Every farmer knows that when a crop is grown on the same field year after year, it becomes inferior in quality and the yield steadily diminishes.

From Dusty Shelves: Audels Gardeners and Growers Guide teaches us about soil acidity.

Often good stands of red clover are injured in the fall by close grazing or late cutting. Such treatment nearly always results in a thin stand or a complete killing by the next spring. It is desirable that the clover should make from 4 to 6 inches of growth before the time that severe freezing weather begins, and that this growth should not take place late in the season. Under conditions favorable for growth, blooming may occur in the fall of the seeding year. To insure strong growth during the second year, this blossoming should be prevented by grazing or high clipping.