All Stories

  1. Cropping Patterns Shape Soil-Dwelling Nematode Communities in the Mekong Delta Paddy Fields

    Article • Conservation, July 2026, MDPI AG

    Koki Toyoda

  2. Effects of Rice Straw Mulching on Nematode Communities in Upland-Paddy Rice Systems in Salt-Affected Soils

    Article • Crops, May 2026, MDPI AG

    Koki Toyoda

  3. Potential risk of P loss in salt-affected acidic soils amended with biochar or compost

    Article • Journal of soil science and plant nutrition, November 2025, Springer Science + Business Media

    Koki Toyoda

  4. Influence of rice straw mulching on soil available silicate and maize growth in paddy fields affected by saline intrusion in the Mekong River Delta, Vietnam

    Article • May 2025, Springer Science + Business Media

    Koki Toyoda

  5. Effects of Mung Bean Residue Return and Biochar Amendment Combined with Reduction in Inorganic Fertilizer on Rice Yield and Nutrient Uptake: A Case Study in Mekong Delta, Vietnam

    Article • Agronomy, January 2025, MDPI AG

    Koki Toyoda

  6. Distribution of the soybean cyst nematode, Heterodera glycines, in green soybean cultivation areas of Japan and its control measures

    Article • Nematology, November 2024, De Gruyter

    Koki Toyoda

  7. Occurrence of a population of the root‐knot nematode, Meloidogyne incognita, with low sensitivity to two major nematicides, fosthiazate and fluopyram, in Japan

    Article • Pest Management Science, October 2024, Wiley

    Koki Toyoda

  8. Comparative Analysis of Japanese Soils: Exploring Power Generation Capability in Relation to Bacterial Communities

    Article • Sustainability, May 2024, MDPI AG

    Koki Toyoda

  9. Evaluation of Soil Suppressiveness of Various Japanese Soils against the Soybean Cyst Nematode Heterodera glycines and Its Relation with the Soil Chemical and Biological Properties

    Article • Agronomy, November 2023, MDPI AG

    Koki Toyoda

  10. Effect of short-term growth of mung bean and its incorporation with nitrogen fertiliser on the density of the root-knot nematode, Meloidogyne incognita, in soil

    Article • Nematology, August 2023, Brill

    Koki Toyoda

  11. Effects of Rice Husk Biochar and Compost Amendments on Soil Phosphorus Fractions, Enzyme Activities and Rice Yields in Salt-Affected Acid Soils in the Mekong Delta, Viet Nam

    Article • Agronomy, June 2023, MDPI AG

    Koki Toyoda

  12. Transmissible Effects of a Biochar Amendment to an Upper Soil Zone Upon an Associated Lower Zone, Including Attenuation of Soybean Cyst Nematode (Heterodera glycines)

    Article • Agronomy, December 2022, MDPI AG

    Koki Toyoda

  13. Geographical distribution and phylogenic relationships of Lotus Root Nematodes.

    Article • Nematology, December 2022, De Gruyter

    Takagi Motonori, Koki Toyoda

  14. Effects of Four Isothiocyanates in Dissolved and Gaseous States on the Growth and Aflatoxin Production of Aspergillus flavus In Vitro

    Article • Toxins, November 2022, MDPI AG

    Koki Toyoda

  15. A Biochar Improves the Efficacy of Green Manure-Based Strategies to Suppress Soybean Cyst Nematode (Heterodera glycines) and Promotes Free-Living Nematode Populations

    Article • Journal of soil science and plant nutrition, June 2022, Springer Science + Business Media

    Koki Toyoda

  16. Influence of Rice Husk Biochar on Soil Nematode Community under Upland and Flooded Conditions: A Microcosm Experiment

    Article • Agronomy, February 2022, MDPI AG

    Koki Toyoda

  17. Impacts of Fallow Conditions, Compost and Silicate Fertilizer on Soil Nematode Community in Salt–Affected Paddy Rice Fields in Acid Sulfate and Alluvial Soils in the Mekong Delta, Vietnam

    Article • Agronomy, February 2021, MDPI AG

    Koki Toyoda

  18. Distribution of Pigeon Pea Cyst Nematode and Root-Knot Nematodes in Major Sesame Growing Areas in Myanmar

    Article • Agronomy, September 2020, MDPI AG

    Koki Toyoda

  19. Suppression of the soybean cyst nematode, Heterodera glycines, by short-term field cultivation and soil incorporation of mung bean

    Article • Nematology, August 2020, Brill

    Koki Toyoda

  20. Plant-parasitic nematodes in some economically important crops in Myanmar – species, possible damage and control measures

    Article • Nematology, January 2018, Brill

    Koki Toyoda

  21. Effect of Heterodera glycines and soil chemical and biological cultivation factors on the yield of green soybean grown in a glasshouse in Japan

    Article • Nematology, January 2017, Brill

    Koki Toyoda

  22. Effect of short-term growth of mung bean and its soil incorporation on the density of the soybean cyst nematode, Heterodera glycines, in pot experiments

    Article • Nematology, January 2017, Brill

    Koki Toyoda

  23. Development of a quantification method with real-time PCR for three Pratylenchus species causing damage to chrysanthemum in Japan

    Article • Nematology, January 2016, Brill

    Koki Toyoda

  24. Development of real-time PCR primers for the quantification of Meloidogyne graminicola, Hirschmanniella oryzae and Heterodera cajani, pests of the major crops in Myanmar

    Article • Nematology, January 2016, Brill

    Koki Toyoda

  25. Effect of biogas slurry application on CH4and N2O emissions, Cu and Zn uptakes by whole crop rice in a paddy field in Japan

    Article • Soil Science & Plant Nutrition, May 2014, Taylor & Francis

    Aye Thida Win, Dingjiang Chen, Koki Toyoda

  26. Development of specific primers to Hirschmanniella spp. causing damage to lotus and their economic threshold level in Tokushima prefecture in Japan

    Article • Nematology, January 2013, Brill

    Koki Toyoda

  27. Suppression of Meloidogyne incognita in different agricultural soils and possible contribution of soil fauna

    Article • Nematology, January 2013, Brill

    Koki Toyoda

  28. Effect of bean sprout residue on the hatching and density of the soybean cyst nematode Heterodera glycines in soil

    Article • Nematology, January 2013, Brill

    Koki Toyoda

  29. A novel nematode diagnostic method using the direct quantification of major plant-parasitic nematodes in soil by real-time PCR

    Article • Nematology, January 2012, Brill

    Koki Toyoda