318 THE SMALL GRAINS 



having two corn crops in succession, while the grass is 

 seeded with the oats and remains two years as a meadow 

 pasture. In Minnesota, a 3-crop rotation of corn, barley, 

 and grass has proven satisfactory, depending in length 

 upon the number of years in grass, the grass seed sown 

 with the barley. The following has proved to be an 

 excellent rotation at the Central Experimental Farm, 

 Ottawa, Canada. 



First year corn, 15 tons manure to the acre applied in spring 

 and shallow plowed shortly before planting time, turning under the 

 clover (sown with wheat previous year) and manure. 



Second year oats, seeded down with 8 pounds red clover, 2 

 pounds alsike, and 10 pounds timothy to the acre. 



Third year clover hay, two crops, top dressed in fall with ma- 

 nure at 15 tons to the acre. 



Fourth year timothy hay, field plowed in August, top worked 

 and ribbed up in October. 



Fifth year wheat, seeded down with 10 pounds red clover to be 

 turned under the following spring. 



344. Rotations for the South. In the oat districts of 

 the South, a good rotation is corn-oats-cowpeas-cotton, 

 a 3-year series in which cowpeas are grown the same season 

 the oats are harvested. Often cowpeas are planted with 

 the corn, giving the soil the benefit of two leguminous 

 crops in succession. Where wheat is profitable, it is sub- 

 stituted for oats. A 4-year rotation, including either 

 wheat, oats, or barley, and three leguminous crops, may 

 be arranged advantageously as follows : (1) Cotton, 

 with crimson clover sown later between the rows ; (2) cot- 

 ton; (3) corn with cowpeas; (4) wheat followed with 

 cowpeas. Another very suitable rotation in some places 

 includes 3 cereals, as follows : (1) Cotton with crimson 

 clover sown at the last cultivation and plowed under the 



