Picture of  Renato de Freitas

Renato de Freitas Manager, Soil Science Analytical Laboratory

5D22 - Agriculture Building


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