LEWISTON, Minn. – The Land Stewardship Project is offering tips on a cutting-edge composting system to build soil health and fertility naturally. Soil microbiology experts David Johnson and Hui-Chun Su will demonstate their bioreactor system for fungal-dense composts as a beneficial inoculant to depleted soils. The day-long event August 26 at the Dale and Carmene Pangrac and Kim and Andy Olson dairy farm on Trestle Drive north of Lewiston. Registration.