104 WHEAT 



are some wheat rotations in practical use which 

 include most of the requirements named : 



1. Wheat, clover, potatoes three year rota- 

 tion. 



2. . Wheat, clover, corn, oats four year rota- 

 tion. 



3. Wheat, clover and timothy (2 years), corn, 

 oats five year rotation. 



4. Wheat (2 years), alfalfa (5 years), corn 

 (2 years), oats ten year rotation. 



5. Wheat, wheat plus catch crop of cowpeas, 

 corn, oats four year rotation. 



6. Wheat, wheat, cowpeas three year rota- 

 tion. 



7. Wheat, corn and cowpeas, oats three year 

 rotation. 



It is possible to use barley or other small grain 

 in place of oats. Other green manure crops may 

 be used instead of cowpeas, such as sand vetch, 

 field peas, sweet clover, crimson clover, etc. 



ROTATION FOR SEMI-ARID LAND 



A regular and systematic rotation of crops is 

 not so easily adopted and carried out in the semi- 

 arid regions, but the following plans may be 

 successfully used : 



1. Wheat, flax, fallow three year rotation. 



2. Wheat, corn, flax three year rotation. 



3. Wheat, flax, corn, oats four year rotation. 



4. Wheat (4 years), grasses and legumes 

 (5 years), corn ten year rotation. 



5. Wheat (2 years) green crop with fallow, 

 corn four year rotation. 



