Social Impacts
Of course a big thing that is impacted would be the trading that goes on with different countries all over the world. Also like the Inca the people who work together in a farm have to interact to make sure everything runs smoothly. There are also certain foods that go with religious holidays, like for example during holidays like Christmas the Peruvian food is typically served with Peruvian drinks like chicha morada.
Economic Impacts
Since farming is 30% of the country's populations job, with ought it there would be many jobless people not being able to pay taxes or even feed themselves. It is also how the country makes a lot of their money, by selling and/or trading various types of crops. Also the more food there is, the more the population is able to expand. Expansion can be looked as a good and a bad thing. Whats good is there could be more workers contributing to the society and a bad thing could be that with a expansion of population there needs to be an expansion of territory.
Environmental Impacts
Of course if we want to make room for farming there is going to be deforestation. This is a sad reality, but it happens all the time all over the world especially in the rain forest located in Peru. Also according to
http://www.sustainabletable.org/491/food-economics because of the overuse of antibiotics air quality, the contamination of rivers, streams, and coastal water with concentrated waste are contaminated.