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Publications
1
Citations
56
H-Index
Active since
1983
J. R. deFreitas is an author specializing in agricultural economics, sustainable agriculture, and plant pathology.
Top concepts
BotanyBiologyGeneticsEngineeringCrop SciencePublic HealthBiogeochemistryPlant PathologyPlant PhysiologyMicrobial Ecology
Publications per year
1983–1983
<sup>15</sup>N isotope dilution to quantify dinitrogen (N<sub>2</sub>) fixation associated with Canadian and Brazilian wheat
R. J. Rennie, J. R. deFreitas, Alaídes Puppin Ruschel et al. · Canadian Journal of Botany · 1983 · 56 citations
Biology, Biogeochemistry, Engineering +15
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