• Instrumentation and monitoring for greenhouse gas emissions automated systems (Li-Cor, Teledyne, Los Gatos Research). • Experimental assessment of nitrification and denitrification pools of N2O in continuous automated microplot IRGA studies. • Modeling of GHG emissions from cropping systems (CropSyst). Data analysis in Matlab, Igor, Visual Basic, SAS, ArcGIS. • Peer reviewer for American Water Resources Association,Waste Management journal, Journal of Environmental Quality, Ecological Engineering, Compost Science and Utilization. • Invited presenter for symposium-Challenges in Measuring Greenhouse Gas Emissions From Soil. 2012 ASA-CSA-SSSA International Annual Meetings. Cincinnati, OH. October 21-24.

• Experimental techniques of flow injection colorimetric analysis and ion chromatography (Lachat 8500), ICP-AES, Variomax CNS analyzer, Shimadzu/HP GC with ECD, FID, TCD, HPLC, x-ray diffraction, dataloggers. • Data analysis in Matlab, SAS 9.3.1 proc GLM, MIXED, NLIN, REG, including ANOVA, time series analysis and linear/nonlinear regression.

• Experimental design and studies on nutrient management, cycling of C, N, P and K in flooded rice soils, greenhouse gas emissions in rice, sorghum, sugarcane production systems. Preparation of reports and manuscripts. • Supervised the laboratory on soil nutrient management including colorimetric analysis for N and P (Seal analyzer), and organic C and N analysis (Shimadzu TOC analyzer) in extracts. • Graduate student competition judge at Southern branch ASA meeting. Corpus Christi, TX, February 2011.

• Studies on nutrient management, surface runoff and groundwater water quality and greenhouse gas emissions in short rotation forestry, rangeland, and cropping systems. • Experimental design and maintenance of field/greenhouse/laboratory studies, soil and biosolids fractionation of C, N and P, analysis of groundwater leachate, greenhouse gas emission and plant growth response. Preparation of reports and manuscripts. • Experimental techniques of flow injection colorimetric analysis and ion chromatography (Lachat 8500), ICP-AES, Variomax CNS analyzer, GC with ECD, FID, TCD, HPLC, x-ray diffraction, dataloggers. • Data analysis in SAS 9.3.1 proc GLM, MIXED, NLIN, REG, including ANOVA, time series analysis and linear/nonlinear regression, ChemSketch 8.0, Visual MINTEQ 2.61.

• Laboratory studies on saturated hydraulic conductivity and shrink-swell tests on triaxial apparatus, with unconfined and confined measurement techniques.

• Range and forest soils and water quality analysis for metals and hydrocarbon contamination due to industrial operations (Yukos/Rosneft, Rusal, Tulachermet). • Chemical analysis of hazardous and non-hazardous municipal and industrial wastes, biological survival tests on Daphnia magna and Paramecium caudatum.