Research Findings

Research Achievements and Major Findings

We are proud to declare here that the Department of Soil Science has made some outstanding contributions in Bangladesh agriculture which are playing a significant role in achieving self-sufficiency in food.

  1. Soil Testing Kit: The Department has developed a Soil Testing Kit with the assistance of Alexander Von Humboldt Foundation, Germany for testing major plant nutrients in soil.
  2. Rhizobium biofertilizer: Development of Rhizobium biofertilizer for different legume crops is another big research achievement of the Department of Soil Science.
  3. Clay mineralogical map of Bangladesh
  4. Management of zinc deficiency in rice and boron deficiency in wheat.
  5. Development of composting technique.
  6. BR 3 and BRRI dhan47 were identified as with low grain arsenic varieties
  7. First time reported that arsenic limits trace mineral nutrition (selenium, zinc, and nickel) in Bangladesh rice grain.
  8. First time reported the elevated levels of Cd and Pb in rice grains in Bangladesh and their potential health risks.
  9. Identified OsPT1 gene that remediates arsenic transport from soil to shoot of rice.
  10. Organic amendment alleviates salinity effects on microorganisms and mineralization processes in aerobic and anaerobic paddy soils.
  11. Identified and characterized AtUK-UPRT1 gene involved in pyrimidine (precursor of DNA and RNA) biosynthesis in plants.
  12. Liming and organic amendments reduce soil acidity and improve crop productivity in Madupur Tract and Northern & Eastern Piedmonts Plains.
  13. Addition of silicon fertilizers significantly decreased arsenic concentration in rice grains.
  14. Through proper management of organic amendments, potassium and zinc fertilizers we can ease the salinity stress in rice. Also, aluminium toxicity of acid soils in rice-maize cropping system can be managed by application of lime and phosphate fertilizer.
  15. Combination of different characteristics contributes for salinity tolerance in rice. BINA dhan 10 showed a higher tolerance to salinity stress than the other genotypes.
  16. Development of rice parboiling method for removing inorganic arsenic
  17. Discovered the contribution of sub-soil denitrification to reactive nitrogen removal from the environment.
  18. First time reported N20 and NH3 emission factors for wheat and rice in Bangladesh.
  19. Urea Deep Placement greatly reduced NH3 volatilization, N2O and CH4 emissions compared to broadcast Prilled Urea. Cow dung in combination with prilled urea increased CH4 emission compared to prilled urea alone.
  20. The emission factors (% N applied) for urea briquette were 0.12, 0.14 & 0.17 in Boro, T. Aus and T. Aman rice, respectively and for prilled urea they are 0.40, 0.46 & 0.55, respectively.
  21. Water Management “Alternate Wetting and Drying (AWD) practice had no yield penalty over Continuous Standing Water (CSW) in boro rice and it helps to reduce the CH4 emission by 10% compared to CSW condition.
  22. Arsenic levels in rice are dominated by the location and variety and the daily intake of inorganic arsenic from rice varied significantly. The excess cancer risk higher than ranged used by the US EPA as a threshold and the 2–10 age group experiences higher carcinogenic risks than others and females are more susceptible than males.
  23. The concentrations of arsenic in rice grains are cultivar dependent and Bangladeshi rice varieties contents >80% inorganic arsenic that has five times higher bioavailability than organic arsenic. Bioavailability of arsenic from rice varied between 25% and 94% based on varieties and salt tolerance and brown rice have higher arsenic contents but lower bioavailability.
  24. Alternate Wetting and Drying irrigation practice reduced 17% to 35% of grain arsenic concentration with 7% to 38% increase in rice grain yield.
  25. Smart-water solution a web-based interphase and mobile apps developed in collaboration with Keio University Japan and Calcata University India.
  26. SIPE (Safe Water Adaptability Index) Approach for micro level water planning.
  27. First time Digital Agricultural Vulnerability and Hazard Mapping at agricultural block level in Bangladesh.
  28. Growth and yield enhancement of cereal and vegetable crops by use of bio-stimulants.
  29. Physiological functions of signaling molecules in plant abiotic stress responses and tolerance.
  30. Mineralization potential of different organic manures integrated with chemical fertilizers in rice-based cropping pattern.