CROPPING SYSTEMS 



411 



He will grow 108 acres of crops each year. If he divides 

 the area into three fields of 36 acres each, he might use 

 the following rotation and arrangement : 



The poorest 27 acres in the hay field is plowed up each 

 year for corn and potatoes. The remaining 9 acres is left 

 for hay. 



The next year oats are planted on all of this field. 

 The area in sod should be fall plowed in order to get a 

 good oat crop on this part. Timothy and clover are 

 seeded with the oats. 



The .third year this field is in clover and timothy hay. 



Each field follows this same rotation, so that there is 

 always the same area of each crop. There are always 

 two large fields, and every year one field is divided into 

 three parts. This gives one acre too much of oats and 

 one too little of hay. If this is not satisfactory, one acre 

 of oats may be cut for hay, or one acre of oat and pea 

 hay may be grown. 



The same crops might be grown in a four-year rotation 

 on four fields of 27 acres each. 



A field of hay is plowed up for corn and potatoes. 

 The next year this is sown to oats and 19 acres of the 

 field is seeded to clover and timothy. The remaining 8 



