Picture of  Renato de Freitas

Renato de Freitas Manager, Soil Science Analytical Laboratory


Soil Science

Research Interests

Composition of Soil Microbial Populations in Relation to Nutrient Cycling
Development of Microbial Metabolites as Biocontrol Products for Crop Pests
Manure Application & Incidence of Soil Borne Human and Plant Pathogens in soil


B.Sc. (University of São Paulo – USP, Brazil); M.Sc. (Center for Nuclear Energy in Agriculture – USP); Ph.D. (University of Saskatchewan, Canada)

Selected Recent Publications

Germida, J.J. & de Freitas, J.R. 2008. Cultural Methods for endophytic and soil microorganisms. In: M. Carter and E. Gregorich (eds). Soil Sampling and Methods of Analysis, Chapter 29, p. 341-354, 2nd Edition, CSSMM. CRC Press, Boca Raton, FL.

De Freitas, J.R., Schoenau, J.J., Boyetchko, S.M. & Cyrene, S.A. 2003. Soil microbial populations, community composition, and activity as affected by repeated applications of hog and cattle manure in eastern Saskatchewan. Canadian Journal of Microbiology, 49: 538-548.

Germida, J.J., Siciliano, S.D., de Freitas, J.R. & Seib, A. 1998. Diversity of root-associated bacteria associated with field-grown canola (Brassica napus L.) and wheat (Triticum aestivum L.). FEMS Microbiology Ecology, 26:43-50.


Undergraduate courses:

• Soil Science 343 (Soil microbiology)
• Environmental Science 203 (Sampling and laboratory analysis)
• Soil Science 494 (Research and Thesis)

Graduate courses:

• Soil Science 803 (Instrumental techniques in soil research – Good laboratory