I would suggest you to go for B.Sc in Agriculture as this would be the best choice for you as per your interest. Also, if you choose this course then the tota duration for the same will be 4 years in which you will have to appear in 8 semesters. The application process varies college to college so it would be better if you can share which particular college and university you want to go for accordingly I would be helping you with the admission process.

Good Luck!!!