What policies of Mao took away the peasants motive to work for he good of themselves and their families?

Mao believed that peasant equality and hard work were all that was needed to improve the Chinese economy. For example, "labor could make up for the lack of tractors on the huge agricultural cooperatives that the government had created." However, lack of modern technology damaged Chinese efforts to increase agricultural and industrial output. Later on, some of his not very thoughtful policies took away the peasants' motive to work for the good of themselves and their families.