These renewable sources are normally processed off-farm and sold nationally or regionally and, as such, are not considered as a local autonomous power supply for agriculture. In the future, it is likely that the diesel oil supply will dwindle and may eventually run out. As such, governments and appropriate agencies may wish to encourage the development of an infrastructure for processing and distribution of diesel fuel alternatives to cope with such a scenario.
Primary tillage is one of the first operations to be mechanized when a new source of mobile power becomes available. Secondary tillage operations often continue to be performed by the old power source for a long period. Transport.
On the other hand, a contractor servicing many small growers in a local region can spread the capital cost accordingly and provide a service at an affordable price. For individual farmers who cannot afford a new and expensive item of equipment and who prefer not to depend on contractor availability, purchase of second hand equipment is an option where the support of a local finance agency may be required.