About 3 percent is used for miscellaneous purposes. This is an important cash-crop area. Soybeans, cot- ton, and wheat grown by highly mechanized methods are the major crops throughout the area.
Corn is an important crop in Missouri.
Rice is an important crop in Arkansas, Louisiana, and Mississippi, and sugarcane is important in southern Louisiana. Controlling surface water and artificially draining the wet soils are major concerns of management. The area consists of level to gently sloping broad flood plains and low terraces. Most of the area is flat. The only noticeable slopes are sharp terrace scarps and natural levees that rise sharply to several meters above adjacent bottom lands or stream channels.