. Bulletin of the Department of Agriculture. Agriculture; Agriculture. SUDAN GEASS AND RELATED PLANTS. 25 must be either a money crop or a soil improver. In certain Southern States where good prices are to be obtained for hay, Sudan grass may be used like the corn or wheat of our Northern States as one of the money crops, but in other States it is not likely to supplant the well-known plants of our common rota- tions. It probably exhausts the fertility of the soil as rapidly as corn yor cotton. Sorghums are popu- larly supposed to be "hard on the soil," and this reputed deleteri
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. SUDAN GEASS AND RELATED PLANTS. 25 must be either a money crop or a soil improver. In certain Southern States where good prices are to be obtained for hay, Sudan grass may be used like the corn or wheat of our Northern States as one of the money crops, but in other States it is not likely to supplant the well-known plants of our common rota- tions. It probably exhausts the fertility of the soil as rapidly as corn yor cotton. Sorghums are popu- larly supposed to be "hard on the soil," and this reputed deleterious effect on fertility is frequently mentioned by farm- ers in the timothy and red clover region as their reason for not growing Sudan grass. A 4-year rotation for the cotton belt which has been sug- gested by the Texas Agricultural Experi- ment Station (29, p. 9) is, for the first and second years, cotton; third year, corn or grain sor- ghum, with cowpeas interplanted, to be pastured or plowed under for green ma- nure ; fourth year, Su- dangrass. Insucha rotation the grain sorghums should be used only in those regions where they are not subject to attacks of the sorghum midge. It is quite likely that such a rotation would require the application of some fertilizer, preferably barnyard manure, at least once in four years, since the small quantity of humus added by the legume would hardly be sufficient to maintain fertility. 53321°—21—Bull. 981 4. Fig. -Growth of Sudan grass (at left) compared with that of mil- let, 48 days from Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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