Director
Designation
Director
Qualification
Ph.D (Soil Science)
Specialisation
Soil Science & Agricultural Chemistry
Phone Number
0471-2598553
Intercom
101
Email
byju.g@icar.org.in
Location
Head Quarters
C. Any Other Information

Technologies Developed

  1. Site specific nutrient management recommendations for cassava in India
  2. Site specific nutrient management recommendations for sweet potato in India
  3. Site specific nutrient management recommendations for elephant foot yam in India
  4. Site specific nutrient management recommendations for yams in India
  5. Site specific nutrient management recommendations for taro in India
  6. Site specific nutrient management recommendations for Chinese potato in India
  7. Site specific nutrient management recommendations for potato in India
  8. Zone-specific secondary and micronutrient inclusive customised fertilizer formulations were developed for cassava.
  9. Zone-specific secondary and micronutrient inclusive customised fertilizer formulations were developed for elephant foot yam.
  10. Zone-specific secondary and micronutrient inclusive customised fertilizer formulations were developed for sweet potato.
  11. Zone-specific secondary and micronutrient inclusive customised fertilizer formulations were developed for yams.
  12. Zone-specific secondary and micronutrient inclusive customised fertilizer formulations were developed for taro.
  13. Foliar liquid micronutrient formulations for cassava in acidic soils was developed and commercialised to M/S Linga Chemicals, Madurai through Agrinnovate, ICAR, New Delhi.
  14. Foliar liquid micronutrient formulations for cassava in neutral and alkali soils was developed and commercialised to M/S Linga Chemicals, Madurai through Agrinnovate, ICAR, New Delhi.
  15. Foliar liquid micronutrient formulation for sweet potato was developed and commercialised to M/S Linga Chemicals, Madurai through Agrinnovate, ICAR, New Delhi.
  16. Foliar liquid micronutrient formulation for elephant foot yam was developed and commercialised to M/S Linga Chemicals, Madurai through Agrinnovate, ICAR, New Delhi.
  17. Foliar liquid micronutrient formulation for yams was developed and commercialised to M/S Linga Chemicals, Madurai through Agrinnovate, ICAR, New Delhi.
  18. Ten online decision support tools were developed:
    1. CASSNUM – Nutrient decision support system for SSNM of cassava, developed and hosted at ICAR-CTCRI. Receives more than 2000 hits per month.
    2. CASSNUM 1.1 – A later version of CASSNUM, available as a stand-alone system in CD format.
    3. Sree Poshini – A mobile app for SSNM of tuber crops, available on the Google Play Store.
    4. FERTCALC_CTCRI – A decision support tool developed for SSNM of individual farms of ICAR-CTCRI.
    5. NRRPUP – Nutrient Recommendation for Raising Potato in Uttar Pradesh.
    6. NRPPP – Nutrient Recommendation for Potato Production in Punjab.
    7. NRTP-MP – Nutrient Recommendation Tool for Potato in Madhya Pradesh.
    8. Cassava Expert System – A web-based expert system that offers solutions to farmers, industrialists, and traders on cassava and its derived products.
    9. Variety Identifier – An online tool hosted at ICAR-CTCRI for identifying cassava varieties.
    10. Tuber Information Café – A comprehensive information platform for tuber crops, hosted at ICAR-CTCRI. Receives more than 2000 hits per month.
    11. Conducted 275 on-farm experiments / frontline demonstrations in major tuber crop growing zones. Yield increase through SSNM:
      • Cassava: 22% (+5 t/ha)
      • Elephant foot yam: 27.5% (+8 t/ha)
      • Sweet potato: 15% (+3 t/ha)
      • Yams: 18% (+4 t/ha)
      • Taro: 13% (+1 t/ha)
    12. SSNM could save 5-10% NPK. A 10% saving could reduce fertilizer use by 95 lakh kg, saving Rs. 32 crores annually and aiding climate change mitigation.
    13. Technology developed for real-time N management in cassava using LCC and SPAD-502 meter.
    14. Estimated boron uptake requirements and developed boron recommendations for sweet potato cultivation.
    15. Involved in the development and validation of two sweet potato growth simulation models: Madhuram and SPOTCOMS.
    16. Calibrated ECOCROP model of FAO for climate change studies of tropical tuber crops (cassava, sweet potato, elephant foot yam, yams) in India using geoinformatics tools.
    17. Developed optimal irrigation schedules and crop water production functions for cassava using CROPWAT model of FAO.
    18. Methodology for cassava acreage estimation using remote sensing and kernel-based fuzzy classification with Landsat 8 (in collaboration with IIRS, Dehradun).
    19. Methodology for cassava acreage and yield estimation using support vector machine (SVM) and Sentinel-2B multispectral imagery.
Research Experience
33 years

Soil Science & Agricultural Chemistry

Research Projects Implemented

  1. Institute Research Projects: 51
    As Principal Investigator (PI): 13, As Co-PI: 38
  2. External Grants Received: Rs. 2246.289 lakhs (18 Projects)
    As Principal Investigator / Project Team Leader: Rs. 1268.697 lakhs (9 Projects)
    As Co-Principal Investigator: Rs. 977.592 lakhs (10 Projects)

Publications

1. Books authored: 3
2. Webinar proceedings edited: 1
3. Journal edited as guest editor: 1
4. Chapters in multiauthored books: 17
5. Refereed Journal Articles: 135
6. Presentations in conferences etc.: 112
7. Technical bulletins: 15
8. Technical folders: 30
9. Technical leaflets: 38
10. Scientific popular articles: 191
11. TV Talks: 6
12. Radio Talks: 11
13. Talks in FB Live programmes: 2
14. Videos in YouTube channel: 17
  1. CHAI Achievers Award 2023 by Confederation of Horticulture Association of India, New Delhi.
  2. Fellow, Indian Society for Root Crops (ISRC), ICAR-CTCRI, Thiruvananthapuram, India.
  3. Fellow, Society for Horticulture Research and Development (SHRD), New Delhi, India.
  4. Fellow, Confederation of Horticulture Associations of India (CHAI), New Delhi, India.
  5. Resource person for the International Cassava Training Course, 6–18 October 2010, at Thailand organized by CIAT, Cali, Colombia.
  6. Dhiru Morarji Memorial Award, 2012 of Fertilizer Association of India for the best research paper published in Indian Journal of Fertilizers during the year 2011.
  7. Team Research Award for Best Centre of All India Network Programme on Organic Farming (AI-NPOF), ICAR during 2019–20.
  8. Best Research Paper Award by ICAR-CTCRI for the paper published in 2021: Raji P., R. Shiny and G. Byju. 2021. *Impact of climate change on potential geographical suitability of cassava and sweet potato vs rice and potato in India.* Theoretical and Applied Climatology 146: 941–960 (NAAS score 8.88).
  9. Best Research Paper Award for the paper published in *Current Horticulture* in 2017.
  10. Best Poster Paper Award at the International Conference on Tropical Root and Tuber Crops (ICTRT 2013), 9–12 July 2013, Thiruvananthapuram, India.
  11. National Merit Scholarship during 1980–81.
  12. ICAR Junior Research Fellowship in Soil Science during 1987–1989.
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