B.Sc Agriculture

In my opinion, definitely, B.Tech is better.
A B.Tech degree is a four-year degree. It enriches your practical knowledge and makes your CV look good. B.Tech includes a wide range of topics, a few of which are engineering math, basic and advanced biology, programming, chemical engineering, industrial biotech, mechanical engineering, electrical engineering, electronics and communication, genetic engineering, immunology, biomedical engineering and instrumentation, etc. It's a degree that's so vast that you have many choices for your future career- a software engineer, manager, research scientist, teacher, a pharmaceutical biotechnologist, environmentalist, and so on. Basically, it gives you a chance to explore various fields and understand where your interests lie.
B.Sc. degrees, on the other hand, are domain-specific and are extensively theoretical. They take three years for completion and do not provide enough hands-on experience as compared to B.Tech.
Rest, the choice is yours. Good luck.