Studies of the root development of certain varieties of sorghum under greenhouse conditions have shown that: that radicle is the only temporary root developed in sorghums. Shortly after germination the first node develops below the surface, and from this node the first permanent roots develop.

"The cowpea plant may be fed to live stock as pasturage, hay, or ensilage, and the seed may be used as human food. Cowpeas are not grown for seed more generally because of the uncertainty of the crop, the expense of harvesting, and the low yield commonly obtained. These factors have created a relatively high price for the seed. In localities well suited to production it will be found highly profitable to grow cowpea seed on a large scale, especially if the best machinery for handling the crop is used, Harvesting cowpea seed can be done most cheaply by the sue of machinery. The crop may be cut with a mower, self-rake reaper, or bean cutter. When the plants are thoroughly dry, the seed may be thrashed with an ordinary grain separator with modifications, or better still, with a machine specially constructed for thrashing cowpeas. The seed has a high feeding value, but is rarely cheap enough to use as feed. It is fed to some extent to poultry. The cowpea is generally and favorably known in the South as a staple human food, being used in the pod, shelled, green and shelled dry. Good cowpea seed can be stored for a considerable length of time without much danger of loss of vitality. Cowpea hay is an excellent roughage for all kinds of stock. When cut at the right stage of growth and properly handled, the cow pea is equally as nutritious as the hay from other legumes and is greatly relished by all farm animals. The hay is somewhat difficult to cure, but with attention to the stage of growth and to weather conditions, little more trouble will be experienced in obtaining well-cured cowpea hay than red-clover or alfalfa hay. The cowpea alone has not given good results as a silage crop, the best silage being obtained when it is mixed with corn or sorghum. Although pasturing cowpeas is not considered the best farm practice, under certain conditions it is advisable and quite profitable. As a soiling crop the cowpea can be advantageously used to supplement crops with less protein, such as corn, sorghum and millet. The cowpea has been used more as a soil renovator than any other legume because it is so easily grown, has such a marked effect upon succeeding crops, and succeeds under such a great diversity of conditions."--Page 2.

"The grain-sorghum crop increased from approximately 2,000,000 acres in 1903 to 5,000,000 acres in 1919. The average acre yield varies from about 12 bushels in poor seasons to more than twice that quantity in favorable seasons. The more important grain sorghums are included in two groups of varieties, the kafir group and the milo-durra group. Dwarf and early varieties in both groups are best for the higher and drier districts. The use of good seed of adapted varieties, a well-prepared seed bed, clean cultivation, and the right method of handling after harvest will increase the yield and quality of the grain. The milos and feterita ripen in 29 to 110 days, which adapts them to short seasons, high elevations and low rainfall. The kafirs are not so early and require more moisture. They do best when the rainfall is about 25 inches and the elevation ranges up to about 2,000 or 2,5000 feet. Pure seed is important. Select the seed heads from the standing stalks before the crop is harvested, so the best plants may be found. These crops will grow on moist soil types. It pays to delay sowing until the soil is warm. Cold soil injures germination and delays growth. From 2 to 3 pounds of good, clean seed are required to sow an acre. On the average, 10 to 12 inches of row space to the plant in rows of 3 1/2 feet apart is best for the milos and feterita and 14 to 16 inches for the kafirs. Clean cultivation is essential for best results. Kill the weeds and keep the surface soil loose. Harvest the crop when it is ripe. Dry or cure the heads properly before thrashing and adjust the thrasher so that the grain will not be cracked. The grain should be clean and dry before it is stored in bulk; otherwise it will get out of condition quickly. While in storage it should be watched for signs of heat ling."--Page [2].