[1] He joined the Menshevik faction of the Russian Social Democratic Labour Party, and became a spokesperson on agrarian reform.
After the October Revolution he held an anti-Bolshevik and was a commissar in the Provisional Siberian Government and participated in the State Meeting in Ufa.
Subsequently, Maslov came in to terms with the new Soviet government and became involved in science activity.
In November 1918 he was appointed professor at the Omsk Agricultural Institute in the Department of Political Economy and Statistics.
His grandson Victor Maslov, mathematician and physicist, academician of the Russian Academy of Sciences.