Portal:United States Department of Agriculture, Farmers' Bulletin No. 1280 — The Hard Red Winter Wheats (1922)
“ The districts of northeastern Kansas, northern Missouri, southern Towa, and central Illinois are those in which both hard and soft red winter wheats are grown. In these sections the value of Turkey in comparison with other varieties depends on the soil, elevation, rainfall, and seasonal or local conditions, but in general several varieties of soft winter wheat are nearly or quite equal to Turkey. North and west of the area of heavy production of hard red winter wheat, the Turkey is one of the best adapted varieties of winter wheat. ”
