The Agricultural Core

In this chapter the agricultural core is described in length. It summarizes the economic benefits, the climate that accompanies the region, and the contribution it has had to the growth of cities. The core region does not consist of Atlanta or the state of Georgia. An important aspect in the region is the soil. There are two basic categories that soils fall in to. First there is alfisols and second there are mollisols.Alfisols are associated with mixed forrests. Alfisols are generally important in the production of minerals. On the other hand are suited for grain production. These soils form under grasses and not forest covers.
Soil temperatures in Atlanta vary. Take into account the following statements.
Soil temperature and soil moisture are very important for farmers and agricultural interests, since they indicate when crops can be planted, and when irrigation is needed. For example, corn can be planted when the soil temperature rises above 55 degrees, while cotton and alfalfa require the soil temperature to be above 65. Homeowners can use this information to determine when to set out annuals.
Taken from lawrencevilleweather.com
http://www.lawrencevilleweather.com/page2.htm
Here you will see a map of the agricultural core.