How many acres of crops were harvested in the plains states in 1879 In 1899 In 1929 What is helping them achieve this level of production?

Well, honey, in 1879, the plains states harvested about 15 million acres of crops, by 1899 it was around 55 million acres, and by 1929 it had skyrocketed to over 100 million acres. This increase in production was mainly thanks to technological advancements like tractors, irrigation systems, and better crop varieties. So, there you have it, progress ain't always pretty, but it sure does get the job done.