GUNAVATHY SELVARAJH

Verified @gmail.com

Faculty of Agro Based Industry
Universiti Malaysia Kelantan

GUNAVATHY SELVARAJH


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https://researchid.co/gunavathy92

EDUCATION

PhD in Agro Technology

RESEARCH INTERESTS

Agronomy, Soil amendments, Weed management, Waste management
16

Scopus Publications

112

Scholar Citations

6

Scholar h-index

4

Scholar i10-index

Scopus Publications

  • Integrated Aquaponic Vertical Farming as An Approach to Organic Agriculture: A Review
    Y. Alajeli, G. Selvarajh
    Anbar Journal of Agricultural Sciences, 2025
    Integrated aquaponic vertical farming (IAVF), which combines aquaponics and vertical farming, is considered a modern and environmentally friendly method of farming. It takes sustainability a step further by making greater use of available resources, space, and the environment. This approach enables the co-farming of fish alongside plant growth using hydroponic methods, utilizing water instead of soil, in a vertically stacked system. This integration of aquaculture and hydroponics enables plants and fish to be cultivated together, with the waste produced from one system serving as nutrients for the other, thus closing the biological cycles of agriculture. IAVF is based on concepts of a circular economy and gradual farming expansion that seek to address contemporary food production challenges, such as the lack of freshwater, soil degradation, and greenhouse gas emissions. This overview presents the concept of IAVF, its historical development, and discusses the use of organic-based fertilizers for agricultural sustainability. It also states the aim and outline of the review article
  • Exploring the Science of Food as Medicine
    Exploring the Science of Food as Medicine, 2025
  • Preface
    Exploring the Science of Food as Medicine, 2025
  • Foods for Health and Disease Prevention
    Udugalage Isuru Harsha Kumara, Welisarage Crista Ridmie Sumilaka Fernando, Gunavathy Selvarajh
    Exploring the Science of Food as Medicine, 2025
    Superfoods have captivated global attention with claims of enhanced health benefits beyond basic nutrition. This chapter examines their journey from traditional remedies to marketing phenomena, analyzing both scientific evidence and cultural significance. While rich in bioactive compounds like antioxidants and polyphenols that show promise for disease prevention and microbiome health, many superfood claims lack rigorous scientific validation. The research reveals that traditional healthy foods often provide comparable benefits at lower costs, highlighting accessibility issues.
  • Food as Medicine in Nutrition and Microbiology Perspectives
    Udugalage Isuru Harsha Kumara, Welisarage Crista Ridmie Sumilaka Fernando, Gunavathy Selvarajh
    Exploring the Science of Food as Medicine, 2025
    The concept of “food as medicine” is rapidly gaining momentum, bridging traditional wisdom with cutting-edge scientific research. This chapter explores the historical evolution of food's role in health, from its cultural roots in ancient medicinal practices to its disease prevention and treatment in the 21st-century integration into modern healthcare systems. Defining this paradigm's scope and contemporary relevance, the discussion establishes a foundation for understanding how food contributes to medicine. The science of nutritional therapeutics highlights bioactive compounds such as flavonoids, probiotics, and omega-3 fatty acids, which influence cellular and molecular pathways to deliver therapeutic benefits. Mechanisms like anti-inflammatory responses, antioxidant activity, and immune modulation are explored, focusing on functional foods and nutraceuticals. The gut-brain axis is a pivotal area of study, shedding light on the impact of diet on mental health and cognitive function.
  • The efficacy of coating anthracnose-infected chili seed with 1-deoxynojirimycin (1-DNJ) extracted from mulberry leaves on seed germination and seedling growth
    Tropical Agriculture, 2024
  • Enriched rice husk biochar superior to commercial biochar in ameliorating ammonia loss from urea fertilizer and improving plant uptake
    Gunavathy Selvarajh, Huck Ywih Ch'ng, Norhafizah Md Zain, Lee Seong Wei, Jeng Young Liew, Siti Nuurul Huda Mohammad Azmin, Laila Naher, Palsan Sannasi Abdullah, Osumanu Haruna Ahmed, Mohamadu Boyie Jalloh, Issariyaporn Damrongrak
    Heliyon, 2024
    Adding value to agricultural leftovers and turning them into biochar is a viable way to replenish soil nutrients and boost crop productivity. To further validate the efficacy of enriched rice husk biochar, an incubation study and a pot experiment were conducted: (1) to describe the effect of enriched rice husk biochar addition on soil total N, soil exchangeable NH4+ and available NO3- and (2) to describe the effect of enriched rice husk biochar on improving N, P, K, Ca, and Mg uptake, use efficiency, and dry matter production of rice plants. The amount of NH3 loss that was considerably reduced by rice husk biochar at 5 and 10 t ha-1 was 34% lower than the control. The availability of soil total N, exchangeable NH4+, available NO3-, available P, and exchangeable cations was greatly enhanced by the addition of rice husk biochar. Due to the effective nutrient uptake that occurs with an increase in soil nutrient level, the physical growth of the rice plant (height, tiller number, greenness, and panicle number) increeased significantly in treatments supplemented with 5 t ha-1 rice husk biochar. When rice plants were treated with 5 t ha-1 rice husk biochar, their absorption of N, P, and K increased by >80%, respectively. The production of dry matter in rice plants increased as a result of the increased N intake. The application of 5 t ha-1 of rice husk biochar enhanced the soil nutrients by reducing NH3 loss and augmenting soil nutrients for efficient plant absorption, as demonstrated by the favourable enhancement of soil macro- and micronutrients and biomass of rice plants.
  • Synergistic effect of urea and pendimethalin on Eleusine indica suppression and rice growth performance in an aerobic rice system
    Tropical Agriculture, 2023
  • Enriched rice straw biochar improves soil nitrogen availability and rice plant growth under waterlogged environment
    Gunavathy Selvarajh, Huck Ywih Ch’ng, Norhafizah Binti Md Zain, Osumanu Haruna Ahmed, Mohamadu Boyie Jalloh, Issariyaporn Damrongrak, Jeng Young Liew, Siti Nuurul Huda Mohammad Azmin, Laila Naher
    Bragantia, 2023
    Ammonia volatilisation causes major nitrogen losses from the soil and applied urea which results in low urea-N usage efficiency. Incubation experiment and pot experiment were conducted to assess the effect of enriched rice straw biochar on ammonia volatilisation, soil pH, exchangeable ammonium, available nitrate, and rice plant growth in comparison to the urea without additives under waterlogged conditions. During the incubation study, urea was amended with different rates of enriched rice straw biochar (5, 10, 15, and 20 t ·ha-1). Urea amended with biochar at 5 to 10 t·ha-1 had successfully minimized ammonia loss compared to urea without biochar. Besides, application rate of 5 to 10 t·ha-1 of biochar also preserved more ammonium ions (65.37% and 66.54%, respectively), while at the same time, the retention of nitrate ions was 50.9% and 45.3% over urea without biochar. Similarly, 5 to 10 t·ha-1 of enriched rice straw biochar increased soil N level and improved rice plant growth significantly in pot experiment. Precisely, incorporation of enriched rice straw biochar at rate of 5 and 10 t·ha-1 offers wide variety benefits to soil amendments and rice plant nutrient uptake. Hence, the findings suggest that urea amended with enriched rice straw biochar altered the nutrients level in soil by improving rice plant growth.
  • Reducing Ammonia Volatilization from Urea Fertilizer Applied in a Waterlogged Tropical Acid Soil via Mixture of Rice Straw and Rice Husk Biochars
    Gunavathy SELVARAJH, Huck Ywıh CHNG
    Tarim Bilimleri Dergisi, 2022
    Nitrogen deficiency frequently occurs in agricultural soil because of ammonia volatilization to the environment, resulting in low urea-N use efficiency by plants. A laboratory incubation experiment was conducted to assess the effect of rice straw and rice husk biochar's on ammonia volatilization, soil pH, exchangeable ammonium, and available nitrate in comparison to the urea without additives under waterlogged conditions. Application of rice straw and rice husk biochar's mixture at application rate 5-10 t ha -1 had significantly minimized ammonia volatilization by 30.86% -38.61% over T1 (175 kg ha -1 urea). T2 (5 t ha -1 ) and T3 (10 t ha -1 ) also had significantly increased retention of ammonium by 79% -95% and nitrate ions by 49% -51% over control. The treatments amended with biochar had successfully improved soil pH compared to T0 (soil only) and T1. Hence, the findings suggest that urea amended with rice straw and rice husk biochar's altered the nutrients level in the soil by minimizing ammonia loss to enhance nitrogen availability in waterlogged conditions.
  • Enhancing soil nitrogen availability and rice growth by using urea fertilizer amended with rice straw biochar
    Gunavathy Selvarajh, Huck Ywih Ch’ng
    Agronomy, 2021
  • Enriched rice husk biochar minimizes ammonia loss from applied urea fertilizer under waterlogged environment
    Philippine Agricultural Scientist, 2021
  • Article improving soil nitrogen availability and rice growth performance on a tropical acid soil via mixture of rice husk and rice straw biochars
    Gunavathy Selvarajh, Huck Ywih Ch’ng, Norhafizah Md Zain, Palsan Sannasi, Siti Nuurul Huda Mohammad Azmin
    Applied Sciences Switzerland, 2021
  • Effects of rice husk biochar in minimizing ammonia volatilization from urea fertilizer applied under waterlogged condition
    Gunavathy Selvarajh, , Huck Ywih Ch'ng, Norhafizah Md Zain
    Aims Agriculture and Food, 2020
  • Herbicidal activity of pre and post emergent herbicide on control eleusine indica in aerobic rice system
    Pakistan Journal of Botany, 2018
  • Effect of N fertilizer on the emergence and seedling growth of Eleusine indica in aerobic rice systems
    Gunavathy Selvarajh, , Norhafizah Md Zain, Chuah Tse Seng, , and
    Plant OMICS, 2017

RECENT SCHOLAR PUBLICATIONS

  • Integrated Aquaponic Vertical Farming As An Approach To Organic Agriculture: A Review
    YA Alajeli, G Selvarajh
    Anbar Journal of Agricultural Sciences 23 (2), 1191-1202 , 2025
    2025.0
  • Role of Urban Farming in Promoting Sustainable Economic Development
    YA Alajeli, G Selvarajh
    Journal of Business and Social Review in Emerging Economies 11 (1), 41-54 , 2025
    2025.0
    Citations: 3
  • The efficacy of coating anthracnose-infected chili seed with 1-deoxynojirimycin (1-DNJ) extracted from mulberry leaves on seed germination and seedling growth
    NK Mukhtar, G Selvarajh, NM Zain, KAMA Rahman, N Sidek
    Tropical Agriculture 101 (4), 411-420 , 2024
    2024.0
    Citations: 1
  • Enriched rice husk biochar superior to commercial biochar in ameliorating ammonia loss from urea fertilizer and improving plant uptake
    G Selvarajh, HY Ch'ng, NM Zain, LS Wei, JY Liew, SNHM Azmin, L Naher, ...
    Heliyon 10 (11) , 2024
    2024.0
    Citations: 15
  • In Vitro Harvest
    ZB Harun, G Selvarajh, N Abd Rashid, NNNNM Daud
    Cellular Agriculture for Revolutionized Food Production, 109-127 , 2024
    2024.0
  • Unveiling the Science From Cells to Cultivated Food
    JS Kanathasan, D Nallappan, G Selvarajh, ZB Harun
    Cellular Agriculture for Revolutionized Food Production, 24-49 , 2024
    2024.0
  • The Environmental Impact of Cellular Agriculture
    G Selvarajh, F Yasmin, UIH Kumara, JS Kanathasan, D Nallapan
    Cellular Agriculture for Revolutionized Food Production, 50-66 , 2024
    2024.0
  • Enriched rice straw biochar improves soil nitrogen availability and rice plant growth under waterlogged environment
    G Selvarajh, HY Ch’ng, NBM Zain, OH Ahmed, MB Jalloh, I Damrongrak, ...
    Bragantia 82, e20230104 , 2023
    2023.0
    Citations: 6
  • Synergistic effect of urea and pendimethalin on Eleusine indica suppression and rice growth performance in an aerobic rice system
    G Selvarajh, NM Zain, HY Ch'ng
    Tropical Agriculture 100 (1), 59-67 , 2023
    2023.0
    Citations: 1
  • Reducing ammonia volatilization from urea fertilizer applied in a waterlogged tropical acid soil via mixture of rice straw and rice husk biochars
    G Selvarajh, HY Chng
    Journal of Agricultural Sciences 28 (2), 269-277 , 2022
    2022.0
    Citations: 6
  • Enhancing soil nitrogen availability and rice growth by using urea fertilizer amended with rice straw biochar
    G Selvarajh, HY Ch’ng
    Agronomy 11 (7), 1352 , 2021
    2021.0
    Citations: 29
  • Enriched Rice Husk Biochar Minimizes Ammonia Loss from Applied Urea Fertilizer Under Waterlogged Environment [RESEARCH NOTE]
    G Selvarajh, HY Ch'ng, NM Zain, I Damrongrak
    The Philippine Agricultural Scientist 104 (2), 5 , 2021
    2021.0
    Citations: 1
  • Improving soil nitrogen availability and rice growth performance on a tropical acid soil via mixture of rice husk and rice straw biochars
    G Selvarajh, HY Ch’ng, N Md Zain, P Sannasi, SNH Mohammad Azmin
    Applied Sciences 11 (1), 108 , 2020
    2020.0
    Citations: 29
  • Effects of rice husk biochar in minimizing ammonia volatilization from urea fertilizer applied under waterlogged condition
    G Selvarajh, HY Ch’ng, NM Zain
    AIMS Agriculture and Food 6 (1) , 2020
    2020.0
    Citations: 11
  • Herbicidal Activity of Pre and Post Emergent Herbicide on Control Eleusine Indica in Aerobic Rice System
    G Selvarajh, NM Zain, CT Seng, A Aminudin
    Pak. J. Bot 50 (2), 511-515 , 2018
    2018.0
    Citations: 4
  • Response of Eleusine indica L. Gaertn towards herbicides and N fertilizer in aerobic rice system
    G Selvarajh
    Universiti Malaysia Kelantan , 2018
    2018.0
  • Effect of N fertilizer on the emergence and seedling growth of'Eleusine indica'in aerobic rice systems
    G Selvarajh, N Md Zain, CT Seng
    Plant Omics 10 (5), 277-282 , 2017
    2017.0
    Citations: 3
  • Response of Eleusine indica to herbicides and N fertilizer in dry seeded rice
    MZ Norhafizah, S Gunavathy, TS Chuah, S Norsyafiqa, NI Nuradiba, ...
    African Journal of Agricultural Research 12 (29), 2398-2403 , 2017
    2017.0
    Citations: 3
  • Combined Effect of vanillin enriched with calcium lactate on tomato (Lycopersicon esculentum var. esculantum) quality
    G Selvarajh
    Faculty of Agro-Based Industry , 2016
    2016.0
  • Converting Paddy Residues into Enriched Biochar to Ameliorate Ammonia Loss from Urea Fertilizer for Efficient Plant Uptake
    G Selvarajh, HY Ch’ng, N Md Zain, L Seong Wei, JY Liew, ...
    Available at SSRN 4599359 , 0

MOST CITED SCHOLAR PUBLICATIONS

  • Enhancing soil nitrogen availability and rice growth by using urea fertilizer amended with rice straw biochar
    G Selvarajh, HY Ch’ng
    Agronomy 11 (7), 1352 , 2021
    2021.0
    Citations: 29
  • Improving soil nitrogen availability and rice growth performance on a tropical acid soil via mixture of rice husk and rice straw biochars
    G Selvarajh, HY Ch’ng, N Md Zain, P Sannasi, SNH Mohammad Azmin
    Applied Sciences 11 (1), 108 , 2020
    2020.0
    Citations: 29
  • Enriched rice husk biochar superior to commercial biochar in ameliorating ammonia loss from urea fertilizer and improving plant uptake
    G Selvarajh, HY Ch'ng, NM Zain, LS Wei, JY Liew, SNHM Azmin, L Naher, ...
    Heliyon 10 (11) , 2024
    2024.0
    Citations: 15
  • Effects of rice husk biochar in minimizing ammonia volatilization from urea fertilizer applied under waterlogged condition
    G Selvarajh, HY Ch’ng, NM Zain
    AIMS Agriculture and Food 6 (1) , 2020
    2020.0
    Citations: 11
  • Enriched rice straw biochar improves soil nitrogen availability and rice plant growth under waterlogged environment
    G Selvarajh, HY Ch’ng, NBM Zain, OH Ahmed, MB Jalloh, I Damrongrak, ...
    Bragantia 82, e20230104 , 2023
    2023.0
    Citations: 6
  • Reducing ammonia volatilization from urea fertilizer applied in a waterlogged tropical acid soil via mixture of rice straw and rice husk biochars
    G Selvarajh, HY Chng
    Journal of Agricultural Sciences 28 (2), 269-277 , 2022
    2022.0
    Citations: 6
  • Herbicidal Activity of Pre and Post Emergent Herbicide on Control Eleusine Indica in Aerobic Rice System
    G Selvarajh, NM Zain, CT Seng, A Aminudin
    Pak. J. Bot 50 (2), 511-515 , 2018
    2018.0
    Citations: 4
  • Role of Urban Farming in Promoting Sustainable Economic Development
    YA Alajeli, G Selvarajh
    Journal of Business and Social Review in Emerging Economies 11 (1), 41-54 , 2025
    2025.0
    Citations: 3
  • Effect of N fertilizer on the emergence and seedling growth of'Eleusine indica'in aerobic rice systems
    G Selvarajh, N Md Zain, CT Seng
    Plant Omics 10 (5), 277-282 , 2017
    2017.0
    Citations: 3
  • Response of Eleusine indica to herbicides and N fertilizer in dry seeded rice
    MZ Norhafizah, S Gunavathy, TS Chuah, S Norsyafiqa, NI Nuradiba, ...
    African Journal of Agricultural Research 12 (29), 2398-2403 , 2017
    2017.0
    Citations: 3
  • The efficacy of coating anthracnose-infected chili seed with 1-deoxynojirimycin (1-DNJ) extracted from mulberry leaves on seed germination and seedling growth
    NK Mukhtar, G Selvarajh, NM Zain, KAMA Rahman, N Sidek
    Tropical Agriculture 101 (4), 411-420 , 2024
    2024.0
    Citations: 1
  • Synergistic effect of urea and pendimethalin on Eleusine indica suppression and rice growth performance in an aerobic rice system
    G Selvarajh, NM Zain, HY Ch'ng
    Tropical Agriculture 100 (1), 59-67 , 2023
    2023.0
    Citations: 1
  • Enriched Rice Husk Biochar Minimizes Ammonia Loss from Applied Urea Fertilizer Under Waterlogged Environment [RESEARCH NOTE]
    G Selvarajh, HY Ch'ng, NM Zain, I Damrongrak
    The Philippine Agricultural Scientist 104 (2), 5 , 2021
    2021.0
    Citations: 1
  • Integrated Aquaponic Vertical Farming As An Approach To Organic Agriculture: A Review
    YA Alajeli, G Selvarajh
    Anbar Journal of Agricultural Sciences 23 (2), 1191-1202 , 2025
    2025.0
  • In Vitro Harvest
    ZB Harun, G Selvarajh, N Abd Rashid, NNNNM Daud
    Cellular Agriculture for Revolutionized Food Production, 109-127 , 2024
    2024.0
  • Unveiling the Science From Cells to Cultivated Food
    JS Kanathasan, D Nallappan, G Selvarajh, ZB Harun
    Cellular Agriculture for Revolutionized Food Production, 24-49 , 2024
    2024.0
  • The Environmental Impact of Cellular Agriculture
    G Selvarajh, F Yasmin, UIH Kumara, JS Kanathasan, D Nallapan
    Cellular Agriculture for Revolutionized Food Production, 50-66 , 2024
    2024.0
  • Response of Eleusine indica L. Gaertn towards herbicides and N fertilizer in aerobic rice system
    G Selvarajh
    Universiti Malaysia Kelantan , 2018
    2018.0
  • Combined Effect of vanillin enriched with calcium lactate on tomato (Lycopersicon esculentum var. esculantum) quality
    G Selvarajh
    Faculty of Agro-Based Industry , 2016
    2016.0
  • Converting Paddy Residues into Enriched Biochar to Ameliorate Ammonia Loss from Urea Fertilizer for Efficient Plant Uptake
    G Selvarajh, HY Ch’ng, N Md Zain, L Seong Wei, JY Liew, ...
    Available at SSRN 4599359 , 0