Hello,
An agriculture officer has to ensure that all the agricultural practices & products are in lieu of the state & local regulations. His main task is to check, investigate, sample & test everything, so as to determine whether they are complying with the state & local rules and regulations.

To become a Agricultural Officer, you need to have a bachelor's degree in Agricultural engineering, biology or agriculture science.

Some of the best agricultural colleges in India are

• ICAR-Indian Agricultural Research Institute, Delhi
• G. B Pant University of Agriculture & Technology, Pantnagar
• Punjab Agricultural University, Ludhiana
• Haryana Agriculture University, Hisar
• Jayashankar Telangana State Agricultural University, Hyderabad
• Tamil Nadu Agricultural University
• Jawaharlal Nehru Krishi Vishwa Vidyalaya, JJabalpur

Once you complete your bachelor's degree, you can apply for an entry level job.  A fresher agricultural officer can get a salary of Rs 40000 to Rs 80000.
Hope it helps