PI: Rajan Ghimire, Ph.D.

Cropping Systems and Soil Management Laboratory
My research focuses improving efficiency, profitability, and soil environmental quality in dryland and limited-irrigation cropping systems. I am interested in soil organic matter dynamics, nutrient cycling,  soil-plant relations, and greenhouse gas emissions, soil organic matter-microbial community interactions, and their relationships with sustainable crop production and ecosystem services.
Department of Plant and Environmental Sciences

Lab Manager/Research Associate
Joining soon

Prospective students
We are always looking for highly motivated, good graduate students, interested in interdisciplinary approach in cropping systems research. Please, take a look at my program and see if that is similar to your research interest. Interested students contact Dr. Rajan Ghimie at

Current students

Pramod Achayra, 2017-2019: Evaluating soil profile C and N dynamics, soil health, and soil structure under diverse cover crops limited-irrigation winter wheat-sorghum-fallow. The main goal of my research is to increase crop diversity and improve soil resilience in while transitioning crop production in limited irrigation to dryland crop production.  

Role: Co-advisor (ENMU)

Mikayla J. Allan, 2017-2018: Evaluating effects of corn row spacing, silage cutting heights, and cover crops on soil health; specifically C and N dynamics within Heritage Dairy Farm located on the outskirts of Clovis, NM. Maps will  be created to illustrate the spatial variability of nutrients within the field before and after the treatment applications. I am also monitoring soil hydraulic properties of small watershed in Jornada Rangeland Research site in my second project. 

Role: Major advisor

Vesh R. Thapa, 2016-2018: Evaluating soil health and crop production in dryland cropping systems.  I am comparing soil health indicators such as active C, mineralizable C, available N, soil aggregation, and crop yields under different tillage and cover cropping in drylands. Overall, the research is addressing the essence of reduced tillage and crop diversification for soil conservation and sustainable crop production in drylands of New Mexico.

Role: Major advisor

Recent graduates

Vesh R. Thapa, 2016-2018: Agricultural management systems affect soil health and crop production in drylands of Eastern New Mexico (Role: Major advisor). Continuing as a Ph.D. Student with me at NMSU. 

Binod Ghimire, M.S., 2017, Cover crops effects on soil organic matter dynamics, weed suppression and crop yield in a limited-irrigated winter wheat-summer fallow system (Role: Co-advisor), Currently Ph.D. Student at University of Illinois Urbana-Champaign, IL. 

Visiting students/scholars

Yaqiong Fan, China Agricultural University, Simulating SOC dynamics and GHG emissions in cropping systems using DayCent Model, Sept.-Oct. 2017.