explain the cause and effect of the end of WWI on farmers during the 1920s.

here is the paragragh

The prosperity of the 1920s was not universal. In 1920, nearly half the nation's population still resided in rural areas, dependent upon agriculture for survival. And the Roaring Twenties were unkind to America's farmers. World War I was a period of great prosperity for farmers. The agricultural production of much of Europe had been destroyed by the war. The lost European production led to an enormous demand and high prices for farm products throughout the world. Farmers in America, like other areas that hadn't been turned into trench-lined battle zones, increased production accordingly and reaped great profits. However, the war's end allowed the resumption of normal European production, and suddenly the world faced a huge glut of agricultural products, with no market of buyers.

From 1920 to 1921, farm prices fell at a catastrophic rate. The price of wheat, the staple crop of the Great Plains, fell by almost half; the price of cotton, still the lifeblood of the South, fell by three-quarters. Farmers, many of whom had taken out loans to increase acreage and buy efficient new agricultural machines like tractors, suddenly could not make their payments; throughout the decade, farm foreclosures and rural bank failures increased at an alarming rate.