The smart living handbook is compiled by the CIty of Cape Town and provides tools on how to live smartly. Information on key environmental challenges, steps towards less water and energy use, and creating less waste, together with useful contacts and resources can be found in this handbook. It would probably be more useful to small-holding farmers than commercial farmers. Each section in the handbook starts with a useful summary of that section, so you can decide if that section will be useful to you or not. Colour coding for sections also makes it easier to use.
Online version of the handbook in English and Afrikaans: