B.Tech agriculture and B.Sc agriculture are different courses. B.Tech agriculture is an engineering course and candidates have to appear for the entrance examination for admission to Agricultural colleges for B.Tech. courses. But B.Sc agriculture is an agriculture science course and candidate need not write any entrance exam. The basic eligibility criteria for B.Sc Agriculture Science is 10+2 or equivalent with science subjects with a minimum 50% marks.For more details on agriculture engineeringclick here.
For more details on agriculture science click here.