Hey, If you are preparing for the agriculture entrance exam then I would recommend you to read A competitive book of agriculture by Surahee Publications, Indian forest service(agriculture) by R.Gupta, Master guide agriculture science by Pushpendra kumar karhana, General Agriculture book by Roop Singh Maitry, 800 Important facts of agriculture,

And also refer the below given link for the current revolutions made in agriculture

https://www.bankexamstoday.com/2017/02/list-of-important-agricultural.html

Hello!!

Hope you are doing great!!!

You did not mentioned the name of the entrance exam ,KIndly helps us by mentioning the name of the entrance exam ,then we can able to provide you the answer.

If you are asking about ICAR UG Preparation books,then here are some books :

NTA-ICAR: AIEEA-UG Entrance Exam Guide- R. Gupta

ICAR Syllabi (BSc Agriculture) -Dr. Rajeev Bairathi,R.K. Gupta

Ready Reckoner for ICAR-AIEEA (UG) - R.K. Sharma,U. D. Chavan

Hope i helps you!!!