hi,

see bsc agriculture course is related with horticulture, farm technology, corps growing maintenance, different type of pesticides works etc . apart from teaching you may work as an agriculture supervisor, research fellow in  Research and development organization. however for career growth msc or mba course in agriculture is necessary. bsc in biotechnology course deals with cellular and bio molecular processes for the development of a variety of technologies and products which  contribute toimprove drugs, fmgc products and human life. however you may work as a laboratory assistant, research assistant, manufacturing supervisor roles. since it is quite research oriented work master course is needed for career growth and to work in core biotechnology farms.

hope it would help.