The Introduction of Collectivisation
Stalin wanted to reform Russian agriculture in order to create a fairer, more efficient economic system. He did this through collectivisation, which involved merging smaller farms into large collective farms. This would increase efficiency, increase food production and allow more peasants to move to the cities to help work in industry.
Stage 1: The Grain Procurement Crisis 1927-29 was a period in which bad harvests led to wealthier peasants ("kulaks") witholding grain in order to drive the price up. Stalin used this as justification to introduce collectivisation.