62 CULTIVATION METHODS AND ROTATIONS FOR GREAT PLAINS. 



June. In other parts of the area it may vary somewhat, but when 

 the time arrives and the soil is thoroughly warm and in good condi- 

 tion and when there is a reasonable prospect of rain the brome-grass 

 should be sown, as heretofore described, at the rate of about 20 

 pounds per acre and thoroughly harrowed in. The weeds having 

 been kept down by previous harro wings and the soil having become 

 packed into a firm seed bed and being moist and warm, the brome- 

 grass should come up very quickly and evenly and will be able to 

 keep ahead of the weeds, and a good stand ought to be the result in 

 almost any part of the area during years of normal climatic conditions. 



FOUR-YEAR ROTATION (NO. 3). 



Field A, 40 Acres. 



1910. Corn. 



1911. Wheat, winter or spring. 



1912. Red clover. 



1913. Oats, barley, emmer, or wheat. 



Field B, 40 Acres. 



1910. "Wheat, winter or spring. 



1911. Red clover. 



1912. Oats, barley, emmer, or wheat. 



1913. Corn. 



Field C, 40 Acres. 



1910. Red clover. 



1911. Oats, barley, emmer, or wheat. 



1912. Corn. 



1913. Wheat, winter or spring. 



Field D, 40 Acres. 



1910. Oats, barley, emmer, or wheat. 



1911. Corn. 



1912. Wheat, winter or spring. 



1913. Red clover. 



In some parts of the area clover has been successfully grown, and it 

 is believed that it might be very much more extensively grown than 

 it is at present. As it is a nitrogen gatherer, it is more desirable for 

 improving the condition of the soil than is brome-grass, and we 

 would therefore recommend the modification of rotation No. 2 by 

 making it a 4-year rotation, which would necessitate the dividing 

 of the farm into four fields of 40 acres each, as shown in rotation 

 No. 3. There would then be 40 acres in corn, 80 acres in small grain, 

 and 40 acres in clover each year. The clover can be sown with the 

 wheat at the rate of about 15 pounds per acre. If it proves imprac- 

 ticable to raise clover with the wheat as a nurse crop, the rotation 

 can be changed to a 5-year rotation, seeding the clover on thor- 

 oughly prepared ground, as discussed for brome-grass in the 6-year 

 rotation (No. 2). Flax might be raised on the clover sod, as sug- 

 gested for brome-grass sod. 



187 



