Which PG diplomas can I pursue in Canada, after BSc Agriculture?

You can very easily pursue a PG diploma in Agriculture in Canada.

Here is a list of the best universities to consider:
1. Lakehead University

2. University of Alberta

3. University of Lethbridge

4. University of New Brunswick

5. McGill University

6. University of Saskatchewan

7. Dalhousie University 

8. Vancouver Island University 

9. Niagara College

10. University of Guelph

Let me know if you need any help or more information from my end.