102 The Bulletin 



that recommended for corn. In addition to the acid phosphate it would 

 he well to apply 200 to 400 pounds of rock phosphate per acre, as this 

 fertilization is for both the wheat and clover crops. 



An application of 600 to SOO pounds of rock phosphate per acreto 

 the crop of clover before it is turned under in the fall should furnish 

 sufficient phosphoric acid for the crops of the second period of this rota- 

 tion. Within a comparatively short time enough nitrogen should be 

 furnished by the soja beans, or cowpeas, the clover, and the roughage, 

 or stable manure if crops are fed, that the nitrate could be entirely 

 dispensed with. The application of rock phosphate and lime should 

 be made every 4 or 5 years. Livestock farming in connection with this 

 rotation would materially help in improving the productivity of these 

 soils. 



FOUR-YEAR ROTATIONS. 



A good four-year rotation is the same as the above with oats and soja 

 beans or cowpeas following corn the second year. 



Other four-year rotations which could be adopted in this section are: 



First Year — Corn. 



Second Year — Crimson clover and cowpeas or soja beans. 



Third Year — Wheat, red clover. 



Fourth Year — Red clover. 



Or for sections of the Piedmont Plateau in which cotton is grown use 

 one similar to this: 



First Year — Corn. 

 Second Year — "Wheat, red clover. ■ 

 Third Year — Red clover. 

 Fourth Year — Cotton, rye. 



A similar method of fertilization should be adopted with these four- 

 year rotations as is given for the three-year rotation. 



FIVE- OR SIX-YEAR ROTATIONS. 



Any of these rotations with two years of pasture added would make 

 them even better adapted to livestock farming. Where it is desired to 

 grow cotton, the following six year rotation should under^ an intelligent 

 supplemental system of fertilization and proper cutlivation, give good 

 results : 



First Year — Corn, with cowpeas in the row or sown broadcast just before 

 the last cultivation. 



Second Year — Cotton, with rye sown broadcast in the cotton after the first 

 picking and covered with a harrow or light cultivator. 



Third Year — Cowpeas, wheat. 



Fourth Year — Wheat, red clover. 



Fifth Year — Red clover. 



The fertilizer here too would be similar to that indicated above for a 

 three-year rotation. 



