In Iowa soybeans have more uses than any other legume. They may be grown either alone or in combination with corn. The seed is one-third protein and contains two important vitamines, making it a high grade, home grown supplemental feed for any kind of livestock. The soybean plant is as high in feeding value as alfalfa and may be used in the form of hay, pasture, silage or soilage, or as a protein concentrate.

Preliminary tests made by the Iowa Agricultural Experiment Station of Hubam, the annual white sweet clover discovered in 1916 by H. D. Hughes of the Farm Crops Section at this station, indicate that this crop will probably prove to be the best green manure crop to seed with small grain in the spring and plow down in the fall of the same year, on soils which are well drained and not acid.

These tests also indicate that it will make an excellent summer and fall pasture crop for cattle and sheep, as it makes a leafy and succulent growth following the removal of a small grain crop, or following the removal of a hay crop when seeded alone. They further indicate that Hubam clover will prove to be a satisfactory emergency leguminous gay crop to seed when red clover or alfalfa fail.

Sudan grass is one of the very best non-leguminous emergency hay crops available for use in Iowa. It has been under observation at the Iowa Agricultural Experiment station during the past eight years. Over 250 experimental seedings have been made with it in the past five years. It surpasses millet or oat hay from the standpoint of yield and is about the same in feeding value as these crops, as well as timothy. It is not a legume and is surpassed In feeding value, pound for pound, by clover, alfalfa or soy beans. Since it is not a legume it does not take its nitrogen from the air. It is therefore not recommended as a regular crop in the rotation, but as an emergency or catch crop which can be used to advantage for hay, pasture or soiling. Being an annual, it does not compete with clover, alfalfa, or timothy, which live for more than one year.

The Iowa Agricultural Experiment station has grown a number of different varieties of soy beans each year since 1910. It finds the crop very dependable, the better varieties producing yields of from 15 to 25 bushels of seed, or 2 1/2 to 3 1/2 tons of hay per acre In most seasons. The soy bean has a large number of uses as a hay crop, for seed, for silage, and tor pasturing with com, and it Is well suited to Iowa's climate and soil.