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Plant Science and Agronomy
Brazil
2026

D-Index & Metrics

Plant Science and Agronomy

D-Index
71
Citations
16763
World Ranking
680
National Ranking
7

Research.com Recognitions

  • 2026 - Research.com Plant Science and Agronomy in Brazil Leader Award
  • 2025 - Research.com Plant Science and Agronomy in Brazil Leader Award
  • 2023 - Research.com Plant Science and Agronomy in Brazil Leader Award
  • 2022 - Research.com Plant Science and Agronomy in Brazil Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Agronomy
  • Agriculture

Segundo Urquiaga spends much of his time researching Agronomy, Nitrogen fixation, Soil organic matter, Botany and Diazotroph. The various areas that Segundo Urquiaga examines in his Agronomy study include No-till farming, Soil water and Biofuel. He has included themes like Soil classification, Inoculation, Microbial inoculant and Crop in his Nitrogen fixation study.

His studies in Soil organic matter integrate themes in fields like Agroforestry, Soil carbon, Soil fertility, Soil test and Nutrient cycle. His work in the fields of Botany, such as Glomus, overlaps with other areas such as Sugar cane. His study focuses on the intersection of Diazotroph and fields such as Endophyte with connections in the field of Saccharum officinarum and Cultivar.

His most cited work include:

  • The contributions of nitrogen-fixing crop legumes to the productivity of agricultural systems. (402 citations)
  • Contribution of nitrogen fixation to sugar cane: nitrogen-15 and nitrogen-balance estimates. (366 citations)
  • Change in carbon and nitrogen stocks in soil under 13 years of conventional or zero tillage in southern Brazil (361 citations)

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

Segundo Urquiaga mostly deals with Agronomy, Nitrogen fixation, Horticulture, Green manure and Crop. His work on Agronomy is being expanded to include thematically relevant topics such as Soil organic matter. His Soil organic matter research is multidisciplinary, relying on both Agroforestry, Soil carbon, Soil fertility and Organic matter.

His work on Diazotroph is typically connected to Isotope dilution as part of general Nitrogen fixation study, connecting several disciplines of science. His Green manure research focuses on Crop rotation and how it relates to No-till farming and Conventional tillage. His studies examine the connections between Brachiaria and genetics, as well as such issues in Pasture, with regards to Nitrogen cycle.

He most often published in these fields:

  • Agronomy (58.69%)
  • Nitrogen fixation (31.46%)
  • Horticulture (15.49%)

What were the highlights of his more recent work (between 2017-2021)?

  • Agronomy (58.69%)
  • Greenhouse gas (7.51%)
  • Horticulture (15.49%)

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

Segundo Urquiaga mainly focuses on Agronomy, Greenhouse gas, Horticulture, Inoculation and Agriculture. His research in Agronomy intersects with topics in Nitrogen fixation and Acrisol, Soil water. The Nitrogen fixation study combines topics in areas such as Canavalia ensiformis and Green manure.

In his research, Nitrous oxide is intimately related to Atmospheric sciences, which falls under the overarching field of Greenhouse gas. He interconnects Plant use of endophytic fungi in defense and Dry matter in the investigation of issues within Horticulture. His study in the field of Microbial inoculant is also linked to topics like Persistence.

Between 2017 and 2021, his most popular works were:

  • Impact of plant growth-promoting bacteria on grain yield, protein content, and urea-15 N recovery by maize in a Cerrado Oxisol (27 citations)
  • Changes in soil carbon stocks after land-use change from native vegetation to pastures in the Atlantic forest region of Brazil (9 citations)
  • Effects of farmed managements in sandy soils on composition and stabilization of soil humic substances (9 citations)

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

  • Ecology
  • Agriculture
  • Agronomy

His primary areas of investigation include Agronomy, Soil water, Horticulture, Plant physiology and Brachiaria. The Agronomy study combines topics in areas such as Soil organic matter and Acrisol. Segundo Urquiaga has researched Soil water in several fields, including Sampling, Field plot, Margin of error and Ammonia volatilization from urea.

His Plant physiology research incorporates elements of Inoculation and Microbial inoculant. His study in Brachiaria is interdisciplinary in nature, drawing from both Arachis pintoi, Grazing, Tropical climate and Beef cattle. His Plant use of endophytic fungi in defense study deals with Green manure intersecting with Nitrogen fixation.

Best Publications

  • The contributions of nitrogen-fixing crop legumes to the productivity of agricultural systems.

    M.B. Peoples;J. Brockwell;D.F. Herridge;I.J. Rochester

  • Change in carbon and nitrogen stocks in soil under 13 years of conventional or zero tillage in southern Brazil

    Claudia P.J. Sisti;Henrique P. dos Santos;Rainoldo Kohhann;Bruno J.R. Alves

  • Contribution of nitrogen fixation to sugar cane: nitrogen-15 and nitrogen-balance estimates.

    Segundo Urquiaga;Kátia H.S. Cruz;Robert M. Boddey

  • Biological nitrogen fixation associated with sugar cane and rice: Contributions and prospects for improvement

    R. M. Boddey;O. C. de Oliveira;S. Urquiaga;V. M. Reis

  • Endophytic nitrogen fixation in sugarcane: present knowledge and future applications

    Robert M. Boddey;Segundo Urquiaga;Bruno J.R. Alves;Veronica Reis

  • The success of BNF in soybean in Brazil

    Bruno J. R. Alves;Robert M. Boddey;Segundo Urquiaga

  • Nitrogen cycling in Brachiaria pastures: the key to understanding the process of pasture decline

    R.M. Boddey;R. Macedo;R.M. Tarré;E. Ferreira

  • Biological nitrogen fixation associated with sugar cane

    R. M. Boddey;S. Urquiaga;V. Reis;J. Döbereiner

  • The effect of inoculating endophytic N2-fixing bacteria on micropropagated sugarcane plants

    A.L.M. Oliveira;S. Urquiaga;J. Döbereiner;J.I. Baldani

  • Carbon accumulation at depth in Ferralsols under zero-till subtropical agriculture

    Robert M. Boddey;Claudia P. Jantalia;Paulo C. Conceição;Josileia A. Zanatta

  • The Potential of C4 Perennial Grasses for Developing a Global BIOHEAT Industry

    Roger Samson;Sudhagar Mani;Robert Boddey;Shahab Sokhansanj

  • Fluxes of nitrous oxide from soil under different crop rotations and tillage systems in the South of Brazil

    Claudia P. Jantalia;Henrique P. dos Santos;Segundo Urquiaga;Robert M. Boddey

  • Use of the15N natural abundance technique for the quantification of the contribution of N2 fixation to sugar cane and other grasses

    Robert M. Boddey;José Carlos Polidoro;Alexander S. Resende;Bruno J. R. Alves

  • Selection of the most suitable sampling time for static chambers for the estimation of daily mean N2O flux from soils

    Bruno J.R. Alves;Keith A. Smith;Rilner A. Flores;Abmael S. Cardoso

  • Azospirillum amazonense inoculation: effects on growth, yield and N2 fixation of rice (Oryza sativa L.)

    Elisete Pains Rodrigues;Luciana da Silva Rodrigues;André Luiz Martinez de Oliveira;Vera Lucia Divan Baldani

  • Changes in soil C and N stocks and nutrient dynamics 13 years after recovery of degraded land using leguminous nitrogen-fixing trees

    M.O. Macedo;A.S. Resende;P.C. Garcia;R.M. Boddey

  • Produção de fitomassa, acúmulo de nutrientes e fixação biológica de nitrogênio por adubos verdes em cultivo isolado e consorciado

    Adriano Perin;Ricardo Henrique Silva Santos;Segundo Urquiaga;José Guilherme Marinho Guerra

  • Impact of the intensification of beef production in Brazil on greenhouse gas emissions and land use

    Abmael S. Cardoso;Alexandre Berndt;April Leytem;Bruno J.R. Alves

  • Impact of tillage and crop rotation on light fraction and intra-aggregate soil organic matter in two Oxisols

    L. Zotarelli;L. Zotarelli;B.J.R. Alves;S. Urquiaga;R.M. Boddey

  • Yield of micropropagated sugarcane varieties in different soil types following inoculation with diazotrophic bacteria

    André Luiz Martinez de Oliveira;André Luiz Martinez de Oliveira;Erineudo Lima de Canuto;Segundo Urquiaga;Veronica Massena Reis

  • Evidence from field nitrogen balance and 15N natural abundance data for the contribution of biological N2 fixation to Brazilian sugarcane varieties.

    Segundo Urquiaga;Rogério P. Xavier;Rafael F. de Morais;Rafael B. Batista

  • The contribution of biological nitrogen fixation for sustainable agricultural systems in the tropics

    Robert M. Boddey;João Carlos De Moraes Sá;Bruno J.R. Alves;Segundo Urquiaga

  • Tillage effect on C stocks of a clayey Oxisol under a soybean-based crop rotation in the Brazilian Cerrado region

    Cláudia P. Jantalia;Dimas V.S. Resck;Bruno J.R. Alves;Lincoln Zotarelli

  • The role of arbuscular mycorrhiza in legume symbiotic performance

    P.M. Chalk;R. de F. Souza;S. Urquiaga;B.J.R. Alves

Frequent Co-Authors

Robert M. Boddey
Robert M. Boddey Brazilian Agricultural Research Corporation
Bruno José Rodrigues Alves
Bruno José Rodrigues Alves Brazilian Agricultural Research Corporation
Veronica Massena Reis
Veronica Massena Reis Brazilian Agricultural Research Corporation
Lincoln Zotarelli
Lincoln Zotarelli University of Florida
José Ivo Baldani
José Ivo Baldani Brazilian Agricultural Research Corporation
Celso Aita
Celso Aita Universidade Federal de Santa Maria
Johanna Döbereiner
Johanna Döbereiner Brazilian Agricultural Research Corporation
Georg Cadisch
Georg Cadisch University of Hohenheim
Ken E. Giller
Ken E. Giller Wageningen University & Research
Fábio Luiz Partelli
Fábio Luiz Partelli Universidade Federal do Espírito Santo

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