Department of Plant, Soil and Microbial Sciences Kravchenko Lab

Degrees:

M.S- Punjab Agricultural University, Ludhiana, Punjab, India (2022-2024)

B.S- Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal, India (2018-2022)

Publications:

Ghosh, T., Sharma, S., & Walia, S.S. (2026). Continuous Integrated Nutrient Management Practices for 40 Years Promote Soil Enzyme-based Functional Indices in Rice-wheat System. Journal of Soil Science and Plant Nutrition, 1-18. https://doi.org/10.1007/s42729-026-03012-2

Sharma, S., Ghosh, T. & Walia, S.S. (2026) Continuous nutrient management practices for 40 years enhances soil carbon, enzymes and microbial indices in rice-wheat system. Environmental Earth Sciences 85, 140. https://doi.org/10.1007/s12665-026-12863-y

Ghosh, T., Sharma, S., & Walia, S. S. (2025). Soil enzymes stoichiometry and microbial metabolic limitation under diverse nutrient management practices in rice-wheat cropping system: Insight from a 40-year long-term field experiment. Total Environment Microbiology, 100030. https://doi.org/10.1016/j.temicr.2025.100030

Research Interests:

My overarching research interest lies in understanding how climate variability and land-use change regulate soil carbon (C) dynamics across spatial and temporal scales. I focus on the mechanisms governing soil organic matter stabilization and turnover by integrating soil structure, biogeochemical processes, and microbial activity to evaluate long-term soil functioning under environmental change.

My current research investigates temperature-driven changes in total C and nitrogen (N) through a long-term soil translocation experiment with undisturbed cores relocated from cooler to warmer

climates. Using X-ray computed tomography (CT), I characterize soil structural integrity and pore architecture to link micro-scale physical organization with macro-scale biogeochemical responses.

Additionally, I compare agricultural and forest soils across depths, evaluating physical properties, organic matter fractions, C and N contents, enzyme activities, and microbial biomass to assess controls on C stabilization and nutrient cycling.

During my MSc, I worked in a 40-year integrated nutrient management experiment, assessing aggregate stability, total C and N, microbial biomass (C, N, P), and nutrient-cycling enzymes in soils. I also examined how dry and wet sieving influence soil structure, microbial activity, and carbon distribution.

Collectively, my research integrates soil structure, organic matter fractions, and microbial functionality to understand how environmental drivers reshape soil systems from the pore scale to ecosystem scale.