Compositions comprising a first component comprising an agriculturally acceptable complex mixture of dissolved organic material characterized by natural organic matter that is partially humified and at least one agriculturally acceptable microorganism. The bearing extends between two edges which, in normal operation, constitute regions for the removal of a film of water formed in the bearing. A current sensor, such as a flyback transformer, is positioned in series with the contacts, wherein when the contacts open, current is interrupted through the contacts and the transformer, a secondary voltage results which is applied to the transistor, which tends to maintain the transistor on for a time which is sufficient to allow the contacts to either open or close without an arc.