Actually, Stalin helped Industrialize Russia faster than other country, or leader, but not to forget the great cost of life, but remember: No other leader in history would have industrialize Russia faster than Stalin, and in such good time too, even if the N.A.P. signed with Russia and Germany wasnt even signed, Hitler would have still invaded Russia, I doubt Trotsky or some Tsar would be right for the job
Stalin didn't do a damn thing to improve the Soviet Union. If anything, his entire reign was a detriment to the economic progress of the nation. Starving the peasants who are working on collectivized farms in lands stolen from them (that were far more prosperous than the collective farms ever were) to buy heavy machinery and equipment that was often left to rust due to ineffective management of resources did not improve the economic situation of the Soviet Union. If anything, the statistics from the NEP (New Economic Plan or capitalism light) years in the 1920s to the stranglehold of that mad man's reign show a drecrease in economic progress.
I recommend the dissident piece
Bitter Waters: Life and Work in Stalinist Russia to give you a better idea of how industry (in this case lumber and logging) fared under the 1930s Stalinist controlled government. It is written by a political prisoner who was released from the gulag in the early 30s due in part because of the increasing lack of workers from the purges and general asshattery of the Bolshevik regime at that time.
Regardless, Stalin's bungling of the military buildup/improvements that were made in the 1930s nearly cost the Soviets the war with Germany. Stalin shut himself into seclusion as the Germans rolled through; the Russian winter saved Stalin's regime. The Russian people saved themselves despite Stalin, and many would not have minded the Nazis finishing their objective either.
The post war period of Stalin's regime has often been coined "A Return to Normalcy" in that the horrible conditions of the 30s were returned to. You were starving, near homeless, and you probably had family members whisked away by the government to rot for some trumped up charges. At least during the war period the government was too busy saving itself to focus on you. Well, they returned to the horrible existence after the war... "normalcy."
Millions may have died, but about 80 years of Soviet controlled Russia the farmers still lasted alive, maybe of more farm-able land from Eastern Europe? (Im not saying Russia DID farm in Eastern Europe, Im just saying it s a possibility)
Any farming reforms are better to be credited to Khrushchev and his virgin lands campaign in the later 50s. Stalin's era of control sure as hell didn't have farming or feeding his people as its objective.
Russia was still industrializing itself by that time, it was planning to attack the Germans after their armies were exhausted and after Russia was industrialized, if that did happen though, then Soviet control over Europe would have been have been extended to France, imagine the Cold War in that Parallel world
They did a really bad job at industrializing themselves. The Soviets would have been rolled by the Germans in Western Europe. They were nearly obliterated save the Russian winter in the first place.
Ugh, if I was a industrial worker in a Russian city I wouldnt have to worry about hunger, but sure, I'll work hard for Soviet Russia
If I was a farmer, then I'll try any way to overcome the hardships of collectivization and try raising more animals than possible
There were severe food shortages in the cities, as Stalin was selling the nation's grain supply to buy industrial equipment and weapons that were often wasted and rusting within five years.
On the collective farms, you did not get to eat what you produced. As far as animals, it was illegal for you to own your own. This is why the khulaks revolted in the 20s and harvested/slaughtered what little they had acquired during their short stint of freedom between their release from peasantry in the late 1800s to the Bolshevik take over. When they were done revolting and starving the government came in to round them up and work them to death. There was an eventual allowance of peasants to have small gardens to grow spare vegetables for themselves, but it was never enough to save or feed themselves in any entirety.
Incidentally, one of the problems that the Soviet Union had following World War II was its inability to get people to go back to the collective farms. Those who could got the hell out of dodge during the war period.
Stalin sucked. He deserves no credit for any positive.