The Dust Bowl that afflicted the United States in the 1930s led to many changes in farm policy from the federal government. These policies tried to address the farming practices that led to the Dust Bowl by tailoring agricultural practices to the specific conditions in an area. Which of these did NOT contribute to the Dust Bowl?

Massive industrial agriculture operations disturbed the solid with large petroleum powered equipment.  

Explanation:

The period of dust storms that damaged the agriculture and ecology of Canadian and American prairies during 1930's is called dust bowl. It is called Dust Bowl because choking dust and high winds swept the region from Texas to Nebraska killing livestock and people, the crops also failed in the region affected by Dust bowl.  

Extended drought coupled with economic depression, poor agricultural practices, high temperatures and wind erosion all contributed to the Dust Bowl.  

The farmers lost their homes and livelihood, and their crop prices fell below the subsistence level due to the Great depression. More than one hundred million acres of the southern plains turned into a wasteland, Texas, Kansas, Oklahoma, New Mexico and Colorado were most affected. There were 14 dust storms in 1932 and 38 in 1933.

The federal government sent the aid to the drought affected states in 1932.

the best description of postwar writers might be progressive.

following the war, writers showed a tendency to work on artistic or social matters rather than political themes. while postwar literature may not have been the greatest period of english literature, the themes provided excellent critics a high number of novels. such examples include anthony burgess, anthony powell and frank kermode, all of which can be placed under the progressive view.

“i think it is very plausible that if there are five votes to end the death penalty, it could be with the people who are on the court right now,” - smith

so basically it is not clearly and consistently imposed