;R. J. Haynes

  • Effect of agricultural land use on soil organic matter status and the composition of earthworm communities in KwaZulu-Natal, South Africa

    R.J. Haynes;C.S. Dominy;M.H. Graham

  • Catabolic diversity of soil microbial communities under sugarcane and other land uses estimated by Biolog and substrate-induced respiration methods

    M.H. Graham;R.J. Haynes

  • Fungal Bioremediation of Creosote-Contaminated Soil: A Laboratory Scale Bioremediation Study Using Indigenous Soil Fungi

    Harrison Ifeanychukwu Atagana;R. J. Haynes;F. M. Wallis

  • Effect of Organic Amendments on Soil ph and al Solubility and Use of Laboratory Indices to Predict Their Liming Effect

    F. X. Naramabuye;Richard J. Haynes

  • Organic matter status and the size, activity and metabolic diversity of the soil microbial community in the row and inter-row of sugarcane under burning and trash retention

    M.H. Graham;R.J. Haynes

  • Mineralization of soil organic P induced by drying and rewetting as a source of plant-available P in limed and unlimed samples of an acid soil

    C.K. Chepkwony;R.J. Haynes;R.J. Haynes;R.S. Swift;R. Harrison

  • The nature of biogenic Si and its potential role in Si supply in agricultural soils

    Richard J. Haynes

Frequent Co-Authors

Ravi Naidu
Ravi Naidu University of Newcastle Australia
Albert T. Modi
Albert T. Modi Walter Sisulu University
Timothy G. O’Connor
Timothy G. O’Connor University of the Witwatersrand
Nanthi Bolan
Nanthi Bolan University of Western Australia
Chengrong Chen
Chengrong Chen Griffith University

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