520 



FIELD CROPS 



oats (or wheat) ; 4, meadow; 5, pasture. It is possible in the 

 southern part of the corn belt to grow a crop after grain if 

 the land is not seeded to grass. A rotation embracing this 

 feature might be devised like this: 1, corn; 2, oats, fol- 

 lowed by cowpeas or soy beans; 3, wheat; 4, meadow; 

 5, pasture. 



In Minnesota, Wisconsin, and the Dakotas, some of the 

 rotations used in New York and New England may be profit- 

 ably followed. In the 

 Dakotas and farther 

 west, rotations are not 

 commonly practiced, 

 only small grain crops 

 being extensively grown. 

 A system of farming 

 based on a single class 

 of crops can hardly be 

 called a rotation. The 

 land is usually sown to 

 flax when it is first 

 broken; wheat is then 

 grown for a period of 



1912 CORM 



1913 OATS 

 I9M MEADOW 



1915 PASTURE 



1916 CORM 



1912 OATS 



1913 MEADOW 



1914 PASTURE 



1915 CORM 



1916 OATS 



1912 MEADOW 



1913 PASTURE 



1914 CORM 



1915 OATS 



1916 MEADOW 



1912 PASTURE 



1913 CORM 



1914 OATS 



1915 MEADOW 



1916 PASTURE 



Fig. 155. 

 Fig. 154. into a four-year rotation 



An expansion of the rotation in 

 Timothy 



first year after seeding; the second year, it years, when One Or tWO 



is sown with the clover and is cut for hay the 

 first year after seeding; the second year, it 



ispastured - crops of oats or barley 



may be introduced, to be followed again by wheat. 

 Under this system, weeds increase rapidly, and it is often 

 necessary to resort to the bare fallow or to introduce a 

 cultivated crop to control them; the latter is preferable. 

 The crops which are commonly introduced are corn and 

 potatoes, and both are usually grown with success. 



683. Rotations in the Far West. In the Great Plains, 

 Rocky Mountain, and Pacific states the systems of farming 

 are yet too new for any general series of rotations to have 



