Hydroponics farming is basically the growing of terrestrial plants using nutrients solutions, in water without any soil composition. This method of farming has a number of advantages – besides the fact that it is a very neat way of farming, it enables any farmer to produce crops of choice irrespective of the area they live in and whether the soil composition in the area supports the kind of crop they want to cultivate . . . see some basics step in setting up one: http://transenergize.com/2017/03/10/get-creative-how-to-start-a-cheap-livestock-feed-production-business-hydroponic-fodder-systems/