The older, thinner, and less productive grass lands, however, frequently can be made to produce much larger yields of feed in corn than if left, as they are, in unproductive grass.

It is obvious that the greatest and most important service that is required of our agriculture under existing conditions is an enlarged production of the staple food crops.

The high food value of field beans and the shortage of supply due to the light yields of 1915 and 1916 render them of great importance in the regions to which they are adapted.

Corn is the leading food and feed crop of the United States in geographic range of production, acreage, and quantity of product. The vital importance of a large acreage of this crop, properly cared for, therefore, is obvious.

The soy-bean, in particular, has proved sufficiently resistant to cold in spring and to adverse weather during summer to warrant heavy planting, especially throughout the South.

In the southern half of the country perhaps no crop has larger possibilities for quick increase of production of food for both men and animals than the sweet potato.

For the Gulf States, perhaps no forage crop of which the available seed supply is relatively abundant exceeds the velvet bean in potential value. This legume possesses also the ability to make a crop when planted relatively late.