1. Mixed farming.

Types of Agricultural Activity.—American agriculture has developed, during the past three hundred years, in five or six different directions. The earliest settlers in the northern colonies devoted themselves to general or mixed farming, in other words to the raising of grain, hay, and cattle on the same tract of land. This was because the environment and needs of the northern region alike favored this method. Mixed farming has continued to be the mainstay of agriculture east of the Alleghenies; in some measure it has spread to other parts of the country as well.

2. Staple or plantation farming.

A second type of agriculture, almost from the very outset, made progress in the South. This involved the raising of certain staple products, such as rice, tobacco, sugar, and cotton on large plantations. The soil, climate, and general environment of the southern colonies all lent themselves to this type of agriculture and it eventually spread itself over the whole region. Cotton in time out-stripped the other staples and became king of the whole South. This was largely because the invention of the cotton gin, an appliance for removing the seeds from the fibre, greatly reduced the cost of preparing cotton for the market. The scarcity of free labor to work these great plantations led to the importation of negro slaves and the institution of slavery had a profound effect upon the subsequent course of American history. Since the emancipation of the negroes, the plantation system has remained although many of the larger tracts have been broken up into small holdings.

3. Cereal growing.

The opening of the Middle West and Mississippi Valley brought in a third form of agricultural activity, namely, the production of cereals (such as corn, wheat, oats, rye, and barley) on great tracts of prairie land. This form of agricultural production received a great impetus from the invention of labor-saving machinery, notably the power-reaper. The region of extensive cereal production today includes the Middle West, the Northwest, and the Mississippi Valley, making the richest grain-growing area in the world.


LAND REGIONS
OF THE
UNITED STATES.

LAND REGIONS OF THE UNITED STATES