LEEDS — University of Maine Cooperative Extension will participate in two presentations related to farm energy at Maine Farm Days on Friday, Aug. 21, at the Barker Farm, 9 Barker Road.

Discussion of a feasibility study of methane digestion on a medium-sized Maine dairy farm will take place from 11 a.m. to 12:30 p.m. Jeff Bragg of Rainbow Valley Farm, Will Brinton of Woods End Laboratory and Caragh Fitzgerald of Cooperative Extension will review results of the study.

The focus will be on a high-solids procedure that appears to be more appropriate for smaller farms. The technology can be used to produce methane from manure. The methane can be burned for heat or to fuel a generator and produce electricity.

Rick Kersbergen, Ellen Mallory and Caragh Fitzgerald, all of Cooperative Extension, will talk about how to grow oilseeds and small grains from 12:45 to 2:15 p.m. Basic production practices, pest management and potential markets will be discussed. Both types of crops can provide livestock feed, and the oil from the oilseeds can be burned or used to produce biodiesel.

The two presentations will take place at the oilseed/small grain demonstration area.

Other energy topics will include community wind technology, solar energy and carbon sequestration. For more information about Farm Days and for a full list of presentations, see www.mainefarmdays.com.