You might be interested in a few previous threads on poverty in the Soviet Union:

• How succesful was the Soviet Union at ending extreme poverty (post-Stalin)? - 3 comments, over 5 months old.
• A commenter here gives a detailed overview of almost the exact period you're looking for.
• Did communism provide a better safety net than capitalism for 'homeless' people during the Cold War era? (Soviet Union vis-à-vis USA) - 128 comments, less than 1 month old.
• Lots of scattered information in a sea of deleted comments, most of which are focusing on the period you're interested in.
• How did the Soviet Union go from being a third-world country, a victim of poverty, instability, revolutions, purges, hungers, executions, world wars, invasion, genocide, to a significant player by 1945 and a contender for world power in the 50s and 60s? Seems to defy all logic. - 22 comments, over 1 year old.
• The commenters here talk about the period immediately proceeding the one you are interested in, but it may prove valuable for giving the context out of these later developments occurred.