aoa to all respected members....

i have subjects zoology, psycholgy, forestry, and thinking to opt agriculture as my optional...but i wanna ask that can forestry and agriculture be opted togather or not? secondly, what is the best book for agriculture?

plzz help me in this regard. i will be much gratefull. because i am much confused.. actually i have no background of social science, but everyone suggesting me to take either journalism or persian of 200 , but i dnt hv interst in them...