tenant farmers coped with falling prices by waiting for the item to be rare again and while they wait they store up on other items not including that one item with lowering prices. The tenant farmers don't store up on it, because they have plenty of that item. IN addition having a scarcity of an item makes the price of that item rise.
Farmers grew angry and desperate. During World War I, farmers worked hard to produce record crops and livestock. When prices fell they tried to produce even more to pay their debts, taxes and living expenses. In the early 1930's prices dropped so low that many farmers went bankrupt and lost their farms.