Farmers' bulletin (United States. Dept. of Agriculture); no. 894

"Rye should be grown much more widely than at present in many parts of the Southeastern Stats. In any consideration of the expansion of the acreage of bread grain and in any encouragement given for the production of home-grown bread in this section it is necessary to consider wheat and rye together. This is because rye can be sown safely on many fields with less risk than wheat. Further, rye can be used as a substitute for wheat as a bread grain by those who are accustomed to it. Rye succeeds on poorer and sandier soils and with less fertilizer than wheat. For these reasons it should be sown in preference to wheat where it has been proved a safer crop. Rye is also the best grain in most of this section for use as a cover, green manure, and grazing dcrop. Home-grown seed is best. Northern-grown rye is not suitable for sowing in the South." -- p.