On many New England farms near towns, hay and straw are the chief money crops. Here the rotation is grass two or more years, then a cleansing crop and a grain crop. A Canadian rotation is wheat, hay, pasture, oats, peas. A rotation for the South might be corn, crimson clover, cotton, crimson clover; this rotation covering a period of two years. A South Carolina rotation is oats, peas, cotton, corn—a three-year rotation. It might be improved as follows: Oats, peas, crimson clover, cotton, crimson clover, corn.
CHAPTER XXV[ToC]
Farm Drainage
Some farm lands contain so much water that the conditions of fertility are interfered with and therefore the crop producing power of these lands is lowered.
HOW SURPLUS WATER AFFECTS FERTILITY
This surplus water diminishes fertility by reducing the area of film water in the soil.
It checks soil ventilation.