The primary advantage of farm subsidies is for the farmer to make a profit. Without subsidies farmers would loose money because the prices paid for farm products is too low.

Subsidies help the supply of food to be abundant therefore lowering the cost of food for the general public.

Robert D Reinsel has written:

'The distribution of farm program payments, 1987' -- subject(s): Agricultural subsidies, Statistics

'Aspects of farm finances' -- subject(s): Agricultural subsidies, Farm income

You would probably have to search by state. Do a google search for your state with "farm subsidies" you should come up with something

A trustee

$7.5 billion